Determination of the nitrogen requirements of crops by analysis 1 Laboratory method of measuring soil nitrogen status and methods of correlating measurements with crop performance

Gasser, J. K. R. 1961. Determination of the nitrogen requirements of crops by analysis 1 Laboratory method of measuring soil nitrogen status and methods of correlating measurements with crop performance. Technical Bulletin Ministry of Agriculture Fisheries and Food. 15.

Related outputs

Soil-nitrogen .9. Effects of leys and organic manures on available-nitrogen in clay and sandy soils

A - Papers appearing in refereed journals

Gasser, J. K. R. and Kalembasa, S. J. 1976. Soil-nitrogen .9. Effects of leys and organic manures on available-nitrogen in clay and sandy soils. Journal of Soil Science. 27 (2), pp. 237-249. https://doi.org/10.1111/j.1365-2389.1976.tb01994.x

The distribution in soil of aqueous ammonia injected under grass

A - Papers appearing in refereed journals

Gasser, J. K. R. and Ross, G. J. S. 1975. The distribution in soil of aqueous ammonia injected under grass. Journal of the Science of Food and Agriculture. 26 (6), pp. 719-729. https://doi.org/10.1002/jsfa.2740260602

An assessment of the importance of some factors causing losses of lime from agricultural soils

A - Papers appearing in refereed journals

Gasser, J. K. R. 1973. An assessment of the importance of some factors causing losses of lime from agricultural soils. Experimental husbandry. 25, pp. 86-95.

The growth, composition and nutrient uptake of spring wheat: Effects of fertilizer-N, irrigation and CCC on dry matter and N, P, K, Ca, Mg, and Na

A - Papers appearing in refereed journals

Gasser, J. K. R. and Thorburn, M. A. P. 1972. The growth, composition and nutrient uptake of spring wheat: Effects of fertilizer-N, irrigation and CCC on dry matter and N, P, K, Ca, Mg, and Na. The Journal of Agricultural Science. 78 (3), pp. 393-404. https://doi.org/10.1017/S0021859600026307

Experiments on the use of anhydrous ammonia for grass

A - Papers appearing in refereed journals

Gasser, J. K. R., Blakemore, M. and Flint, R. C. 1972. Experiments on the use of anhydrous ammonia for grass. The Journal of Agricultural Science. 78 (2), pp. 193-201. https://doi.org/10.1017/S002185960006901X

Nature and value of residual fertilizer nitrogen in soils

A - Papers appearing in refereed journals

Gasser, J. K. R. 1971. Nature and value of residual fertilizer nitrogen in soils. Technical Bulletin Ministry of Agriculture Fisheries and Food. 20, pp. 114-124.

Effect of ammonium and nitrate forms of nitrogen and restricted water supply on growth and nitrogen uptake of wheat

A - Papers appearing in refereed journals

Spratt, E. D. and Gasser, J. K. R. 1970. Effect of ammonium and nitrate forms of nitrogen and restricted water supply on growth and nitrogen uptake of wheat. Canadian journal of soil science. 50 (3), pp. 263-273.

Some biological effects of ammonia injected into soils

A - Papers appearing in refereed journals

Gasser, J. K. R. 1970. Some biological effects of ammonia injected into soils. Anhydrous Ammonia. Proceedings of a Symposium on Aspects of its Technology and Use as a Fertilizer . pp. 30-38.

Nitrification inhibitors their occurrence, production and effects of their use on crop yields and composition

A - Papers appearing in refereed journals

Gasser, J. K. R. 1970. Nitrification inhibitors their occurrence, production and effects of their use on crop yields and composition. Soils and fertilizers. 33 (6), pp. 547-554.

The effects of the nitrogen in soils on the growth, composition and yield of crops

A - Papers appearing in refereed journals

Gasser, J. K. R. 1970. The effects of the nitrogen in soils on the growth, composition and yield of crops. Nitrogen nutrition of the plant. pp. 174-188.

The decomposition of crotonylidene di-urea in soil and the recovery of nitrogen by ryegrass

A - Papers appearing in refereed journals

Gasser, J. K. R. 1970. The decomposition of crotonylidene di-urea in soil and the recovery of nitrogen by ryegrass. The Journal of Agricultural Science. 74 (1), pp. 107-110. https://doi.org/10.1017/S0021859600021031

The effect of ammonium sulphate treated with a nitrification inhibitor, and calcium nitrate, on growth and N-uptake of spring wheat, ryegrass and kale

A - Papers appearing in refereed journals

Spratt, E. D. and Gasser, J. K. R. 1970. The effect of ammonium sulphate treated with a nitrification inhibitor, and calcium nitrate, on growth and N-uptake of spring wheat, ryegrass and kale. The Journal of Agricultural Science. 74 (1), pp. 111-117. https://doi.org/10.1017/S0021859600021043

Effects of fertilizer-nitrogen and water supply on distribution of dry matter and nitrogen between the different parts of wheat

A - Papers appearing in refereed journals

Spratt, E. D. and Gasser, J. K. R. 1970. Effects of fertilizer-nitrogen and water supply on distribution of dry matter and nitrogen between the different parts of wheat. Canadian journal of plant science. 50 (6), pp. 613-625. https://doi.org/10.4141/cjps70-119

Some causes of error in determination of total nitrogen in plant material

A - Papers appearing in refereed journals

Hamlyn, F. G. and Gasser, J. K. R. 1970. Some causes of error in determination of total nitrogen in plant material. Chemistry & Industry. 35, pp. 1142-1143.

Effects of green manuring, farmyard manure, and straw on the organic matter of soil and of green manuring on available nitrogen

A - Papers appearing in refereed journals

Margaret Chater and Gasser, J. K. R. 1970. Effects of green manuring, farmyard manure, and straw on the organic matter of soil and of green manuring on available nitrogen. Journal of Soil Science. 21 (1), pp. 127-137. https://doi.org/10.1111/j.1365-2389.1970.tb01160.x

Available soil nitrogen - its measurement and some factors affecting its correlation with crop performance

A - Papers appearing in refereed journals

Gasser, J. K. R. 1969. Available soil nitrogen - its measurement and some factors affecting its correlation with crop performance. Welsh Soils Discussion Group Reports. 10, pp. 76-92.

Some processes affecting nitrogen in the soil

A - Papers appearing in refereed journals

Gasser, J. K. R. 1969. Some processes affecting nitrogen in the soil. Technical Bulletin Ministry of Agriculture Fisheries and Food. 15.

The effects of soil management on available nitrogen

A - Papers appearing in refereed journals

Gasser, J. K. R. 1968. The effects of soil management on available nitrogen. Stikstof. 12, pp. 132-142.

Effects of previous cropping and fertilizer-N applied in field experiments on soil-N available to ryegrass grown in pots

A - Papers appearing in refereed journals

Gasser, J. K. R. and Mitchell, J. D. D. 1968. Effects of previous cropping and fertilizer-N applied in field experiments on soil-N available to ryegrass grown in pots . International congress of soil science. 9 (2), pp. 449-458.

The effects on winter wheat of ammonium sulphate, with and without a nitrification inhibitor, and of calcium nitrate

A - Papers appearing in refereed journals

Gasser, J. K. R. and Hamlyn, F. G. 1968. The effects on winter wheat of ammonium sulphate, with and without a nitrification inhibitor, and of calcium nitrate. The Journal of Agricultural Science. 71 (2), pp. 243-249. https://doi.org/10.1017/S0021859600014702

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

The effect of a nitrification inhibitor on the concentration of nitrate in plants

A - Papers appearing in refereed journals

Nowakowski, T. Z. and Gasser, J. K. R. 1967. The effect of a nitrification inhibitor on the concentration of nitrate in plants. The Journal of Agricultural Science. 68 (1), pp. 131-133. https://doi.org/10.1017/S0021859600017949

Effects of ammonium sulphate and calcium nitrate on the growth, yield and nitrogen uptake of barley, wheat and oats

A - Papers appearing in refereed journals

Gasser, J. K. R. and Iordanou, I. G. 1967. Effects of ammonium sulphate and calcium nitrate on the growth, yield and nitrogen uptake of barley, wheat and oats. The Journal of Agricultural Science. 68 (3), pp. 307-316. https://doi.org/10.1017/S002185960001279X

Measurement of losses from fertilizer nitrogen during incubation in acid sandy soils and during subsequent growth of ryegrass, using 15N‐labelled fertilizers

A - Papers appearing in refereed journals

Gasser, J. K. R., Greenland, D. J. and Rawson, R. A. G. 1967. Measurement of losses from fertilizer nitrogen during incubation in acid sandy soils and during subsequent growth of ryegrass, using 15N‐labelled fertilizers. Journal of Soil Science. 18 (2), pp. 289-300. https://doi.org/10.1111/j.1365-2389.1967.tb01507.x

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.

Effects of 2-chloro-6-(trichloromethyl)-pyridine on the nitrification of ammonium sulphate and its recovery by rye-grass

A - Papers appearing in refereed journals

Gasser, J. K. R. 1965. Effects of 2-chloro-6-(trichloromethyl)-pyridine on the nitrification of ammonium sulphate and its recovery by rye-grass. The Journal of Agricultural Science. 64 (3), pp. 299-303. https://doi.org/10.1017/S0021859600016609

Effects of urea on the germination and early growth of kale, barley, and wheat

A - Papers appearing in refereed journals

Gasser, J. K. R. 1965. Effects of urea on the germination and early growth of kale, barley, and wheat. Plant and Soil. 23 (3), pp. 351-370. https://doi.org/10.1007/BF01347729

Fertiliser Urea

A - Papers appearing in refereed journals

Gasser, J. K. R. 1964. Fertiliser Urea. World crops. pp. 1-8.

Some factors affecting losses of ammonia from urea and ammonium sulphate applied to soils

A - Papers appearing in refereed journals

Gasser, J. K. R. 1964. Some factors affecting losses of ammonia from urea and ammonium sulphate applied to soils. Journal of Soil Science. 15 (2), pp. 258-272. https://doi.org/10.1111/j.1365-2389.1964.tb02224.x

Effects of solutions of urea and of ammonium and potassium salts on the germination of kale, barley and wheat

A - Papers appearing in refereed journals

Gasser, J. K. R. 1964. Effects of solutions of urea and of ammonium and potassium salts on the germination of kale, barley and wheat. Chemistry & Industry. pp. 1687-1689.

Urea as a fertilizer

A - Papers appearing in refereed journals

Gasser, J. K. R. 1964. Urea as a fertilizer. Soils and fertilizers. 27, pp. 175-180.

Fertilizer urea

A - Papers appearing in refereed journals

Gasser, J. K. R. 1964. Fertilizer urea. World crops.

A note on the effects of some soil sterilants on the mineralisation and nitrification of soil‐nitrogen

A - Papers appearing in refereed journals

Gasser, J. K. R. and Peachey, J. E. 1964. A note on the effects of some soil sterilants on the mineralisation and nitrification of soil‐nitrogen. Journal of the Science of Food and Agriculture. 15 (3), pp. 142-146. https://doi.org/10.1002/jsfa.2740150302

Soil nitrogen VIII some factors affecting correlations between measurements of soil‐N status and crop performance

A - Papers appearing in refereed journals

Gasser, J. K. R. and Jephcott, B. M. 1964. Soil nitrogen VIII some factors affecting correlations between measurements of soil‐N status and crop performance. Journal of the Science of Food and Agriculture. 15 (6), pp. 422-428. https://doi.org/10.1002/jsfa.2740150614

A substitute reagent for titanous sulphate for reducing nitrate-N

A - Papers appearing in refereed journals

Gasser, J. K. R. 1963. A substitute reagent for titanous sulphate for reducing nitrate-N. Analyst. 88 (1044), pp. 237-238. https://doi.org/10.1039/AN9638800237

Soil nitrogen VII Correlations between measurements of nitrogen status of soils and nitrogen % and nitrogen content of crops

A - Papers appearing in refereed journals

Gasser, J. K. R. and Williams , R. J. B. 1963. Soil nitrogen VII Correlations between measurements of nitrogen status of soils and nitrogen % and nitrogen content of crops. Journal of the Science of Food and Agriculture. 14 (4), pp. 269-277. https://doi.org/10.1002/jsfa.2740140411

Effects of long-continued treatment on the mineral nitrogen content and mineralisable nitrogen of soil from selected plots of the Broadbalk experiment on continuous wheat, Rothamsted

A - Papers appearing in refereed journals

Gasser, J. K. R. 1962. Effects of long-continued treatment on the mineral nitrogen content and mineralisable nitrogen of soil from selected plots of the Broadbalk experiment on continuous wheat, Rothamsted. Plant and Soil. 17 (2), pp. 209-220. https://doi.org/10.1007/BF01376225

Transformation, leaching and uptake of fertiliser‐N applied to winter and to spring wheat grown on a light soil

A - Papers appearing in refereed journals

Gasser, J. K. R. 1962. Transformation, leaching and uptake of fertiliser‐N applied to winter and to spring wheat grown on a light soil. Journal of the Science of Food and Agriculture. 13 (7), pp. 367-375. https://doi.org/10.1002/jsfa.2740130704

Effects of air‐drying and air‐dry storage on the mineralisable‐nitrogen of soils

A - Papers appearing in refereed journals

Gasser, J. K. R. 1961. Effects of air‐drying and air‐dry storage on the mineralisable‐nitrogen of soils. Journal of the Science of Food and Agriculture. 12 (11), pp. 778-784. https://doi.org/10.1002/jsfa.2740121110

Soil nitrogen VI Correlations between laboratory measurements of soil mineral‐N and crop yields and responses in pot and field experiments

A - Papers appearing in refereed journals

Gasser, J. K. R. 1961. Soil nitrogen VI Correlations between laboratory measurements of soil mineral‐N and crop yields and responses in pot and field experiments. Journal of the Science of Food and Agriculture. 12 (8), pp. 562-573. https://doi.org/10.1002/jsfa.2740120806

Transformation, leaching and uptake of fertilizer nitrogen applied in autumn and spring to winter wheat on a heavy soil

A - Papers appearing in refereed journals

Gasser, J. K. R. 1961. Transformation, leaching and uptake of fertilizer nitrogen applied in autumn and spring to winter wheat on a heavy soil. Journal of the Science of Food and Agriculture. 12 (5), pp. 375-380. https://doi.org/10.1002/jsfa.2740120503

Soil nitrogen IV Transformations and Movement of Fertiliser Nitrogen in a Light Soil

A - Papers appearing in refereed journals

Gasser, J. K. R. 1959. Soil nitrogen IV Transformations and Movement of Fertiliser Nitrogen in a Light Soil. Journal of the Science of Food and Agriculture. 10 (3), pp. 192-197. https://doi.org/10.1002/jsfa.2740100309

Soil nitrogen V Leaching of nitrate from soils in laboratory experiments

A - Papers appearing in refereed journals

Webster, R. and Gasser, J. K. R. 1959. Soil nitrogen V Leaching of nitrate from soils in laboratory experiments. Journal of the Science of Food and Agriculture. 10 (11), pp. 584-588. https://doi.org/10.1002/jsfa.2740101102

Use of deep-freezing in the preservation and preparation of fresh soil samples

A - Papers appearing in refereed journals

Gasser, J. K. R. 1958. Use of deep-freezing in the preservation and preparation of fresh soil samples. Nature. 181 (May 10), pp. 1334-1335. https://doi.org/10.1038/1811334b0

Residual effects of phosphate fertilizers on a Wealden soil

A - Papers appearing in refereed journals

Cooke, G. W. and Gasser, J. K. R. 1955. Residual effects of phosphate fertilizers on a Wealden soil. Journal of Soil Science. 6 (2), pp. 248-253. https://doi.org/10.1111/j.1365-2389.1955.tb00848.x

The mobilization of phosphate in waterlogged soils

A - Papers appearing in refereed journals

Gasser, J. K. R. and Bloomfield, C. 1955. The mobilization of phosphate in waterlogged soils. Journal of Soil Science. 6 (2), pp. 219-232. https://doi.org/10.1111/j.1365-2389.1955.tb00845.x