Items where Year is 1940

Number of items: 56.
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  • Rothamsted Experimental Station Harpenden Field Experiments and Farm Operations 1939. (1940) Moffatt, J. R.
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  • Gall midges and grass seed production. (1940) Barnes, Horace Francis
  • Studies of fluctuations in insect populations VII The Button Top Midge (Rhabdophaga heterobia) at Syston, 1934-39. (1940) Barnes, Horace Francis picture_as_pdf
  • Two new pests of apple and black currant. (1940) Barnes, Horace Francis picture_as_pdf
  • The biology of the Chrysanthemum midge in England. (1940) Barnes, Horace Francis
  • The gall midges attacking the seed-heads of Cocksfoot, Dactylis glomerata, L. (1940) Barnes, Horace Francis picture_as_pdf
  • Meta slug control: experiments on possible substitutes for bran. (1940) Barnes, Horace Francis, Weil, J. W.
  • The ecology of activated sludge in relation to its properties and the isolation of a specific soluble substance from the purified effluent. (1940) Barritt, N. W.
  • The effects of alkali and some simple organic substances on three plant viruses. (1940) Bawden, Frederick, Pirie, Norman Wingate (Bill)
  • The inactivation of some plant viruses by urea. (1940) Bawden, Frederick, Pirie, Norman Wingate (Bill)
  • The choice of drinking water by the honeybee. (1940) Butler, Colin Gasking
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  • The growth of nodule bacteria in the expressed juices from legume roots bearing effective and ineffective nodules. (1940) Chen, H. K., Nicol, H., Thornton, H. G. picture_as_pdf
  • The structure of 'ineffective'nodules and its influence on nitrogen fixation. (1940) Chen, H. K., Thornton, H. G., Russell, E. J.
  • The estimation of the yields of cereal experiments by sampling for the ratio of grain to total produce. (1940) Cochran, William Gemmell picture_as_pdf
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  • The Little Hoos field experiment on the residual values of certain manures. (1940) Finney, D. J.
  • The detection of linkage. (1940) Finney, D. J.
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  • The cultivation of malting barley in England. (1940) Garner, H. V., Weil, J. W.
  • Soil conditions and the take-all disease of wheat V Further experiments on the survival of Ophiobolus graminis in infected wheat stubble buried in the soil. (1940) Garrett, S. D.
  • Utilization of nitrogen by Ophiobolus graminis. (1940) Garrett, S. D.
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  • Manuring Hevea III Results on young buddings in British Malaya. (1940) Haines, W. B., Crowther, Edward Mortimer
  • The active principles of leguminous fish-poison plants. Part IV The isolation of malaccol from Derris malaccensis. (1940) Harper, S. H.
  • The active principles of leguminous fish-poison plants. Part V. Derris malaccensis and Tephrosia toxicaria. (1940) Harper, S. H.
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  • Development, hatching and mortality of the eggs of Cimex lectularius L. (Hemiptera) in relation to climate, with observations on the effects of preconditioning to temperature. (1940) Johnson, C. G.
  • The longevity of the fasting bed-bug (C. lectularius L.) under experimental conditions and particularly in relation to the saturation deficiency law of water-loss. (1940) Johnson, C. G.
  • The maintenance of high atmospheric humidities for entomological work with glycerol-water mixtures. (1940) Johnson, C. G.
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  • Dry farming in India [Book Review]. (1940) Keen, Bernard Augustus
  • Weather and crops. (1940) Keen, Bernard Augustus
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  • The problem of the evaluation of rotenone-eontaining plants V The relative toxicities of different species of derris. (1940) Martin, J. T.
  • Aerobic denitrification. (1940) Meiklejohn, J.
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  • The minerals in the clay fractions of a black cotton soil and a red earth from Hyderabad, Deccan State, India. (1940) Nagelschmidt, G., Desai, A. D., Muir, A. picture_as_pdf
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  • Gas and vapour movements in the soil: I. The diffusion of vapours through porous solids. (1940) Penman, Howard Latimer picture_as_pdf
  • Gas and vapour movements in the soil: II. The diffusion of carbon dioxide through porous solids. (1940) Penman, Howard Latimer picture_as_pdf
  • Meteorological and soil factors affecting evaporation from fallow soil. (1940) Penman, Howard Latimer, Keen, Bernard Augustus
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  • Studies on the feeding methods and penetration rates of Myzus persicae Sulz., Myzus circumflexus Buckt., and Macrosiphum gei Koch. (1940) Roberts, F. M.
  • Obituary Mr C H Turnor - 1940. (1940) Russell, E. J.
  • Obituary Professor Jan Wodek and Adam Rozanski - 1940. (1940) Russell, E. J.
  • The determination of the size distribution of soil clods and crumbs. (1940) Russell, Edward Walter, Tamhane, R. V. picture_as_pdf
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  • A quantitative study of the interaction of viruses in plants. (1940) Sadasivan, T. S.
  • Clay mineral structures and their physical significance. (1940) Schofield, R. K.
  • Note on the freezing of soil. (1940) Schofield, R. K.
  • Soil conditions and the Fusarium culmorum seedling blight of Wheat. (1940) Shen, C. I.
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  • Some Fish-Poison Plants and Their Insecticidal Properties. (1940) Tattersfield, F., Martin, J. T., Howes, F. N. picture_as_pdf
  • The Insecticidal Properties of Certain Species of Annona and of an Indian Strain of Mundulea sericea (" Supli"). (1940) Tattersfield, F., Potter, C.
  • Studies on the British White-flies (Homoptera, Aleyrodidae). (1940) Trehan, K. N.
  • Ophiobolus graminis Sacc. var. avenae var. N., as the cause of take all or whiteheads of oats in Wales. (1940) Turner, H. N.
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  • The growth and anatomical structure of the carrot (Davcus carota) as affected by boron deficiency. (1940) Warington, Katherine
  • Studies on the transmission of sugar-beet yellows virus by the aphis, Myzus persicae (Sulz.). (1940) Watson, Marion
  • Evidence against the hypothesis that certain plant viruses are transmitted mechanically by aphides. (1940) Watson, Marion, Roberts, F. M.
  • An analysis of four years captures of insects in a light trap. Part II The effect of weather conditions on insect activity; and the estimation and forecasting of changes inthe insect population. (1940) Williams, Carrington Bonsor
  • A note on the statistical analysis of sentence-length as a criterion of literary style. (1940) Williams, Carrington Bonsor
  • The numbers of insects caught in a light trap at Rothamsted during four years 1933–1937. (1940) Williams, Carrington Bonsor
  • Field trials: their lay-out and statistical analysis. (1940) Wishart, John
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  • Modern experimental design and its function in plant selection. (1940) Yates, F
  • Lattice squares. (1940) Yates, Frank picture_as_pdf
  • The recovery of inter‐block information in balanced incomplete block designs. (1940) Yates, Frank