Results from experiments on winter barley measuring the effects of amount and timing of nitrogen and some other factors on the yield and nitrogen content of the grain

Penny, A., Widdowson, F. V. and Jenkyn, J. F. 1986. Results from experiments on winter barley measuring the effects of amount and timing of nitrogen and some other factors on the yield and nitrogen content of the grain. The Journal of Agricultural Science. 106 (3), pp. 537-549. https://doi.org/10.1017/S0021859600063425

Authors	Penny, A., Widdowson, F. V. and Jenkyn, J. F.
Abstract	RESP-09489
Year of Publication	1986
Journal	The Journal of Agricultural Science
Journal citation	106 (3), pp. 537-549
Digital Object Identifier (DOI)	https://doi.org/10.1017/S0021859600063425
Open access	Published as non-open access
Funder	Biotechnology and Biological Sciences Research Council
Publisher's version	results-from-experiments-on-winter-barley-measuring-the-effects-of-amount-and-timing-of-nitrogen-and-some-other-factors-on-the-yield-and-nitrogen-content-of-the-grain.pdf
Publisher	Cambridge University Press
	Cambridge University Press (CUP)
ISSN	0021-8596

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Optimising the benefits of fluquinconazole seed treatment in sequences of winter wheat crops

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Bateman, G. L., Jenkyn, J. F. and Gutteridge, R. J. 2003. Optimising the benefits of fluquinconazole seed treatment in sequences of winter wheat crops. Proceedings BCPC International Congress - Crop Science and Technology, Glasgow, 10-12 November 2003 . pp. 979-984

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Jenkyn, J. F., Bateman, G. L., Gutteridge, R. J. and Edwards, S. G. 2000. Effects of foliar sprays of azoxystrobin on take-all in wheat. Annals of Applied Biology - AAB. 137 (2), pp. 99-106. https://doi.org/10.1111/j.1744-7348.2000.tb00041.x

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Bateman, G. L., Jenkyn, J. F., Dawson, W. A. J. M. and Gutteridge, R. J. 2000. Controlling take-all in sequences of winter cereal crops using fluquinconazole seed treatment. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2000 . pp. 829-834

Towards better understanding and management of cereal stem-base diseases

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Bateman, G. L. and Jenkyn, J. F. 2000. Towards better understanding and management of cereal stem-base diseases. Proceedings Brighton Crop Protection Conference - Pests and Diseases, 2000 . pp. 119-126

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Williams, M. H., Stevenson, J. H., Jenkyn, J. F., Prew, R. D. and Roach, W. 1999. 'Observations of Weather' The Weather Diary of Sir John Wittewronge of Rothamsted 1684-89 (Hertfordshire Records Publications, Vol. 15).

Interactions of straw disposal methods and direct drilling or cultivations on winter wheat (Triticum aestivum ) grown on a clay soil

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Christian, D. G., Bacon, E. T. G., Brockie, D., Glen, D., Gutteridge, R. J. and Jenkyn, J. F. 1999. Interactions of straw disposal methods and direct drilling or cultivations on winter wheat (Triticum aestivum ) grown on a clay soil. Journal of Agricultural Engineering Research. 73 (3), pp. 297-309. https://doi.org/10.1006/jaer.1999.0423

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Gutteridge, R. J. and Jenkyn, J. F. 1998. Exploit that break. Crops. 16(11), p. 64.

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Plumb, R. T. and Jenkyn, J. F. 1998. Obituary: 1921-97: John Malcolm ('Jim') Hirst, FRS. Plant Pathology. 47, p. 543.

A comparison of management regimes for one-year rotational set-aside within a sequence of winter wheat crops, and of growing wheat without interruption. 3. Effects on diseases

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Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1998. A comparison of management regimes for one-year rotational set-aside within a sequence of winter wheat crops, and of growing wheat without interruption. 3. Effects on diseases. The Journal of Agricultural Science. 130, pp. 399-410. https://doi.org/10.1017/S0021859698005450

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Effects of wheat crop debris on the sporulation and survival of Pseudocercosporella herpotrichoides

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Jalaluddin, M. and Jenkyn, J. F. 1996. Effects of wheat crop debris on the sporulation and survival of Pseudocercosporella herpotrichoides. Plant Pathology. 45 (6), pp. 1052-1064. https://doi.org/10.1046/j.1365-3059.1996.d01-194.x

Effects on wheat diseases of three and five year set-aside covers

C1 - Edited contributions to conferences/learned societies

Jones, D. R., Froment, M. A., Jenkyn, J. F. and Gutteridge, R. J. 1996. Effects on wheat diseases of three and five year set-aside covers. Rotations and Cropping Systems. Aspects of Applied Biology 47 . pp. 441-444

Effects of cultivating one-year rotational set-aside at different times on take-all disease of winter wheat

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Jenkyn, J. F., Gutteridge, R. J., Gladders, P. and Yarham, D. J. 1996. Effects of cultivating one-year rotational set-aside at different times on take-all disease of winter wheat. Rotations and Cropping Systems. Aspects of Applied Biology 47 . pp. 449-452

Effects of inoculum sources on the accuracy and precision of experiments testing different times of applying fungicides to control powdery mildew (Erysiphe graminis f. sp. hordei ) on spring barley

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Jenkyn, J. F., Todd, A. D., Bainbridge, A. and Dyke, G. V. 1996. Effects of inoculum sources on the accuracy and precision of experiments testing different times of applying fungicides to control powdery mildew (Erysiphe graminis f. sp. hordei ) on spring barley. The Journal of Agricultural Science. 126 (3), pp. 259-275. https://doi.org/10.1017/S0021859600074815

Effects of sowing date and vernalisation on the growth of winter barley and its resistance to powdery mildew (Erysiphe graminis f.sp. hordei)

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White, N. and Jenkyn, J. F. 1995. Effects of sowing date and vernalisation on the growth of winter barley and its resistance to powdery mildew (Erysiphe graminis f.sp. hordei). Annals of Applied Biology - AAB. 126 (2), pp. 269-283. https://doi.org/10.1111/j.1744-7348.1995.tb05365.x

Inter-plot interference and nearest-neighbour analysis of field experiments

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Ainsley, A. E., Dyke, G. V. and Jenkyn, J. F. 1995. Inter-plot interference and nearest-neighbour analysis of field experiments. The Journal of Agricultural Science. 125 (1), pp. 1-9. https://doi.org/10.1017/S002185960007444X

Effects of incorporating or burning straw, and of different cultivation systems, on winter wheat grown on two soil types, 1985-91

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Prew, R. D., Ashby, J. E., Bacon, E. T. G., Christian, D. G., Gutteridge, R. J., Jenkyn, J. F., Powell, W. and Todd, A. D. 1995. Effects of incorporating or burning straw, and of different cultivation systems, on winter wheat grown on two soil types, 1985-91. The Journal of Agricultural Science. 124 (2), pp. 173-194. https://doi.org/10.1017/S0021859600072853

Effects of incorporating straw, using different cultivation systems, and of burning it, on diseases of winter barley

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Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1995. Effects of incorporating straw, using different cultivation systems, and of burning it, on diseases of winter barley. The Journal of Agricultural Science. 124 (2), pp. 195-204. https://doi.org/10.1017/S0021859600072865

Sensitivity (stability) analysis of multiple variety trials, with special reference to data expressed as proportions or percentages

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Dyke, G. V., Lane, P. W. and Jenkyn, J. F. 1995. Sensitivity (stability) analysis of multiple variety trials, with special reference to data expressed as proportions or percentages. Experimental Agriculture. 31 (1), pp. 75-87. https://doi.org/10.1017/S0014479700025035

Straw disposal and cereal diseases

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Jenkyn, J. F., Gutteridge, R. J. and Jalaluddin, M. 1994. Straw disposal and cereal diseases. in: Blakeman, J. P. and Williamson, B. (ed.) Ecology of plant pathogens CABI International, Wallingford, Oxon (CABI). pp. 285-300

Effects of previous crop, sowing date, and winter and spring applications of nitrogen on the growth, nitrogen uptake and yield of winter wheat

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Milford, G. F. J., Penny, A., Prew, R. D., Darby, R. J. and Todd, A. D. 1993. Effects of previous crop, sowing date, and winter and spring applications of nitrogen on the growth, nitrogen uptake and yield of winter wheat. The Journal of Agricultural Science. 121 (1), pp. 1-12. https://doi.org/10.1017/S0021859600076735

Effects of seven factors on the growth and yield of winter barley grown as a third consecutive take-all susceptible crop and of growing the barley after oats or a fallow

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Jenkyn, J. F., Carter, N., Darby, R. J., Gutteridge, R. J., Mullen, L. A., Plumb, R. T., Ross, G. J. S., Todd, A. D., Widdowson, F. V. and Wood, D. W. 1992. Effects of seven factors on the growth and yield of winter barley grown as a third consecutive take-all susceptible crop and of growing the barley after oats or a fallow. The Journal of Agricultural Science. 119 (3), pp. 303-333. https://doi.org/10.1017/S0021859600012168

Effects of sowing winter barley on different dates in autumn on the severity of take-all (Gaeumannomyces graminis var. tritici) in those and the subsequent crops

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Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1992. Effects of sowing winter barley on different dates in autumn on the severity of take-all (Gaeumannomyces graminis var. tritici) in those and the subsequent crops. The Journal of Agricultural Science. 119 (1), pp. 19-25. https://doi.org/10.1017/S0021859600071501

Fungal pathogens of grain lupins 1986-1991

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Bateman, G. L., Jenkyn, J. F., Johnson, S. A. and Da Silva, L. 1991. Fungal pathogens of grain lupins 1986-1991. Production and Protection of Legumes. Aspects of Applied Biology .

Effects of fungicides, applied in autumn, and a growth regulator, applied in spring, on the growth and yield of winter barley grown on contrasting soil types

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Jenkyn, J. F., Gutteridge, R. J. and Todd, A. D. 1991. Effects of fungicides, applied in autumn, and a growth regulator, applied in spring, on the growth and yield of winter barley grown on contrasting soil types. The Journal of Agricultural Science. 117 (3), pp. 287-297. https://doi.org/10.1017/S0021859600067010

Evaluation of 'Seamac 600' applied to winter barley

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Jenkyn, J. F. and Baxter, E. D. 1991. Evaluation of 'Seamac 600' applied to winter barley.

Agronomic aspects of straw incorporation

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Prew, R. D., Cussans, G. W., Glen, D. M. and Jenkyn, J. F. 1990. Agronomic aspects of straw incorporation. Agricultural Progress. 65, pp. 39-46.

Agronomic aspects of straw incorporation

C1 - Edited contributions to conferences/learned societies

Prew, R. D., Cussans, G. W., Glen, D. M. and Jenkyn, J. F. 1990. Agronomic aspects of straw incorporation. pp. 39-45

Effects of premature or delayed harvesting on the quality of barley for malting

C1 - Edited contributions to conferences/learned societies

Baxter, E. D. and Jenkyn, J. F. 1990. Effects of premature or delayed harvesting on the quality of barley for malting. Cereal Quality II. Aspects of Applied Biology 25. pp. 177-182

Effects of defoliation at different growth stages and in different grain-filling environments on the growth and yield of spring barley.

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Jenkyn, J. F. and Anilkumar, T. B. 1990. Effects of defoliation at different growth stages and in different grain-filling environments on the growth and yield of spring barley. Annals of Applied Biology - AAB. 116 (3), pp. 591-599. https://doi.org/10.1111/j.1744-7348.1990.tb06642.x

The dynamics of nitrogen accumulation in barley grain and malting quality.

G - Articles in popular magazines and other technical publications

Carreck, N. L., Christian, D. G. and Jenkyn, J. F. 1990. The dynamics of nitrogen accumulation in barley grain and malting quality. Ferment. 3, pp. 180-182.

Uptake of foliar-applied urea by winter-wheat (Triticum aestivum) the influence of application time and the use of a new 15N technique.

A - Papers appearing in refereed journals

Powlson, D. S., Poulton, P. R., Moller, N. E., Hewitt, M. V., Penny, A. and Jenkinson, D. S. 1989. Uptake of foliar-applied urea by winter-wheat (Triticum aestivum) the influence of application time and the use of a new 15N technique. Journal of the Science of Food and Agriculture. 48 (4), pp. 429-440. https://doi.org/10.1002/jsfa.2740480405

Interactions between plots in experiments with the splash-dispersed pathogen (Rhynchosporium secalis ) on winter barley.

A - Papers appearing in refereed journals

Jenkyn, J. F., Dyke, G. V., Stedman, O. J. and Todd, A. D. 1989. Interactions between plots in experiments with the splash-dispersed pathogen (Rhynchosporium secalis ) on winter barley. The Journal of Agricultural Science. 112 (1), pp. 97-114. https://doi.org/10.1017/S002185960008415X

Effects of straw inoculum and fungicides on leaf blotch (Rhynchosporium secalis ), growth and yield of winter barley.

A - Papers appearing in refereed journals

Jenkyn, J. F., Stedman, O. J., Dyke, G. V. and Todd, A. D. 1989. Effects of straw inoculum and fungicides on leaf blotch (Rhynchosporium secalis ), growth and yield of winter barley. The Journal of Agricultural Science. 112 (1), pp. 85-95. https://doi.org/10.1017/S0021859600084148

Effects of treatments to perennial ryegrass on the development of Septoria spp. in a subsequent crop of winter wheat.

A - Papers appearing in refereed journals

Jenkyn, J. F. and King, J. E. 1988. Effects of treatments to perennial ryegrass on the development of Septoria spp. in a subsequent crop of winter wheat. Plant Pathology. 37 (1), pp. 112-119. https://doi.org/10.1111/j.1365-3059.1988.tb02202.x

Effects of straw incorporation and cultivations on cereal diseases.

C1 - Edited contributions to conferences/learned societies

Jenkyn, J. F., Gutteridge, R. J. and Thomas, M. R. 1988. Effects of straw incorporation and cultivations on cereal diseases. Environmental aspects of applied biology. Aspects of Applied Biology 17(2).

Activity of triadimefon vapour against Erysiphe graminis f. sp. hordei .

A - Papers appearing in refereed journals

Jenkyn, J. F. and White, N. 1988. Activity of triadimefon vapour against Erysiphe graminis f. sp. hordei . Annals of Applied Biology - AAB. 113 (1), pp. 15-25. https://doi.org/10.1111/j.1744-7348.1988.tb03277.x

Straw residue management for autumn-sown cereals grown on a clay soil, 1979-1987

C2 - Non-edited contributions to conferences

Christian, D. G., Bacon, E. T. G., Jenkyn, J. F., Glen, D. M. and Gutteridge, R. J. 1988. Straw residue management for autumn-sown cereals grown on a clay soil, 1979-1987. Tillage and traffic in crop production. 11th International Conference. International Soil Tillage Research Organization, Edinburgh, 1988. Edinburgh : Scottish Centre for Agricultural Engineering. pp. 607-611

Contrast between sandy and clay soils in the effects of various factors on the growth, nitrogen uptake and yield of winter wheat in three years.

A - Papers appearing in refereed journals

Thorne, G. N., Welbank, P. J., Widdowson, F. V., Penny, A. and Todd, A. D. 1988. Contrast between sandy and clay soils in the effects of various factors on the growth, nitrogen uptake and yield of winter wheat in three years. The Journal of Agricultural Science. 110 (1), pp. 119-140. https://doi.org/10.1017/S0021859600079764

Variation between years in growth and nutrient uptake after anthesis of winter wheat on Broadbalk field at Rothamsted, 1969-84

A - Papers appearing in refereed journals

Thorne, G. N., Darby, R. J., Day, W., Lane, P. W., Welbank, P. J. and Widdowson, F. V. 1988. Variation between years in growth and nutrient uptake after anthesis of winter wheat on Broadbalk field at Rothamsted, 1969-84. The Journal of Agricultural Science. 110 (3), pp. 543-559. https://doi.org/10.1017/S0021859600082125

Amounts of NO3-N and NH4-N in soil, from autumn to spring, under winter wheat and their relationship to soil type, sowing date, previous crop and N uptake at Rothamsted, Woburn and Saxmundham, 1979-85.

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A., Darby, R. J., Bird, E. and Hewitt, M. V. 1987. Amounts of NO3-N and NH4-N in soil, from autumn to spring, under winter wheat and their relationship to soil type, sowing date, previous crop and N uptake at Rothamsted, Woburn and Saxmundham, 1979-85. The Journal of Agricultural Science. 108 (1), pp. 73-95. https://doi.org/10.1017/S0021859600064145

Tests of nitrification and of urease inhibitors, when applied with either solid or aqueous urea, on grass grown on a light sandy soil.

A - Papers appearing in refereed journals

Rodgers, G. A., Penny, A., Widdowson, F. V. and Hewitt, M. V. 1987. Tests of nitrification and of urease inhibitors, when applied with either solid or aqueous urea, on grass grown on a light sandy soil. The Journal of Agricultural Science. 108 (1), pp. 109-117. https://doi.org/10.1017/S0021859600064170

Recovery of 15N-labelled urea applied to the foliage of winter wheat.

A - Papers appearing in refereed journals

Powlson, D. S., Poulton, P. R., Penny, A. and Hewitt, M. V. 1987. Recovery of 15N-labelled urea applied to the foliage of winter wheat. Journal of the Science of Food and Agriculture. 41 (3), pp. 195-203. https://doi.org/10.1002/jsfa.2740410302

Some factors affecting the growth and yield of winter wheat grown as a third cereal with much or negligible take-all

A - Papers appearing in refereed journals

Prew, R. D., Beane, J., Carter, N., Church, B. M., Dewar, A. M., Lacey, J., Penny, A., Plumb, R. T., Thorne, G. N. and Todd, A. D. 1986. Some factors affecting the growth and yield of winter wheat grown as a third cereal with much or negligible take-all. The Journal of Agricultural Science. 107 (3), pp. 639-671. https://doi.org/10.1017/S0021859600069811

The effects of sowing date and other factors on growth, yield and nitrogen uptake, and on the incidence of pests and diseases, of winter barley at Rothamsted from 1981 to 1983.

A - Papers appearing in refereed journals

Widdowson, F. V., Darby, R. J., Dewar, A. M., Jenkyn, J. F., Kerry, B. R., Lawlor, D. W., Plumb, R. T., Ross, G. J. S., Scott, G. C., Todd, A. D. and Wood, D. W. 1986. The effects of sowing date and other factors on growth, yield and nitrogen uptake, and on the incidence of pests and diseases, of winter barley at Rothamsted from 1981 to 1983. The Journal of Agricultural Science. 106, pp. 551-574. https://doi.org/10.1017/S0021859600063437

The relationship of soil mineral NO3-N with NO3-N concentration, and of fertilizer -N with the amount of nitrogen taken up by winter wheat, in experiments testing nitrogen fertilizer in combination with aphicide and fungicides, from 1980 to 1982.

A - Papers appearing in refereed journals

Darby, R. J., Widdowson, F. V., Bird, E. and Hewitt, M. V. 1986. The relationship of soil mineral NO3-N with NO3-N concentration, and of fertilizer -N with the amount of nitrogen taken up by winter wheat, in experiments testing nitrogen fertilizer in combination with aphicide and fungicides, from 1980 to 1982. The Journal of Agricultural Science. 106, pp. 497-507. https://doi.org/10.1017/S0021859600063383

A comparison of the effects of prilled urea, used alone or with a nitrification or urease inhibitor, with those of 'Nitro-Chalk' on winter oil-seed rape.

A - Papers appearing in refereed journals

Rodgers, G. A., Penny, A. and Hewitt, M. V. 1986. A comparison of the effects of prilled urea, used alone or with a nitrification or urease inhibitor, with those of 'Nitro-Chalk' on winter oil-seed rape. The Journal of Agricultural Science. 106 (3), pp. 515-526. https://doi.org/10.1017/S0021859600063401

Some factors limiting the growth and yield of winter-wheat and their variation in 2 seasons

A - Papers appearing in refereed journals

Prew, R. D., Church, B. M., Dewar, A. M., Lacey, J., Magan, N., Penny, A., Plumb, R. T., Thorne, G. N., Todd, A. D. and Williams, T. D. 1985. Some factors limiting the growth and yield of winter-wheat and their variation in 2 seasons. The Journal of Agricultural Science. 104 (1), pp. 135-162. https://doi.org/10.1017/s0021859600043070

Tests of amounts and times of application of nitrogen and of sequential sprays of aphicide and fungicides on winter wheat, following either beans or wheat, and the effects of take-all (Gaeumannomyces graminis var. tritici ), on two varieties at Saxmundham, Suffolk 1980-3

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A., Gutteridge, R. J., Darby, R, J. and Hewitt, M. V. 1985. Tests of amounts and times of application of nitrogen and of sequential sprays of aphicide and fungicides on winter wheat, following either beans or wheat, and the effects of take-all (Gaeumannomyces graminis var. tritici ), on two varieties at Saxmundham, Suffolk 1980-3. The Journal of Agricultural Science. 105, pp. 97-122. https://doi.org/10.1017/S0021859600055775

Effects of nitrification inhibitors on uptakes of mineralised nitrogen and on yields of winter cereals grown on sandy soil after ploughing old grassland

A - Papers appearing in refereed journals

Rogers, G. A., Penny, A. and Hewitt, M. V. 1985. Effects of nitrification inhibitors on uptakes of mineralised nitrogen and on yields of winter cereals grown on sandy soil after ploughing old grassland. Journal of the Science of Food and Agriculture. 36 (10), pp. 915-924. https://doi.org/10.1002/jsfa.2740361003

Interference between plots in experiments with plant pathogens

C1 - Edited contributions to conferences/learned societies

Jenkyn, J. F. and Dyke, G. V. 1985. Interference between plots in experiments with plant pathogens. Field Trials Methods and Data Handling. Aspects of Applied Biology 10 . Association of Applied Biologists (AAB). pp. 75-85

The effect of sowing date and of leaching on soil nitrogen supply for winter wheat at Rothamsted and Woburn 1981

B - Book chapters etc edited externally

Widdowson, F. V., Penny, A., Darby, R. J. and Bird, E. 1984. The effect of sowing date and of leaching on soil nitrogen supply for winter wheat at Rothamsted and Woburn 1981. in: In : The nitrogen requirement of cereals : proceedings of a conference organised by ADAS September 1982 London HMSO. pp. 125-128

Experiments to examine the significance of ammonia evolution from barley seedlings infected with the powdery mildew fungus, Erysiphe graminis f.sp. hordei

A - Papers appearing in refereed journals

Jenkyn, J. F. and Finney, M. E. 1984. Experiments to examine the significance of ammonia evolution from barley seedlings infected with the powdery mildew fungus, Erysiphe graminis f.sp. hordei. The Journal of Agricultural Science. 102 (3), pp. 679-685. https://doi.org/10.1017/s0021859600042234

Comparisons between the establishment, growth and yield of winter-wheat on 3 clay soils, in experiments testing nitrogen-fertilizer in combination with aphicide and fungicides, from 1980 to 1982

A - Papers appearing in refereed journals

Darby, R. J., Widdowson, F. V. and Hewitt, M. V. 1984. Comparisons between the establishment, growth and yield of winter-wheat on 3 clay soils, in experiments testing nitrogen-fertilizer in combination with aphicide and fungicides, from 1980 to 1982. The Journal of Agricultural Science. 103 (DEC), pp. 595-611. https://doi.org/10.1017/s0021859600043720

Biological effectiveness of electrostatically charged rotary atomisers. II. Trials with cereals, 1982

A - Papers appearing in refereed journals

Arnold, A. J., Cayley, G. R., Dunne, Y., Etheridge, P., Griffiths, D. C., Jenkyn, J. F., Philips, F. T., Pye, B. J., Scott, G. C. and Woodcock, C. M. 1984. Biological effectiveness of electrostatically charged rotary atomisers. II. Trials with cereals, 1982. Annals of Applied Biology - AAB. 105 (2), pp. 361-367. https://doi.org/10.1111/j.1744-7348.1984.tb03060.x

Comparison of the effects of aqueous and of prilled urea, used alone or with urease or nitrification inhibitors, with those of ''Nitro-Chalk'' on ryegrass leys

A - Papers appearing in refereed journals

Rodgers, G. A., Widdowson, F. V., Penny, A. and Hewitt, M. V. 1984. Comparison of the effects of aqueous and of prilled urea, used alone or with urease or nitrification inhibitors, with those of ''Nitro-Chalk'' on ryegrass leys. The Journal of Agricultural Science. 103 (3), pp. 671-685. https://doi.org/10.1017/S0021859600063401

Effects of powdery mildew on grain filling in spring barley in contrasting environments

A - Papers appearing in refereed journals

Jenkyn, J. F. 1984. Effects of powdery mildew on grain filling in spring barley in contrasting environments. Annals of Applied Biology - AAB. 105 (2), pp. 195-212. https://doi.org/10.1111/j.1744-7348.1984.tb03044.x

Assessing the need of maincrop potatoes for late nitrogen by using isobutylidene di-urea by injecting nitrification inhibitors with aqueous N fertilizers and by dividing dressings of "Nitro-chalk"

A - Papers appearing in refereed journals

Penny, A., Addiscott, T. M. and Widdowson, F. V. 1984. Assessing the need of maincrop potatoes for late nitrogen by using isobutylidene di-urea by injecting nitrification inhibitors with aqueous N fertilizers and by dividing dressings of "Nitro-chalk". The Journal of Agricultural Science. 103 (3), pp. 577-585. https://doi.org/10.1017/S0021859600043707

The nitrogen requirement of cereals

A - Papers appearing in refereed journals

Widdowson, F. V. 1983. The nitrogen requirement of cereals. Journal of Soil Science. 385, pp. 97-103.

Effects of barley powdery mildew on grain filling in contrasting environments

C1 - Edited contributions to conferences/learned societies

Jenkyn, J. F. 1983. Effects of barley powdery mildew on grain filling in contrasting environments. Plant protection for human welfare: proceedings 10th International Congress of Plant Protection, Brighton, 20-25 November 1983. Volume 1. British Crop Protection Council (BCPC).

Relationship between n concentration of grain and grain-yield in recent winter-wheat experiments in England and Belgium, some with large yields

A - Papers appearing in refereed journals

Benzian, B., Darby, R. J., Lane, P., Widdowson, F. V. and Verstraeten, L. M. J. 1983. Relationship between n concentration of grain and grain-yield in recent winter-wheat experiments in England and Belgium, some with large yields. Journal of the Science of Food and Agriculture. 34 (7), pp. 685-695. https://doi.org/10.1002/jsfa.2740340704

Experiments with solid and liquid N-fertilizers and fungicides on winter wheat at Saxmundham, Suffolk, 1976–9

A - Papers appearing in refereed journals

Penny, A., Widdowson, F. V. and Jenkyn, J. F. 1983. Experiments with solid and liquid N-fertilizers and fungicides on winter wheat at Saxmundham, Suffolk, 1976–9. The Journal of Agricultural Science. 100 (1), pp. 163-173. https://doi.org/10.1017/s0021859600032573

Effects of several nitrification inhibitors, when injected with aqueous urea, on yields and nitrogen recoveries of ryegrass leys

A - Papers appearing in refereed journals

Rodgers, G. A., Widdowson, F. V., Penny, A. and Hewitt, M. V. 1983. Effects of several nitrification inhibitors, when injected with aqueous urea, on yields and nitrogen recoveries of ryegrass leys. The Journal of Agricultural Science. 101 (DEC), pp. 637-656. https://doi.org/10.1017/s0021859600038673

Effects of nitrogen fertilizer and tridemorph on mildew, growth and yield of spring barley 1975–7

A - Papers appearing in refereed journals

Jenkyn, J. F., Finney, M. E. and Dyke, G. V. 1983. Effects of nitrogen fertilizer and tridemorph on mildew, growth and yield of spring barley 1975–7. The Journal of Agricultural Science. 101 (3), pp. 517-546. https://doi.org/10.1017/s0021859600038557

Effects of fungicides and insecticides applied to spring barley sown on different dates in 1976-79

A - Papers appearing in refereed journals

Jenkyn, J. F. and Plumb, R. T. 1983. Effects of fungicides and insecticides applied to spring barley sown on different dates in 1976-79. Annals of Applied Biology - AAB. 102 (3), pp. 421-433. https://doi.org/10.1111/j.1744-7348.1983.tb02715.x

Effects of fungicide movement between plots in field experiments

A - Papers appearing in refereed journals

Jenkyn, J. F., Dyke, G. V. and Todd, A. D. 1983. Effects of fungicide movement between plots in field experiments. Plant Pathology. 32 (3), pp. 311-324. https://doi.org/10.1111/j.1365-3059.1983.tb02839.x

Effects of eight factors on the growth and nutrient-uptake of winter-wheat and on the incidence of pests and diseases

A - Papers appearing in refereed journals

Prew, R. D., Church, B. M., Dewar, A. M., Lacey, J., Penny, A., Plumb, R. T., Thorne, G. N., Todd, A. D. and Williams, T. D. 1983. Effects of eight factors on the growth and nutrient-uptake of winter-wheat and on the incidence of pests and diseases. The Journal of Agricultural Science. 100 (2), pp. 363-382. https://doi.org/10.1017/s0021859600033529

Results from the Woburn Reference Experiment, III. Yields of the Crops and Recoveries of N, P, K, and Mg from Manures and Soil, 1975-79

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Hewitt, M. V. 1982. Results from the Woburn Reference Experiment, III. Yields of the Crops and Recoveries of N, P, K, and Mg from Manures and Soil, 1975-79. Rothamsted Experimental Station Report. 1981 (2), pp. 5-21.

Maximising wheat yields, and some causes of yield variation

A - Papers appearing in refereed journals

Tinker, P. B. and Widdowson, F. V. 1982. Maximising wheat yields, and some causes of yield variation. Proceedings - Fertiliser Society, London. 211, pp. 149-184.

Results from factorial experiments testing amounts and times of granular N-fertilizer, late sprays of liquid N-fertilizer and fungicides to control mildew and brown rust on two varieties of spring barley at Saxmundham, Suffolk 1975–8

A - Papers appearing in refereed journals

Widdowson, F. V., Jenkyn, J. F. and Penny, A. 1982. Results from factorial experiments testing amounts and times of granular N-fertilizer, late sprays of liquid N-fertilizer and fungicides to control mildew and brown rust on two varieties of spring barley at Saxmundham, Suffolk 1975–8. The Journal of Agricultural Science. 99 (2), pp. 377-390. https://doi.org/10.1017/s0021859600030173

Results from an experiment on permanent grass evaluating the cumulative effects of aqueous urea, injected alone or with a nitrification inhibitor, with those of nitro-chalk

A - Papers appearing in refereed journals

Ashworth, J., Widdowson, F. V., Penny, A., Gibbs, A. J., Hodgkinson, R. A. and Hewitt, M. V. 1982. Results from an experiment on permanent grass evaluating the cumulative effects of aqueous urea, injected alone or with a nitrification inhibitor, with those of nitro-chalk. The Journal of Agricultural Science. 98 (FEB), pp. 141-154. https://doi.org/10.1017/s0021859600041216

Fungicides, fertilizers and sowing date

B - Book chapters etc edited externally

Jenkyn, J. F. and Finney, M. E. 1981. Fungicides, fertilizers and sowing date. in: Jenkyn, J. F. and Plumb, R. T. (ed.) Strategies for the control of cereal disease Oxford Blackwell Publishing. pp. 179-188

Results from the Rothamsted Reference Experiment II. Yields of the Crops and Recoveries of N, P and K from Manures and Soil, 1971-75

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Bird, E. 1980. Results from the Rothamsted Reference Experiment II. Yields of the Crops and Recoveries of N, P and K from Manures and Soil, 1971-75. Rothamsted Experimental Station Report. 1979 (2), pp. 63-75.

Results from the Rothamsted reference experiment II Yields of the crops and recoveries of N, P and K from manures and soil 1971-1975

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Bird, E. 1980. Results from the Rothamsted reference experiment II Yields of the crops and recoveries of N, P and K from manures and soil 1971-1975. Rothamsted Experimental Station Report. 1979 (2), pp. 63-75.

Multifactorial experimentation on continuous winter-wheat grown in sandy clay soil at Saxmundham, Suffolk

A - Papers appearing in refereed journals

Widdowson, F. V., Johnston, A. E. and Penny, A. 1980. Multifactorial experimentation on continuous winter-wheat grown in sandy clay soil at Saxmundham, Suffolk. The Journal of Agricultural Science. 94 (FEB), pp. 155-170. https://doi.org/10.1017/s002185960002801x

The influence of cultural-factors and mildew on yield of winter barley

A - Papers appearing in refereed journals

Bainbridge, A., Finney, M. E. and Jenkyn, J. F. 1980. The influence of cultural-factors and mildew on yield of winter barley. The Journal of Agricultural Science. 94 (2), pp. 389-397. https://doi.org/10.1017/s0021859600029002

An experiment begun in 1958 measuring effects of n, p and k fertilizers on yield and n, p and k contents of grass .2. Residual effects on arable crops, 1968-76

A - Papers appearing in refereed journals

Penny, A., Widdowson, F. V. and Williams, R. J. B. 1980. An experiment begun in 1958 measuring effects of n, p and k fertilizers on yield and n, p and k contents of grass .2. Residual effects on arable crops, 1968-76. The Journal of Agricultural Science. 95 (DEC), pp. 583-595. https://doi.org/10.1017/s0021859600087992

An experiment begun in 1958 measuring effects of n, p and k fertilizers on yield and n, p and k contents of grass .1. Effects during 1964-7

A - Papers appearing in refereed journals

Penny, A., Widdowson, F. V. and Williams, R. J. B. 1980. An experiment begun in 1958 measuring effects of n, p and k fertilizers on yield and n, p and k contents of grass .1. Effects during 1964-7. The Journal of Agricultural Science. 95 (DEC), pp. 575-582. https://doi.org/10.1017/s0021859600087980

The effects of injecting nitrapyrin (n-serve), carbon disulphide or trithiocarbonates, with aqueous ammonia, on yield and percent-n of grass

A - Papers appearing in refereed journals

Ashworth, J., Penny, A., Widdowson, F. V. and Briggs, G. G. 1980. The effects of injecting nitrapyrin (n-serve), carbon disulphide or trithiocarbonates, with aqueous ammonia, on yield and percent-n of grass. Journal of the Science of Food and Agriculture. 31 (3), pp. 229-237. https://doi.org/10.1002/jsfa.2740310303

Results from the Woburn Reference Experiment II. Yields of the Crops and Recoveries of N, P, K and Mg from Manures and Soil, 1970-74

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1979. Results from the Woburn Reference Experiment II. Yields of the Crops and Recoveries of N, P, K and Mg from Manures and Soil, 1970-74. Rothamsted Experimental Station Report. 1978 (2), pp. 67-82.

Investigation into inter-plot interactions, in experiments with mildew on barley, using balanced designs

A - Papers appearing in refereed journals

Jenkyn, J. F., Bainbridge, A., Dyke, G. V. and Todd, A. D. 1979. Investigation into inter-plot interactions, in experiments with mildew on barley, using balanced designs. Annals of Applied Biology - AAB. 92 (1), pp. 11-28. https://doi.org/10.1111/j.1744-7348.1979.tb02954.x

Field evaluation of pesticides: the changing scene

C1 - Edited contributions to conferences/learned societies

Jenkyn, J. F. and Griffiths, D. C. 1978. Field evaluation of pesticides: the changing scene. 9th British Insecticide and Fungicide Conference. Hotel Metropole, Brighton, UK 21 Nov 1977 British Crop Protection Council (BCPC).

Spring top-dressings of ‘Nitro-Chalk’ and late sprays of a liquid N-fertilizer and a broad spectrum fungicide for consecutive crops of winter wheat at Saxmundham, Suffolk

A - Papers appearing in refereed journals

Penny, A., Widdowson, F. V. and Jenkyn, J. F. 1978. Spring top-dressings of ‘Nitro-Chalk’ and late sprays of a liquid N-fertilizer and a broad spectrum fungicide for consecutive crops of winter wheat at Saxmundham, Suffolk. The Journal of Agricultural Science. 90 (3), pp. 509-516. https://doi.org/10.1017/s0021859600056021

Longevity of sodium, potassium and magnesium fertilizer residual effects on yield and composition of ryegrass grown on a sandy soil

A - Papers appearing in refereed journals

Bolton, J. and Penny, A. 1978. Longevity of sodium, potassium and magnesium fertilizer residual effects on yield and composition of ryegrass grown on a sandy soil. The Journal of Agricultural Science. 91 (3), pp. 693-699. https://doi.org/10.1017/s0021859600060093

Effects of pesticides on a perennial ryegrass sward

A - Papers appearing in refereed journals

Plumb, R. T., Jenkyn, J. F. and Broom, E. W. 1978. Effects of pesticides on a perennial ryegrass sward. Plant Pathology. 27 (4), pp. 151-159. https://doi.org/10.1111/j.1365-3059.1978.tb01107.x

Effects of chemical treatments for mildew control at different times on growth and yield of spring barley

A - Papers appearing in refereed journals

Jenkyn, J. F. 1978. Effects of chemical treatments for mildew control at different times on growth and yield of spring barley. Annals of Applied Biology - AAB. 88 (3), pp. 369-376. https://doi.org/10.1111/j.1744-7348.1978.tb00727.x

Nitrogen and leaf diseases of spring barley

C1 - Edited contributions to conferences/learned societies

Jenkyn, J. F. 1977. Nitrogen and leaf diseases of spring barley. Proceedings of the 12th Colloquium of the International Potash Institute held in Izmir/Turkey 1976. Izmir, Turkey International Potash Institute.

Results from an experiment on permanent grass evaluating aqueous ammonia and aqueous urea, injected in bands either 30 or 60 cm apart

A - Papers appearing in refereed journals

Penny, A., Widdowson, F. V. and Ashworth, J. 1977. Results from an experiment on permanent grass evaluating aqueous ammonia and aqueous urea, injected in bands either 30 or 60 cm apart. The Journal of Agricultural Science. 88 (APR), pp. 319-331. https://doi.org/10.1017/s0021859600034821

Results from two sets of experiments with spring barley, first comparing injected with broadcast nitrogen granules, second comparing injected and combine-drilled NPK solutions with broadcast NPK granules

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1977. Results from two sets of experiments with spring barley, first comparing injected with broadcast nitrogen granules, second comparing injected and combine-drilled NPK solutions with broadcast NPK granules. The Journal of Agricultural Science. 88 (FEB), pp. 35-45. https://doi.org/10.1017/s0021859600033748

Observations on the origins of Septoria nodorum infection of winter wheat

A - Papers appearing in refereed journals

Jenkyn, J. F. and King, J. E. 1977. Observations on the origins of Septoria nodorum infection of winter wheat. Plant Pathology. 26 (4), pp. 153-160. https://doi.org/10.1111/j.1365-3059.1977.tb01053.x

Interference between plots as a source of error in experiments with erysiphe-graminis

A - Papers appearing in refereed journals

Jenkyn, J. F. 1977. Interference between plots as a source of error in experiments with erysiphe-graminis. Pesticide Science. 8 (4), pp. 428-429. https://doi.org/10.1002/ps.2780080421

Experiments evaluating aqueous ammonia, aqueous urea and a solution of ammonium-nitrate and urea as nitrogenous fertilizers for winter-wheat

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1977. Experiments evaluating aqueous ammonia, aqueous urea and a solution of ammonium-nitrate and urea as nitrogenous fertilizers for winter-wheat. The Journal of Agricultural Science. 89 (OCT), pp. 415-424. https://doi.org/10.1017/s0021859600028343

Effects of fungicides and insecticides on mildew, viruses and root yield of swedes

A - Papers appearing in refereed journals

Jenkyn, J. F. and Rawlinson, C. J. 1977. Effects of fungicides and insecticides on mildew, viruses and root yield of swedes. Plant Pathology. 26 (4), pp. 166-174. https://doi.org/10.1111/j.1365-3059.1977.tb01055.x

Results from two barley experiments at Saxmundham, Suffolk, measuring effects of the fungicide benodanil on three varieties, given three amounts of nitrogen at two times 1973–4

A - Papers appearing in refereed journals

Widdowson, F. V., Jenkyn, J. F. and Penny, A. 1976. Results from two barley experiments at Saxmundham, Suffolk, measuring effects of the fungicide benodanil on three varieties, given three amounts of nitrogen at two times 1973–4. The Journal of Agricultural Science. 86 (2), pp. 271-280. https://doi.org/10.1017/s0021859600054721

Pathogens occurring on ten varieties of ryegrass at Rothamsted in 1973-1974

A - Papers appearing in refereed journals

Plumb, R. T., Jenkyn, J. F. and Bowen, R. 1976. Pathogens occurring on ten varieties of ryegrass at Rothamsted in 1973-1974. Journal of the British Grassland Society. 31 (2), pp. 65-67. https://doi.org/10.1111/j.1365-2494.1976.tb01119.x

Observations on mildew development in winter cereals: 1968-73

A - Papers appearing in refereed journals

Jenkyn, J. F. 1976. Observations on mildew development in winter cereals: 1968-73. Plant Pathology. 25 (1), pp. 34-43. https://doi.org/10.1111/j.1365-3059.1976.tb01912.x

Mildew reinfection in adjacent and separated plots of sprayed barley

A - Papers appearing in refereed journals

Bainbridge, A. and Jenkyn, J. F. 1976. Mildew reinfection in adjacent and separated plots of sprayed barley. Annals of Applied Biology - AAB. 82 (3), pp. 477-484. https://doi.org/10.1111/j.1744-7348.1976.tb00584.x

Effects of mildew (Erysiphe graminis) on green leaf area of Zephyr spring barley, 1973

A - Papers appearing in refereed journals

Jenkyn, J. F. 1976. Effects of mildew (Erysiphe graminis) on green leaf area of Zephyr spring barley, 1973. Annals of Applied Biology - AAB. 82 (3), pp. 485-488. https://doi.org/10.1111/j.1744-7348.1976.tb00585.x

Results from experiments measuring effects of large amounts of an npk fertilizer on yield, tuber size and n, p and k contents of 3 potato varieties

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1975. Results from experiments measuring effects of large amounts of an npk fertilizer on yield, tuber size and n, p and k contents of 3 potato varieties. The Journal of Agricultural Science. 85 (DEC), pp. 515-525. https://doi.org/10.1017/s0021859600062390

Results from two experiments with winter wheat, comparing top-dressings of a liquid N-fertilizer either alone or with added herbicide or mildew fungicide or both, and of 'Nitro-Chalk' without or with herbicide or fungicide or both

A - Papers appearing in refereed journals

Penny, A. and Jenkyn, J. F. 1975. Results from two experiments with winter wheat, comparing top-dressings of a liquid N-fertilizer either alone or with added herbicide or mildew fungicide or both, and of 'Nitro-Chalk' without or with herbicide or fungicide or both. The Journal of Agricultural Science. 85 (3), pp. 533-539. https://doi.org/10.1017/s0021859600062419

Effects of potato cyst nematodes on potato plants .4. Effects of fertilizers and heterodera-rostochiensis on yield of 2 susceptible varieties

A - Papers appearing in refereed journals

Trudgill, D. L., Parrott, D. M., Evans, K. and Widdowson, F. V. 1975. Effects of potato cyst nematodes on potato plants .4. Effects of fertilizers and heterodera-rostochiensis on yield of 2 susceptible varieties. Nematologica. 21 (3), pp. 281-286. https://doi.org/10.1163/187529275x00031

Effect of ethirimol seed dressings on yield of spring barley grown with different amounts of nitrogen fertilizer 1969-71

A - Papers appearing in refereed journals

Jenkyn, J. F. and Moffatt, J. R. 1975. Effect of ethirimol seed dressings on yield of spring barley grown with different amounts of nitrogen fertilizer 1969-71. Plant Pathology. 24 (1), pp. 16-21. https://doi.org/10.1111/j.1365-3059.1975.tb01851.x

The effect of benomyl sprays on Sclerotinia trifoliorum and yield of red clover

A - Papers appearing in refereed journals

Jenkyn, J. F. 1975. The effect of benomyl sprays on Sclerotinia trifoliorum and yield of red clover. Annals of Applied Biology - AAB. 81 (3), pp. 419-423. https://doi.org/10.1111/j.1744-7348.1975.tb01660.x

Seasonal changes in infection of barley seedlings by Erysiphe graminis f.sp. hordei

A - Papers appearing in refereed journals

Jenkyn, J. F. 1974. Seasonal changes in infection of barley seedlings by Erysiphe graminis f.sp. hordei. Annals of Applied Biology - AAB. 78 (3), pp. 289-293. https://doi.org/10.1111/j.1744-7348.1974.tb01508.x

Results from experiments with winter-wheat, spring barley and grass, comparing a liquid N-fertilizer either alone or with added herbicide and top-dressings of nitro-chalk without or with herbicide sprayed alone

A - Papers appearing in refereed journals

Penny, A. and Freeman, S. C. R. 1974. Results from experiments with winter-wheat, spring barley and grass, comparing a liquid N-fertilizer either alone or with added herbicide and top-dressings of nitro-chalk without or with herbicide sprayed alone. The Journal of Agricultural Science. 83 (3), pp. 511-529. https://doi.org/10.1017/s0021859600027003

Results from experiments measuring residues of nitrogen fertilizer given for sugar-beet, and of ploughed-in sugar-beet tops, on yield of following barley

A - Papers appearing in refereed journals

Widdowson, F. V. 1974. Results from experiments measuring residues of nitrogen fertilizer given for sugar-beet, and of ploughed-in sugar-beet tops, on yield of following barley. The Journal of Agricultural Science. 83 (DEC), pp. 415-421. https://doi.org/10.1017/s0021859600026885

Results from experiments measuring effects of large amounts of fertilizer and of farmyard manure on main-crop potatoes grown in sandy soil at Woburn, Bedfordshire

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Flint, R. C. 1974. Results from experiments measuring effects of large amounts of fertilizer and of farmyard manure on main-crop potatoes grown in sandy soil at Woburn, Bedfordshire. The Journal of Agricultural Science. 82 (FEB), pp. 117-127. https://doi.org/10.1017/s0021859600050292

Effects of mildew on the growth and yield of spring barley: 1969‐72

A - Papers appearing in refereed journals

Jenkyn, J. F. 1974. Effects of mildew on the growth and yield of spring barley: 1969‐72. Annals of Applied Biology - AAB. 78 (3), pp. 281-288. https://doi.org/10.1111/j.1744-7348.1974.tb01507.x

Disease gradients and small plot experiments on barley mildew

A - Papers appearing in refereed journals

Jenkyn, J. F. and Bainbridge, A. 1974. Disease gradients and small plot experiments on barley mildew. Annals of Applied Biology - AAB. 76 (3), pp. 269-279. https://doi.org/10.1111/j.1744-7348.1974.tb01367.x

A comparison of seasonal changes in deposition of spores of Erysiphe graminis on different trapping surfaces

A - Papers appearing in refereed journals

Jenkyn, J. F. 1974. A comparison of seasonal changes in deposition of spores of Erysiphe graminis on different trapping surfaces. Annals of Applied Biology - AAB. 76 (3), pp. 257-267. https://doi.org/10.1111/j.1744-7348.1974.tb01366.x

Yields and N, P and K Contents of the Crops Grown in the Rothamsted Reference Experiment, 1956-70,

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1973. Yields and N, P and K Contents of the Crops Grown in the Rothamsted Reference Experiment, 1956-70, . Rothamsted Experimental Station Report. 1972 (2), pp. 111-130.

Results from experiments with wheat and barley measuring the effects of paths on yield

A - Papers appearing in refereed journals

Widdowson, F. V. 1973. Results from experiments with wheat and barley measuring the effects of paths on yield. Experimental husbandry. 23, pp. 16-20.

Seasonal changes in incubation time of Erysiphe graminis f.sp. hordei

A - Papers appearing in refereed journals

Jenkyn, J. F. 1973. Seasonal changes in incubation time of Erysiphe graminis f.sp. hordei. Annals of Applied Biology - AAB. 73 (1), pp. 15-18. https://doi.org/10.1111/j.1744-7348.1973.tb01304.x

Results from experiments comparing aqueous and anhydrous ammonia with nitrochalk for grass cut for silage

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Flint, R. C. 1973. Results from experiments comparing aqueous and anhydrous ammonia with nitrochalk for grass cut for silage. The Journal of Agricultural Science. 81 (DEC), pp. 465-480. https://doi.org/10.1017/s0021859600086524

The effect of fungicides on incidence of Sporobolomyces spp. and Cladosporium spp. on flag leaves of winter wheat

A - Papers appearing in refereed journals

Jenkyn, J. F. and Prew, R. D. 1973. The effect of fungicides on incidence of Sporobolomyces spp. and Cladosporium spp. on flag leaves of winter wheat. Annals of Applied Biology - AAB. 75 (2), pp. 253-256. https://doi.org/10.1111/j.1744-7348.1973.tb07305.x

An apparatus for the isolated propagation of foliar pathogens and their hosts

A - Papers appearing in refereed journals

Jenkyn, J. F., Hirst, J. M. and King, G. 1973. An apparatus for the isolated propagation of foliar pathogens and their hosts. Annals of Applied Biology - AAB. 73 (1), pp. 9-13. https://doi.org/10.1111/j.1744-7348.1973.tb01303.x

Activity of six fungicides against cereal foliage and root diseases

A - Papers appearing in refereed journals

Jenkyn, J. F. and Prew, R. D. 1973. Activity of six fungicides against cereal foliage and root diseases. Annals of Applied Biology - AAB. 75 (2), pp. 241-252. https://doi.org/10.1111/j.1744-7348.1973.tb07304.x

Results from the Woburn Reference Experiment, 1960-1969

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1972. Results from the Woburn Reference Experiment, 1960-1969. Rothamsted Experimental Station Report. 1971 (2), pp. 69-94.

Results from an experiment comparing aqueous ammonia with Nitro-Chalk for grazed grass

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Flint, R. C. 1972. Results from an experiment comparing aqueous ammonia with Nitro-Chalk for grazed grass. The Journal of Agricultural Science. 79 (2), pp. 341-348. https://doi.org/10.1017/S0021859600032330

Results from barley experiments comparing aqueous ammonia and aqueous urea with ammonium nitrate, and also liquid with granular NPK fertilizers

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Flint, R. C. 1972. Results from barley experiments comparing aqueous ammonia and aqueous urea with ammonium nitrate, and also liquid with granular NPK fertilizers. The Journal of Agricultural Science. 79 (2), pp. 349-361. https://doi.org/10.1017/S0021859600032342

Manuring potatoes

A - Papers appearing in refereed journals

Widdowson, F. V. 1971. Manuring potatoes. Handbook on farm crop production - Potatoes Shell Star Ltd. 3, p. pp16.

Evaluation of phosphate fertilizers. III. Immediate and residual values of potassium metaphosphate and magnesium ammonium phosphate for potatoes, radishes, barley and ryegrass

A - Papers appearing in refereed journals

Mattingly, G. E. G., Penny, A. and Blakemore, M. 1971. Evaluation of phosphate fertilizers. III. Immediate and residual values of potassium metaphosphate and magnesium ammonium phosphate for potatoes, radishes, barley and ryegrass. The Journal of Agricultural Science. 76, pp. 131-141. https://doi.org/10.1017/S0021859600015677

The Agdell experiment - Estimates of the P and K accumulated from fertiliser dressings given between 1848-1951 their recovery by grass between 1958 and 1970 and their effect on the response by grass to new dressings of P and K

A - Papers appearing in refereed journals

Johnston, A. E. and Penny, A. 1971. The Agdell experiment - Estimates of the P and K accumulated from fertiliser dressings given between 1848-1951 their recovery by grass between 1958 and 1970 and their effect on the response by grass to new dressings of P and K. Rothamsted Experimental Station Report. 1970 (2), pp. 38-68.

The Effects of Partially Sterilising Agricultural Soils With Formalin, and of Applying Nitrogen Fertilisers, on the Yields and N Contents of Spring and Winter Wheat, of Barley and of Grass

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1970. The Effects of Partially Sterilising Agricultural Soils With Formalin, and of Applying Nitrogen Fertilisers, on the Yields and N Contents of Spring and Winter Wheat, of Barley and of Grass. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 113-134. https://doi.org/10.23637/ERADOC-1-34866

Anhydrous ammonia-yields and recoveries by spring wheat.

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1970. Anhydrous ammonia-yields and recoveries by spring wheat. Anhydrous Ammonia. Proceedings of a Symposium on Aspects of its Technology and Use as a Fertilizer.. pp. 61-66.

The effects of three crops and of the N fertilizer given to them on the yield of following barley

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1970. The effects of three crops and of the N fertilizer given to them on the yield of following barley. The Journal of Agricultural Science. 74 (3), pp. 511-522. https://doi.org/10.1017/S0021859600017639

The value of residues from long-period manuring at Rothamsted and Woburn IV The value to arable crops of residues accumulated from superphosphate

A - Papers appearing in refereed journals

Johnston, A. E., Warren, R. G. and Penny, A. 1970. The value of residues from long-period manuring at Rothamsted and Woburn IV The value to arable crops of residues accumulated from superphosphate. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 39-68. https://doi.org/10.23637/ERADOC-1-34863

The value of residues from long-period manuring at Rothamsted and Woburn V The value to arable crops of residues accumulated from potassium fertilizers

A - Papers appearing in refereed journals

Johnston, A. E., Warren, R. G. and Penny, A. 1970. The value of residues from long-period manuring at Rothamsted and Woburn V The value to arable crops of residues accumulated from potassium fertilizers. Rothamsted Experimental Station Report. 1969 (Part 2), pp. 69-90. https://doi.org/10.23637/ERADOC-1-34864

Effects on barley and kale of NPK fertilizers containing differing proportions of urea and ammonium nitrate, and either triple superphosphate or mono-urea phosphate

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1969. Effects on barley and kale of NPK fertilizers containing differing proportions of urea and ammonium nitrate, and either triple superphosphate or mono-urea phosphate. The Journal of Agricultural Science. 73 (1), pp. 125-132. https://doi.org/10.1017/S0021859600024205

Why starve grass ?

A - Papers appearing in refereed journals

Widdowson, F. V. 1968. Why starve grass ? Dairy Farmer. (supplement).

Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops and permanent grass III. Yields 1961–1965

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1968. Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops and permanent grass III. Yields 1961–1965. The Journal of Agricultural Science. 70 (1), pp. 53-58. https://doi.org/10.1017/S0021859600017184

The effects of potassium and magnesium fertilizers on yield and composition of successive crops of ryegrass, clover, sugar beet, potatoes, kale and barley on sandy soil at Woburn

A - Papers appearing in refereed journals

Bolton, J. and Penny, A. 1968. The effects of potassium and magnesium fertilizers on yield and composition of successive crops of ryegrass, clover, sugar beet, potatoes, kale and barley on sandy soil at Woburn. Journal of the Science of Food and Agriculture. 70 (3), pp. 303-311. https://doi.org/10.1017/S0021859600012624

Evaluation of phosphate fertilizers I. Immediate value of dicalcium phosphate, nitrophosphates, Gafsa rock phosphate, basic slag and potassium metaphosphate for barley and ryegrass

A - Papers appearing in refereed journals

Mattingly, G. E. G. and Penny, A. 1968. Evaluation of phosphate fertilizers I. Immediate value of dicalcium phosphate, nitrophosphates, Gafsa rock phosphate, basic slag and potassium metaphosphate for barley and ryegrass. The Journal of Agricultural Science. 70, pp. 131-138.

Results of an experiment at Woburn testing farmyard manure and N, P and K fertilizers on five arable crops and a long ley: I. Yields

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1967. Results of an experiment at Woburn testing farmyard manure and N, P and K fertilizers on five arable crops and a long ley: I. Yields. The Journal of Agricultural Science. 68 (1), pp. 95-102. https://doi.org/10.1017/S0021859600017901

Experiments comparing the effects on yields of potatoes of three methods of applying three amounts of NPK fertilizer and the residual effects on following winter wheat

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1967. Experiments comparing the effects on yields of potatoes of three methods of applying three amounts of NPK fertilizer and the residual effects on following winter wheat. The Journal of Agricultural Science. 69 (2), pp. 247-257. https://doi.org/10.1017/S0021859600018657

Experiments measuring effects of ammonium and nitrate fertilizers, with and without sodium and potassium, on spring barley

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1967. Experiments measuring effects of ammonium and nitrate fertilizers, with and without sodium and potassium, on spring barley. The Journal of Agricultural Science. 69 (2), pp. 197-207. https://doi.org/10.1017/S0021859600018591

Results of an experiment at Woburn testing farmyard manure and N, P and K fertilizers on five arable crops and on a long ley: II. N, P and K removed by the crops

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1967. Results of an experiment at Woburn testing farmyard manure and N, P and K fertilizers on five arable crops and on a long ley: II. N, P and K removed by the crops. The Journal of Agricultural Science. 68 (2), pp. 293-300. https://doi.org/10.1017/S0021859600016361

The value of urea nitrate and urea phosphate as nitrogen fertilizers for grass and barley

A - Papers appearing in refereed journals

Gasser, J. K. R. and Penny, A. 1967. The value of urea nitrate and urea phosphate as nitrogen fertilizers for grass and barley. The Journal of Agricultural Science. 67 (1), pp. 139-146. https://doi.org/10.1017/S0021859600016555

An experiment measuring effects of N, P and K fertilizers on yield and N, P and K contents of grazed grass

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1966. An experiment measuring effects of N, P and K fertilizers on yield and N, P and K contents of grazed grass. The Journal of Agricultural Science. 67 (1), pp. 121-128. https://doi.org//10.1017/S0021859600067654

Ammonia as a fertiliser

A - Papers appearing in refereed journals

Gasser, J. K. R. and Widdowson, F. V. 1966. Ammonia as a fertiliser. Journal of the Institute of Corn and Agricultural Merchants - ICAM. (Winter), pp. 1-4.

Experiments measuring the residual effects of nitrogen fertilizers

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1965. Experiments measuring the residual effects of nitrogen fertilizers. The Journal of Agricultural Science. 65 (2), pp. 195-200. https://doi.org/10.1017/S002185960008391X

An experiment measuring effects of N, P and K fertilizers on yield and N, P and K contents of grass

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1965. An experiment measuring effects of N, P and K fertilizers on yield and N, P and K contents of grass. The Journal of Agricultural Science. 64 (1), pp. 93-100. https://doi.org/10.1017/S0021859600010522

Experiments comparing concentrated and dilute NPK fertilizers and four nitrogen fertilizers on a range of crops

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1965. Experiments comparing concentrated and dilute NPK fertilizers and four nitrogen fertilizers on a range of crops. The Journal of Agricultural Science. 65 (1), pp. 45-55. https://doi.org/10.1017/S002185960008535X

An experiment comparing responses to nitrogen fertilizer of four grass species Part II Residual effects in wheat and barley

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1964. An experiment comparing responses to nitrogen fertilizer of four grass species Part II Residual effects in wheat and barley. Experimental husbandry. 11, pp. 22-30.

Experiments comparing liquid and solid fertilisers for grass and kale

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1964. Experiments comparing liquid and solid fertilisers for grass and kale. Experimental husbandry. 10, pp. 97-100.

Experiments comparing broadcast and combine drilled dressings of several NPK fertilizers for spring barley

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1964. Experiments comparing broadcast and combine drilled dressings of several NPK fertilizers for spring barley. Experimental husbandry. 14, pp. 83-97.

Experiments testing P and K fertilizers on lucerne 1952-1957

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1964. Experiments testing P and K fertilizers on lucerne 1952-1957. Experimental husbandry. 10, pp. 39-45.

Side-placing urea and other nitrogen fertilizers for spring barley

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1964. Side-placing urea and other nitrogen fertilizers for spring barley. The Journal of Agricultural Science. 62 (1), pp. 73-82. https://doi.org/10.1017/S0021859600059803

An experiment comparing responses to nitrogen fertilizer of four grass species

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1963. An experiment comparing responses to nitrogen fertilizer of four grass species. Experimental husbandry. 9, pp. 28-36.

Experiments comparing yield, and residual effects on winter wheat, of 1-year clover, rye-grass and clover-rye-grass leys

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1963. Experiments comparing yield, and residual effects on winter wheat, of 1-year clover, rye-grass and clover-rye-grass leys. The Journal of Agricultural Science. 61 (3), pp. 397-408. https://doi.org/10.1017/S0021859600018128

Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops I. Yields

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Cooke, G. W. 1963. Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops I. Yields. The Journal of Agricultural Science. 60 (3), pp. 347-352. https://doi.org/10.1017/S002185960001193X

Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops II. Nutrients removed by crops

A - Papers appearing in refereed journals

Williams, R. J. B., Cooke, G. W. and Widdowson, F. V. 1963. Results of an experiment at Rothamsted testing farmyard manure and N, P and K fertilizers on five arable crops II. Nutrients removed by crops. The Journal of Agricultural Science. 60 (3), pp. 353-357. https://doi.org/10.1017/S0021859600011941

Residual value of superphosphate and rock phosphate on an acid soil I. Yields and phosphorus uptakes in the field

A - Papers appearing in refereed journals

Mattingly, G. E. G. and Widdowson, F. V. 1963. Residual value of superphosphate and rock phosphate on an acid soil I. Yields and phosphorus uptakes in the field. The Journal of Agricultural Science. 60 (3), pp. 399-407. https://doi.org/10.1017/S0021859600012004

Applying fertilizers for spring barley

A - Papers appearing in refereed journals

Widdowson, F. V. 1962. Applying fertilizers for spring barley. Annals of Applied Biology - AAB. 50 (2), pp. 356-360. https://doi.org/10.1111/j.1744-7348.1962.tb06029.x

Experiments with nitrogen and potash on potatoes

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1962. Experiments with nitrogen and potash on potatoes. Experimental husbandry. 8, pp. 30-39.

An experiment comparing urea-formaldehyde fertilizer with nitro-chalk for Italian ryegrass

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1962. An experiment comparing urea-formaldehyde fertilizer with nitro-chalk for Italian ryegrass. The Journal of Agricultural Science. 59 (2), pp. 263-268. https://doi.org/10.1017/S002185960001529X

Applying nitrogen fertilizers for spring barley

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1961. Applying nitrogen fertilizers for spring barley. The Journal of Agricultural Science. 56 (1), pp. 39-47. https://doi.org/10.1017/S0021859600023789

Autumn nitrogen for winter wheat

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1961. Autumn nitrogen for winter wheat. The Journal of Agricultural Science. 57 (3), pp. 329-334. https://doi.org/10.1017/S0021859600049297

Experiments with nitrogen and potash on barley

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Williams, R. J. B. 1961. Experiments with nitrogen and potash on barley. The Journal of Agricultural Science. 57 (1), pp. 29-33. https://doi.org/10.1017/S0021859600049972

Fertilizer placement

A - Papers appearing in refereed journals

Widdowson, F. V. 1960. Fertilizer placement. NAAS Quarterly Review. 48, pp. 147-150.

Experiments with urea on spring barley.

A - Papers appearing in refereed journals

Widdowson, F. V. and Penny, A. 1960. Experiments with urea on spring barley. Experimental husbandry. 5, pp. 22-26.

Comparisons of casein and formalized casein with ammonium sulphate, calcium nitrate and urea for Italian ryegrass

A - Papers appearing in refereed journals

Widdowson, F. V. and Shaw, K. 1960. Comparisons of casein and formalized casein with ammonium sulphate, calcium nitrate and urea for Italian ryegrass. The Journal of Agricultural Science. 55 (1), pp. 53-59. https://doi.org/10.1017/S0021859600021602

The value of calcium nitrate and urea for main-crop potatoes and kale

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A., Williams, R. J. B. and Cooke, G. W. 1960. The value of calcium nitrate and urea for main-crop potatoes and kale. The Journal of Agricultural Science. 55 (1), pp. 1-10. https://doi.org/10.1017/S0021859600021560

Effects of fertilisers and farmyard manure on the copper, manganese, molybdenum and zinc removed by arable crops at Rothamsted

A - Papers appearing in refereed journals

Williams, R. J. B., Stojkovska, A., Cooke, G. W. and Widdowson, F. V. 1960. Effects of fertilisers and farmyard manure on the copper, manganese, molybdenum and zinc removed by arable crops at Rothamsted. Journal of the Science of Food and Agriculture. 11 (10), pp. 570-575. https://doi.org/10.1002/jsfa.2740111004

The value of calcium nitrate and urea for spring-sown cereals

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A., Williams, R. J. B. and Cooke, G. W. 1959. The value of calcium nitrate and urea for spring-sown cereals. The Journal of Agricultural Science. 52 (2), pp. 200-206. https://doi.org/10.1017/S0021859600036698

The effects of nitrogen upon three stiff-strawed winter wheat varieties

A - Papers appearing in refereed journals

Widdowson, F. V. 1959. The effects of nitrogen upon three stiff-strawed winter wheat varieties . The Journal of Agricultural Science. 53 (1), pp. 17-24. https://doi.org/10.1017/S0021859600030872

Field experiments on phosphate fertilizers. A joint investigation

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1959. Field experiments on phosphate fertilizers. A joint investigation. The Journal of Agricultural Science. 53 (1), pp. 46-63. https://doi.org/10.1017/S0021859600030914

Comparisons between combine-drilling and broadcasting muriate of potash for spring barley

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A., Williams, R. J. B. and Cooke, G. W. 1959. Comparisons between combine-drilling and broadcasting muriate of potash for spring barley. The Journal of Agricultural Science. 53 (1), pp. 10-16. https://doi.org/10.1017/S0021859600030860

Comparisons between placing and broadcasting of nitrogen, phosphorus and potassium fertilizers for potatoes, peas, beans, kale and maize

A - Papers appearing in refereed journals

Widdowson, F. V. and Cooke, G. W. 1958. Comparisons between placing and broadcasting of nitrogen, phosphorus and potassium fertilizers for potatoes, peas, beans, kale and maize. The Journal of Agricultural Science. 51 (1), pp. 53-61. https://doi.org/10.1017/S0021859600032780

Nitrogen fertilizers for spring barley and wheat

A - Papers appearing in refereed journals

Widdowson, F. V. and Cooke, G. W. 1958. Nitrogen fertilizers for spring barley and wheat. The Journal of Agricultural Science. 50 (3), pp. 312-321. https://doi.org/10.1017/S0021859600031518

Observations on the development of Heterodera rostochiensis Woll. in sterile root cultures

A - Papers appearing in refereed journals

Doncaster, C. C., Fenwick, D. W. and Widdowson, F. V. 1958. Observations on the development of Heterodera rostochiensis Woll. in sterile root cultures. Nematologica. 3 (4), pp. 308-314. https://doi.org/10.1163/187529258X00076

The value of nitrophosphate fertilizers

A - Papers appearing in refereed journals

Cooke, G. W., Mattingly, G. E. G. and Widdowson, F. V. 1958. The value of nitrophosphate fertilizers. The Journal of Agricultural Science. 50 (3), pp. 253-259. https://doi.org/10.1017/S0021859600031440

Uptake of phosphorus from P32-labelled superphosphate by field crops Part II. Comparison of placed and broadcast applications to barley

A - Papers appearing in refereed journals

Mattingly, G. E. G. and Widdowson, F. V. 1958. Uptake of phosphorus from P32-labelled superphosphate by field crops Part II. Comparison of placed and broadcast applications to barley. Plant and Soil. 10 (2), pp. 161-175. https://doi.org/10.1007/BF01394262

Uptake of phosphorus from P³²-labelled superphosphate by field crops: part I Effects of simultaneous application of non-radioactive phosphorus fertilizers

A - Papers appearing in refereed journals

Mattingly, G. E. G. and Widdowson, F. V. 1958. Uptake of phosphorus from P³²-labelled superphosphate by field crops: part I Effects of simultaneous application of non-radioactive phosphorus fertilizers. Plant and Soil. 9 (3), pp. 286-304.

Report on 1956 experiments on winter and spring sown cereals comparing methods of application of nitrogen and potassium fertilizers and forms of nitrogen fertilizers

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Cooke, G. W. 1957. Report on 1956 experiments on winter and spring sown cereals comparing methods of application of nitrogen and potassium fertilizers and forms of nitrogen fertilizers.

The value of mid-season top-dressings of nitrogen fertilizer for main-crop potatoes

A - Papers appearing in refereed journals

Cooke, G. W., Widdowson, F. V. and Wilcox, J. C. 1957. The value of mid-season top-dressings of nitrogen fertilizer for main-crop potatoes. The Journal of Agricultural Science. 49 (1), pp. 81-87. https://doi.org/10.1017/S0021859600034341

The value of nitrophosphate for spring-sown cereals

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1956. The value of nitrophosphate for spring-sown cereals. The Journal of Agricultural Science. 47 (1), pp. 112-116. https://doi.org/10.1017/S0021859600039824

Report on 1956 experiments comparing placing and broadcasting of nitrogen, phosphorus and potassium for potatoes, peas, beans, kale and maize

A - Papers appearing in refereed journals

Widdowson, F. V., Penny, A. and Cooke, G. W. 1956. Report on 1956 experiments comparing placing and broadcasting of nitrogen, phosphorus and potassium for potatoes, peas, beans, kale and maize.

Comparisons of ammonium sulphate, calcium nitrate, and urea for potatoes and kale

A - Papers appearing in refereed journals

Cooke, G. W., Penny, A. and Widdowson, F. V. 1956. Comparisons of ammonium sulphate, calcium nitrate, and urea for potatoes and kale. ARC Conference on Fertilisers.

Fertilizer placement for horticultural crops

A - Papers appearing in refereed journals

Cooke, G. W., Jackson, M. V., Widdowson, F. V. and Wilcox, J. C. 1956. Fertilizer placement for horticultural crops. The Journal of Agricultural Science. 47 (2), pp. 249-256. https://doi.org/10.1017/S0021859600040181

The use of 32 P labelled fertilizers to measure superphosphate equivalents of fertilizers in field and pot experiments

A - Papers appearing in refereed journals

Mattingly, G. E. G. and Widdowson, F. V. 1956. The use of 32 P labelled fertilizers to measure superphosphate equivalents of fertilizers in field and pot experiments . Des Rapports presentes au congres international de las science du sol VIth Paris. pp. 461-470.

Fertilizer placement for arable and herbage crops

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1955. Fertilizer placement for arable and herbage crops. Field Crop Abstracts. 8 (November), pp. 233-237.

Placement of fertilizers for potatoes planted by machines

A - Papers appearing in refereed journals

Cooke, G. W., Jackson, M. V. and Widdowson, F. V. 1954. Placement of fertilizers for potatoes planted by machines. The Journal of Agricultural Science. 44 (3), pp. 327-339. https://doi.org/10.1017/S0021859600044804

Methods of applying fertilizers for herbage crops

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1953. Methods of applying fertilizers for herbage crops. The Journal of Agricultural Science. 43 (3), pp. 358-364. https://doi.org/10.1017/S0021859600057555

Placement of fertilizers for row crops

A - Papers appearing in refereed journals

Cooke, G. W. and Widdowson, F. V. 1953. Placement of fertilizers for row crops. The Journal of Agricultural Science. 43 (3), pp. 348-357. https://doi.org/10.1017/S0021859600057543