Items where Year is 1969

Number of items: 190.
Article
  • Cultural factors affecting colonization of sugar beet by different aphid species. (1969) Heathcote, G. D.
  • Sampling for aphids by traps and by crop inspection. (1969) Heathcote, G. D., Palmer, J. M. P., Taylor, Roy picture_as_pdf
  • The behaviour of nine populations of the potato cyst nematode Heterodera rostochiensis towards three resistant potato hybrids. (1969) Trudgill, D. L., Parrott, D. M.
  • Relationships of yields of maize and cotton, and the response to phosphate fertilizer, with soil phosphate potentials in Tanzania. (1969) Addiscott, Tom picture_as_pdf
  • The buffering capacity of potassium reserves in soils. (1969) Addiscott, Tom, Talibudeen, O. picture_as_pdf
  • Preservation of leaf protein preparations by air drying. (1969) Arkcoll, D. B.
  • Portable counter with keyboard and probes. (1969) Arnold, A. J.
  • The multiplication and spread of sacbrood virus of bees. (1969) Bailey, L.
  • The signs of adult bee diseases. (1969) Bailey, L.
  • The multiplication regions and interaction of acute and chronic bee-paralysis viruses in adult honey bees. (1969) Bailey, L., Milne, R. G.
  • Nutrition experiments in forest nurseries. (1969) Benzian, Blanche, Bolton, J., Freeman, S. C. R.
  • Soluble and slow-release PK-fertilizers for seedlings and transplants of Picea sitchensis and Picea abies in two English nurseries. (1969) Benzian, Blanche, Bolton, J., Mattingly, G. E. G. picture_as_pdf
  • Mobilisation and fixation of iron and trace elements by aerobically decomposing plant matter. (1969) Bloomfield, C.
  • Nuclear magnetic resonance spectra of natural pyrethrins and related compounds. (1969) Bramwell, A. F., Crombie, L., Hemesley, P., Pattenden, G., Elliott, Michael, Janes, N. F.
  • Molecular Structure of Herbicides and their Sorption by Soils. (1969) Briggs, G. G. picture_as_pdf
  • Uptake of phosphorus and other nutrients by maize in western Nigeria. (1969) Bromfield, A. R. picture_as_pdf
  • Partial silicification of chalk fossils from the Chilterns. (1969) Brown, G., Catt, John, Hollyer, S. E., Ollier, C. D.
  • Zeolites of the elinoptilolite–heulandite type in sediments of South-East England. (1969) Brown, G., Catt, John, Weir, A. H.
  • Thin windows for flow proportional counters in x-ray fluorescence spectrometers. (1969) Brown, G., Kanaris-Sotiriou, R.
  • The determination of sulphur in soils by X-ray fluorescence analysis. (1969) Brown, G., Kanaris-Sotiriou, R.
  • Effect of storage and lipid extraction on the properties of leaf protein. (1969) Buchanan, R. A.
  • Interference by cyanide with the measurements of papain hydrolysis. (1969) Buchanan, R. A., Byers, Marjorie
  • Monarch butterflies coinciding with American passerines in Britain and Ireland in 1968. (1969) Burton, J. F., French, R. A.
  • Report of the Bee Department 1968 pt 1. (1969) Butler, Colin Gasking
  • Pheromones of the honey bee - The secretion of the Nassanoff gland of the worker. (1969) Butler, Colin Gasking, Calam, D. H.
  • Nest-entrance marking with pheromones by honeybee-Apis mellifera L and by a wasp Vespula Vulgaris L. (1969) Butler, Colin Gasking, Fletcher, D. J., Doreen Watler picture_as_pdf
  • Entomophthora species attacking aphids in England, 1962–66. (1969) Byford, W. J., Reeve, G. A.
  • Entomophthora species attacking aphids in England, 1962–66. (1969) Byford, W. J., Reeve, G. J.
  • The scent gland complex of the adult cotton stainer bug, Dysdercus intermedius. (1969) Calam, D. H., Scott, G. C.
  • Species and sex-specific compounds from the heads of male bumblebees (Bombus spp.). (1969) Calam, D. H. picture_as_pdf
  • The absence of photoreversible pyrimidine dimers in the RNA of ultraviolet-irradiated tobacco mosaic virus. (1969) Carpenter, J. M., Kleczkowski, A.
  • The Pleistocene deposits of Holderness, East Yorkshire. (1969) Catt, John, Penny, L. F.
  • Types of fertilizers used on farm crops in England and Wales, 1966. (1969) Church, B. M.
  • Fertilisers in 2000 AD Phosphorus in agriculture. (1969) Cooke, George William
  • Plant nutrient cycles. (1969) Cooke, George William
  • Using chemicals to increase soil productivity. (1969) Cooke, George William
  • Pratylenchus pinguicaudatus n. sp.(Pratylenchinae: Nematoda) with a key to the genus Pratylenchus. (1969) Corbett, D. C. M.
  • Spermatheca shape in Trophurus spp. (1969) Corbett, D. C. M.
  • Peat Culture of Rhizobium trifolii: an Examination by Electron Microscopy. (1969) Dart, P. J., Roughley, R. J., Chandler, M. R.
  • A laboratory‐scale pulper for leafy plant material. (1969) Davys, M. N. G.
  • A laboratory-scale press for extracting juice from leaf pulp. (1969) Davys, M. N. G., Pirie, Norman Wingate (Bill), Street, G.
  • The effect of farmyard manure on the fertilizer requirement of sugar beet. (1969) Draycott, A. P.
  • The effects of magnesium fertilizers on yield and chemical composition of sugar beet. (1969) Draycott, A. P., Durrant, M. J.
  • Trials on the control of Docking disorder in sugar beet; seed and row treatment with nematicides. (1969) Dunning, R. A., Winder, G. H.
  • Effects of soil fumigation on disease incidence, growth, and yield of spring wheat. (1969) Ebbels, D. L.
  • Problem of insecticidal residues in agricultural soils. (1969) Edwards, C. A.
  • Soil pollutants and soil animals. (1969) Edwards, C. A.
  • The influence of agricultural practice on soil macro-arthropod populations. (1969) Edwards, C. A., Lofty, J. R.
  • Structural requirements for pyrethrin-like activity. (1969) Elliott, Michael
  • Pyrethrin 2 and related esters obtained by reconstitution. (1969) Elliott, Michael, Janes, N. F.
  • Condensation of ketones with dimethyl dimethylmaleate. A synthesis of calythrone. (1969) Elliott, Michael, Janes, N. F., Jeffs, K. A.
  • Insecticidal activity of pyrethrins and related compounds. 2. Relative toxicity of esters from optical and geometrical isomers of chrysanthemic, pyrethric and related acids and optical isomers of cinerolone and allethrolone. (1969) Elliott, Michael, Needham, P. H., Potter, C.
  • Apparatus for measuring nematode movement. (1969) Evans, K.
  • Changes in a Heterodera rostochiensis population through the growing season. (1969) Evans, K.
  • Effects of spraying plants with suspensions of inert dusts. (1969) Eveling, D. W.
  • Investigations on fecundity of Aphelenchus avenae. (1969) Fisher, J. M. picture_as_pdf
  • The relation between stylet and body length in Aphelenchus avenae with observations on Paratylenchus nanus. (1969) Fisher, J. M.
  • Heterodera latipons n. sp., a cereal cyst nematode from the Mediterranean region. (1969) Franklin, M. T.
  • Influence of the odour of a honeybee colony's food stores on the behaviour of its foragers. (1969) Free, J. B.
  • The effect of the size of a honeybee colony on its foraging activity. (1969) Free, J. B., Preece, D. A.
  • The egg-eating behaviour of Bombus lapidarius L. (1969) Free, J. B., Weinberg, I., Whiten, A. picture_as_pdf
  • Migration of Laphygma exigua Hubner (Lepidoptera: Noctuidae) to the British Isles in relation to large-scale weather systems. (1969) French, R. A. picture_as_pdf
  • Moth immigrations in the British Isles in July 1968. (1969) French, R. A., Hurst, G. W.
  • Persistent effects of seedling treatment on growth of sugar beet in pots. (1969) French, S. A. W., Humphries, E. C.
  • Available soil nitrogen - its measurement and some factors affecting its correlation with crop performance. (1969) Gasser, J. K. R.
  • Some processes affecting nitrogen in the soil. (1969) Gasser, J. K. R.
  • Residual Infectivity and the Extent of Photoreactivation in Three Different Host Plants of uv-irradiated Potato Virus X. (1969) Govier, D. A., Kleczkowski, A.
  • Algorithm AS 18: Evaluation of Marginal Means. (1969) Gower, John
  • Algorithm AS 19: Analysis of Variance for a Factorial Table. (1969) Gower, John
  • Algorithm AS 23: Calculation of Effects. (1969) Gower, John
  • The basis of numerical methods of classification. (1969) Gower, John
  • A survey of numerical methods useful in taxonomy - mites. (1969) Gower, John
  • Minimum spanning trees and single linkage cluster analysis. (1969) Gower, John, Ross, G. J. S.
  • Diffusion of organophosphorus insecticides in soils. (1969) Graham-Bryce, I. J.
  • Some laboratory tests of feeding deterrents and baits against wireworms. (1969) Griffiths, D. C.
  • Laboratory and field tests in 1966‐67 on chemical control of wireworms (Agriotes spp.). (1969) Griffiths, D. C., Roberts, P. F., Scott, G. C., Lofty, J. R.
  • Timing of insecticidal sprays to control the wheat-bulb fly, Leptohylemyia coarctata (Fall.). (1969) Griffiths, D. C., Scott, G. C.
  • Trials of Organophosphorus and Carbamate Seed Dressings against Wheat Bulb Fly Leptohylemyia coarctata in 1966–68. (1969) Griffiths, D. C., Scott, G. C., Maskell, F. E., Roberts, P. F.
  • A laboratory method for assessing the toxicity of stomach poisons to slugs. (1969) Henderson, I. F.
  • Control of potato tuber diseases with systemic fungicides. (1969) Hide, G. A., Hirst, J. M., Griffith, R. L.
  • Control of potato tuber diseases with systemic fungicides. (1969) Hide, G. A., Hirst, J. M., Griffith, R. L.
  • The phenology of skin spot (Oospora pustulans Owen &Wakef.) and other fungal diseases of potato tubers. (1969) Hide, G. A., Hirst, J. M., Mundy, E. J.
  • Use of fertilizers on horticultural crops. (1969) Hills, Mary G., Little, R. C.
  • Allyfurans. (1969) Hoffmann, H. M. R., Janes, N. F.
  • Extraction and handling of plant and soil nematodes. (1969) Hooper, D. J.
  • Identification of plant and soil nematodes. (1969) Hooper, D. J.
  • Some problems in the systematics of soil nematodes. (1969) Hooper, D. J.
  • Methods of investigating populations of the take‐all fungus (Ophiobolus graminis) in soil. (1969) Hornby, D.
  • Quantitative estimation of soil-borne inoculum of the take-all fungus (Ophiobolus graminis (Sacc.) Sacc.). (1969) Hornby, D.
  • A comparison of methods of growing sugar-beet seed. (1969) Hull, R., Scott, R. K.
  • Experiments with CCC on wheat: effects of spacing, nitrogen and irrigation. (1969) Humphries, E. C., Bond, W.
  • Photosynthesis in sugar beet depends on root growth. (1969) Humphries, E. C., French, S. A W.
  • Effect of seedling treatment on growth and yield of sugar beet in the field. (1969) Humphries, E. C., French, S. A. W.
  • Effect of Morphactin on growth of potatoes. (1969) Humphries, E. C., Pethiyagoda, U.
  • The genus Longidorella Thorne (Nematoda). (1969) Jairajpuri, M. S., Hooper, D. J.
  • The Amounts of Hive-Space Needed by Colonies of European Apis Mellifera. (1969) James Simpson picture_as_pdf
  • Queen confinement, queen piping and swarming in Apis mellifera colonies. (1969) James Simpson, Cherry, S. M. picture_as_pdf
  • Terrain and soil in North Berkshire. (1969) Jarvis, M. G.
  • Entomological Department at Rothamsted 1969. (1969) Johnson, C. G.
  • The plant nutrients in crops grown on Broadbalk. (1969) Johnston, Johnny
  • The soils of Broadbalk : Plant nutrients in Broadbalk soils. (1969) Johnston, Johnny
  • Oviposition of frit fly (Oscinella frit L.) on oat seedlings and subsequent larval development. (1969) Jones, M. G.
  • The effect of weather on frit fly (Oscinella frit L.) and its predators. (1969) Jones, M. G.
  • Some reflections on quarantine, distribution and control of plant nematodes. (1969) Jones, F. G. W.
  • The influence of soil structure and moisture on nematodes, especially xiphinema, longidorus, trichodorus and heterodera spp. (1969) Jones, F. G. W., Larbey, D. W., Parrott, D. M.
  • Population fluctuations of Heterodera rostochiensis Woll. when susceptible potato varieties are grown continuously. (1969) Jones, F. G. W., Parrott, D. M.
  • An Experiment to Assess Losses Caused by Frit-fly (Oscinella frit L) Shoot Attack and the Application of Phorate in a Crop of Sweet Corn (Zea mays L). (1969) Judenko, E.
  • Further Results on the Effects of Phorate on Losses of Sweet Corn (Zea mays L.) Caused by Frit Fly (Oscinella frit L.). (1969) Judenko, E.
  • The diminution of sulphur contamination of powder specimens in X-ray fluorescence analysis. (1969) Kanaris-Sotiriou, R., Brown, G.
  • The behaviour of tomato bushy stunt virus and bromegrass mosaic virus at different temperatures in vivo and in vitro. (1969) Kassanis, Basil
  • Properties of some defective strains of tobacco mosaic virus and their behaviour as affected by inhibitors during storage in sap. (1969) Kassanis, Basil, Woods, R. D.
  • The colorimetric determination of calcium in silicate minerals. (1969) King, H. G. C., Pruden, G.
  • The determination of sulphur dioxide with rosaniline dyes. (1969) King, H. G. C., Pruden, G.
  • The mutation of some virulent rhizobiophages into the temperate form. (1969) Kleczkowska, J.
  • Action spectrum for inactivation of the infectivity of potato virus X by U.V. radiation. (1969) Kleczkowski, A., Govier, D. A.
  • Health hazards from mouldy fodder. (1969) Lacey, J.
  • The relation of photosynthesis by phytometers in the profiles of kale crops to leaf area index above them. (1969) Leach, G. J.
  • An investigation on commercial farms of factors thought to contribute to egg cracking. (1969) Leech, F. B., Knowles, N. R.
  • Detoxification of diazinon by subcellular fractions of diazinon-resistant and susceptible houseflies. (1969) Lewis, T.
  • Factors affecting primary patterns of infestation. (1969) Lewis, T.
  • The distribution of flying insects near a low hedgerow. (1969) Lewis, T.
  • Metabolism of some organophosphorus insecticides by strains of housefly. (1969) Lewis, T., Lord, K. A.
  • The insect faunas of pear and apple orchards and the effect of windbreaks on their distribution. (1969) Lewis, T., Smith, B. D.
  • A machine for rubbing small samples of sugar beet fruit. (1969) Longden, P. C.
  • Device for controlling humidity in small insect rearing chambers. (1969) Macaulay, E. D. M.
  • The agronomic significance of soil mapping units. (1969) Mackney, D.
  • Soil-treatments for control of potato tuber-blight. (1969) Mcintosh, A. H.
  • Effect of paraflan wax on field control of potato blight by copper oxychloride. (1969) Mcintosh, A. H., Eveling, D. W., Melville, S. C.
  • Growth responses of plants in unsterilized soil to inoculation with vesicular-arbuscular mycorrhiza. (1969) Mosse, B., Hayman, D. S., Ide, G. J.
  • Growth responses of plants in unsterilized soil to inoculation with vesicular-arbuscular mycorrhiza. (1969) Mosse, B., Hayman, D. S., Ide, G. J.
  • Algorithm AS 20: The efficient formation of a triangular array with restricted storage for data. (1969) Nelder, John
  • Cation exchange properties of micas: I. The relation between mica composition and potassium exchange in solutions of different pH. (1969) Newman, A. C. D.
  • Delayed Exchange of Potassium from some Edges of Mica Flakes. (1969) Newman, A. C. D., Brown, G.
  • Effects of nitrogen and potassium fertilisers on contents of carbohydrates and free amino acids in Italian ryegrass I Effects on growth and soluble‐carbohydrate contents of leaves, stubble and roots. (1969) Nowakowski, T. Z.
  • Genetics of symbiosis and nitrogen fixation in legumes. (1969) Nutman, Phillip Stadler
  • Micro-organisms in the rhizosphere of plants inoculated with Azotobacter chroococcum. (1969) Patel, J. J.
  • Phage-like Particles From a Lysogenic Thermomonospora. (1969) Patel, J. J.
  • Interactions of Azotobacter with rhizosphere and root-surface microflora. (1969) Patel, J. J., Brown, M. E.
  • The role of vegetation in soil water problems. (1969) Penman, Howard Latimer
  • Age and insect fauna of the Dimlington Silts, East Yorkshire. (1969) Penny, L. F., Coope, G. R., Catt, John
  • A small laboratory apparatus for measuring accelerated loss rates of pesticide deposits by rainwashing. (1969) Phillips, F. T.
  • o-Quinones formed in plant extracts. Their reactions with amino acids and peptides. (1969) Pierpoint, William Stanley
  • Complementary ways of meeting the world’s protein need. (1969) Pirie, Norman Wingate (Bill) picture_as_pdf
  • The production and use of leaf protein. (1969) Pirie, Norman Wingate (Bill)
  • Balanced incomplete block designs with sets of identical blocks. (1969) Preece, D. A.
  • Near-Cyclic Representations for Some Resolution VI Fractional Factorial Plans. (1969) Preece, D. A.
  • An osmotic method for studying the suction/moisture content relationships of porous materials. (1969) Pritchard, D. T.
  • The effect of organic matter on the determination of iron (II) in soils and rocks. (1969) Pruden, G., Bloomfield, C.
  • A scheme of semi-micro analysis for the major elements in clay minerals, based on modifications to conventional methods of silicate analysis. (1969) Pruden, G., King, H. G. C.
  • A rapid method for determining the surface area of aluminosilicates from the adsorption dynamics of ethylene glycol vapour. (1969) Rawson, R. A. G.
  • The numerical approach to soil systematics. (1969) Rayner, J. H.
  • The effect of population density on the sex ratio of Heterodera rostochiensis; a two dimensional model. (1969) Ross, G. J. S., Trudgill, D. L.
  • Growth of Trifolium subterraneum L. Selected for Sparse and Abundant Nodulation as Affected by Root Temperature and Rhizobium Strain. (1969) Roughley, R. J., Dart, P. J.
  • Reduction of acetylene by nodules of Trifolium subterraneum as affected by root temperature, Rhizobium strain and host cultivar. (1969) Roughley, R. J., Dart, P. J.
  • A fifty-channel digital recorder for thermocouple psychrometers. (1969) Rowse, H. R., Monteith, John Lennox
  • Conifer seedling pathology. (1969) Salt, G. A.
  • Effects of soil fumigation on cereal foot and root pathogens. (1969) Salt, G. A.
  • Some problems connected with monitoring for resistance. (1969) Sawicki, R. M.
  • The effect of sowing and harvesting dates, plant population and fertilizers on seed yield and quality of direct-drilled sugar-beet seed crops. (1969) Scott, R. K. picture_as_pdf
  • Microbiology of the soil. (1969) Skinner, F. A.
  • Effect of CCC on Eyespot (Cercosporella herpotrichoides) of Winter Whear. (1969) Slope, D. B., Humphries, E. C., Etheridge, J.
  • Laboratory and field assessment of pesticide poisoning of honeybees Apis Mellifera. (1969) Stevenson, J. H.
  • Surface resistance of crop canopies. (1969) Szeicz, C., Long, I. F.
  • Aerodynamic and surface factors in evaporation. (1969) Szeicz, G., Endrodi, G., Tajchman, S.
  • Use of controlled environments for studying the effects of climate factors on growth and yield. (1969) Thorne, G. N.
  • Growth and yield of six short varieties of spring wheat derived from Norin 10 and of two European varieties. (1969) Thorne, G. N., Welbank, P. J., Blackwood, G. C.
  • The effect of liming and fertilizers on the botanical composition of permanent grassland, and on the yield of hay. (1969) Thurston, J. M.
  • Two marine species of Aphelenchoides. (1969) Timm, R. W., Franklin, M. T.
  • Aniline utilization by a soil pseudomonad. (1969) Walker, N., Harris, D.
  • Viruses, vectors and vegetation [Book Review]. (1969) Watson, Marion A.
  • Aerial photography in Soil and Land Survey. (1969) Webster, Richard
  • The mineralogy of Palaeogene sediments in northeast Kent (Great Britain). (1969) Weir, A. H., Catt, John
  • Effect of CCC and glycine betaine on growth and growth‐substance content of primary leaves of dwarf Frenchbean (Phaseolus vulgaris L.). (1969) Wheeler, A. W.
  • Nematodes attacking coffee, tea and cocoa, and their control. (1969) Whitehead, A. G.
  • Effects on barley and kale of NPK fertilizers containing differing proportions of urea and ammonium nitrate, and either triple superphosphate or mono-urea phosphate. (1969) Widdowson, F. V., Penny, A. picture_as_pdf
  • Effect of humidity on the sporulation of Entomophthora aphidis and E. thaxteriana. (1969) Wilding, N.
  • Effects of time sowing of spring wheat and defoliation of Agropyron repens (L) Beauv. on competition between them. (1969) Williams, E. D.
  • The rapid determination of nitrate in crops, soils, drainage and rainwater by a simple field method using diphenylamine or diphenylbenzidine with glass fibre paper. (1969) Williams, Rodney
  • Chemical control of the cereal cyst-nematode-can it be economic. (1969) Williams, T. D.
  • The effects of formalin, nabam, irrigation and nitrogen on Heterodera avenae Woll., Ophiobolus graminis Sacc. and the growth of spring wheat. (1969) Williams, T. D.
  • The behaviour of a cotton stainer, Dysdercus intermedius, distant (Heteroptera, Pyrrhocoridae) towards models and its significance for aggregation. (1969) Youdeowei, A.
  • The morphology of the scent glands of Dysdercus intermedius Distant (Hemiptera: Pyrrhocoridae) and a preliminary analysis of the scent gland secretions of the fifth instar larvae. (1969) Youdeowei, A., Calam, D. H.
    • Book Section
  • Migration and dispersal of insects by flight. (1969) Johnson, C. G.
  • The description of data structures for statistical computing. (1969) Nelder, John
  • The Viruses [Chapter 11]. (1969) Pirie, Norman Wingate (Bill)
    • Conference or Workshop Item
  • Some pheromones controlling honeybee behaviour. (1969) Butler, Colin Gasking picture_as_pdf
  • Effects of gamma irradiation on populations of soil invertebrates. (1969) Edwards, C. A.
    • Book
  • Problems of soil classification. (1969) Avery, B. W.
  • The Park Grass plots at Rothamsted (1856-1949). (1969) Brenchley, Winifred Elsie
  • Food resources: conventional and novel. (1969) Pirie, Norman Wingate (Bill)
    • This list was generated on Wed Mar 11 01:07:44 2026 GMT.