Items where Year is 1930

Number of items: 78.
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  • Studies on the carbon and nitrogen cycles in the soil II The extraction of the organic matter of the soil with alkali. (1930) Arnold, C. W. B., Page, H. J. picture_as_pdf
  • Fourth Report on Barley Proteins - the proteins of barley during development and storage and in the mature grain. (1930) Bishop, L. R.
  • Statistical Studies of the Analytical Data Accumulated in the Course of the Barley Investigations - I The prediction of extract. (1930) Bishop, L. R.
  • The nitrogen content and quality of barley. (1930) Bishop, L. R.
    • A
  • The general form of the orthogonal polynomials for simple series with proofs of their simple properties. (1930) Allan, F. E.
  • A method of estimating the yield of a missing plot in field experimental work. (1930) Allan, F. E., Wishart, John
  • Biometry and evolution. (1930) Aylmer Fisher, Ronald
  • Inverse probability. (1930) Aylmer Fisher, Ronald picture_as_pdf
  • Moments and product moments of sampling distributions. (1930) Aylmer Fisher, Ronald picture_as_pdf
  • Mortality amongst plants and its bearing on natural selection. (1930) Aylmer Fisher, Ronald
  • The evolution of dominance in certain polymorphic species. (1930) Aylmer Fisher, Ronald picture_as_pdf
  • The moments of the distribution for normal samples of measures of departure from normality. (1930) Aylmer Fisher, Ronald
  • The arrangement of field experiments and the statistical reduction of the results. (1930) Aylmer Fisher, Ronald, Wishart, John
    • B
  • Gall midges (Cecidomyidae) as enemies of the Tingidae, Psyllidae, Aleyrodidae and Coccidae. (1930) Barnes, Horace Francis
  • On some Factors governing the Emergence of Gall Midges (Cecidomyidæ: Diptera). (1930) Barnes, Horace Francis
  • On the biology of the gall-midges (Cecidomyidae) attacking meadow foxtail grass (Alopecurus Pratensis), including the description of one new species. (1930) Barnes, Horace Francis picture_as_pdf
  • On the resistance of basket willows to button gall formation. (1930) Barnes, Horace Francis
  • A new thrips-eating gall midge, Thripsobremia liothripis, gen. et. sp. n. (Cecidomyidae). (1930) Barnes, Horace Francis picture_as_pdf
  • A Further Study of the Influence of the Proximity of a Solid Wall on the Consistency of Viscous and Plastic Materials. (1930) Blair, G. W. S. picture_as_pdf
  • The Rheology of Soil Pastes. (1930) Blair, G. W. S.
  • The varying effect of lime on grassland with different schemes of manuring. (1930) Brenchley, Winifred Elsie
  • The weed seed population of arable soil: I. Numerical estimation of viable seeds and observations on their natural dormancy. (1930) Brenchley, Winifred Elsie, Warington, Katherine picture_as_pdf
  • Science of the year - 1930 The biological sciences. (1930) Brierley, W. B.
    • C
  • A Note on the Dichotomous Branching of the Main Stem of the Tomato (Lycopersicum esculentum). (1930) Caldwell, J.
  • The Physiology of Virus Diseases in Plants I The movement of mosaic in the Tomato Plant. (1930) Caldwell, J.
  • Note on the phosphoric acid of barley grain. (1930) Crowther, Edward Mortimer
  • Soils and fertilisers. (1930) Crowther, Edward Mortimer
  • The relationship of climatic and geological factors to the composition of soil clay and the distribution of soil types. (1930) Crowther, Edward Mortimer
    • D
  • Studies on the carbon and nitrogen cycles in the soil. III. The formation of natural humic matter. (1930) Du Toit, M. M. S., Page, H. J. picture_as_pdf
    • E
  • On the morphology of the larva of Darcus Parallelopipedus, L. (Copeoptera). (1930) Edwards, E. E.
    • G
  • The Availability of Phosphatic Fertilisers as shown by an Examination Soil Solution and of Plant Growth (With Two Text-figures.). (1930) Greenhill, A. W. picture_as_pdf
    • H
  • Studies in the physical properties of soil. V. The hysteresis effect in capillary properties, and the modes of moisture distribution associated therewith. (1930) Haines, W. B. picture_as_pdf
  • Notes on the culturing of insects for virus work. (1930) Hamilton, M. A.
  • Report of the Committee on soil reaction measurements Pt 1 Results of the comparative investigation on quinhydrone electrode method. (1930) Hissink, D. J.
    • I
  • Observations on some Parasites of Oscinella frit Linn Part 1. (1930) Imms, Augustus picture_as_pdf
  • On the frequency distribution of the means of samples from populations of certain Pearson's types. (1930) Irwin, Joseph Oscar
    • J
  • Studies of the physiological importance of the mineral elements in plants. I. The relation of potassium to the properties and functions of the leaf. (1930) James, W. O.
  • Streak—a virus disease of tomatoes. (1930) Jarrett, P. H.
  • The role of Thrips tabaci Lindeman in the transmission of virus diseases of Tomato. (1930) Jarrett, P. H.
  • The determination of cellulose in straws. (1930) Jenkins, S. H.
  • Decomposition of Keratin by Soil Micro-Organisms (With One Text-figure.). (1930) Jensen, H. L. picture_as_pdf
    • K
  • Studies in crop variation. VIII. An application of the resistance formula to potato data. (1930) Kalamkar, R. J.
  • Aerobic soil bacteria that decompose cellulose. (1930) Kalnins, A.
  • “Single Value” Soil Properties. A Study of the Significance of Certain Soil Constants. IV. A Further Note on the Technique of the “Box” Experiment. (1930) Keen, Bernard Augustus picture_as_pdf
  • Formation of streamers in sedimentation. (1930) Keen, Bernard Augustus, Schofield, R. K.
  • Studies in soil cultivation. V. Rotary cultivation. (1930) Keen, Bernard Augustus, Staff, of the Soil Physics Department picture_as_pdf
    • L
  • Dose-response relationships for infection of potato leaves by zoospores of Phytophthora infestans. (1930) Lapwood, D. H., McKee, R. K.
  • Soil surveys and their utilization. (1930) Lee, L. L.
    • M
  • The relation between the numbers of a soil bacterium and the ammonia produced by it in peptone solutions with some reference to the effect on this process of the presence of amoebae. (1930) Meiklejohn, J.
  • On the causes of swarming in the honey bee (Apis Millifera L.) an examination of the brood food theory. (1930) Morland, D. M. T.
    • N
  • The biological decomposition of plant materials III Physiological studies on some cellulose-decomposting fungi. (1930) Norman, A. G.
    • P
  • Studies on the carbon and nitrogen cycles in the soil. I. Introductory. (1930) Page, H. J. picture_as_pdf
    • R
  • Increased Scion Vigour Induced by Certain Foreign Root-stocks. (1930) Roach, W. A. picture_as_pdf
  • Sulphur as a soil fungicide against the potato wart disease organism. (1930) Roach, W. A.
  • Agricultural developments in South Africa. (1930) Russell, E. J.
  • The Hertfordshire Agricultural Situation can it be improved? Rothamsted Conference RC No 9. (1930) Russell, E. J., Thompson, R. J., Huntersmith, J., Dallas, G., Street, A. W., Enfield, R. R., Prewitt, F. J., Crawford, D.
  • Recent changes in systems of husbandry in England Rothamsted Conference RC No 8. (1930) Russell, Sir Edward, Orwin, C. S., Rayns, F., Long, C. G. H., Porter, J., Reid, J. W., Stewart, W. A., Dowling, R. N., Drewitt, H., Wallace, J. C., Mercer, W. B., Taylor, H. V.
    • S
  • A note on the value of uniformity trials for subsequent experiments. (1930) Sanders, H. G.
  • The Influence of the Proximity of a Solid Wall on the Consistency of Viscous and Plastic Materials. (1930) Schofield, R. K., Blair, G. W. S.
  • Intracellular bodies in plant virus disease. (1930) Sheffield, Frances, Smith, J. H.
  • Intracellular inclusions in mosaic of Solanum nodiflorum. (1930) Smith, J. H.
  • Virus Diseases In Plants I Translocation within the plant. II. The amoeboid intracellular inclusions. (1930) Smith, J. H.
  • Angular leaf-spot disease of cotton. (1930) Stoughton, R. H.
  • Apparatus for the growing of plants in a controlled environment. (1930) Stoughton, R. H.
  • Thionin and orange G for the differential staining of bacteria and fungi in plant tissues. (1930) Stoughton, R. H.
  • The influence of environmental conditions on the development of the angular leaf-spot disease of Cotton. II. The influence of soil temperature on primary and secondary infection of seedlings. (1930) Stoughton, R. H.
    • T
  • The early development of the root nodule of lucerne (Medicago sativa, L.). (1930) Thornton, H. G. picture_as_pdf
  • The influence of the host plant in inducing parasitism in lucerne and clover nodules. (1930) Thornton, H. G. picture_as_pdf
  • The fluctuations of bacterial numbers and nitrate content of field soils. (1930) Thornton, H. G., Gray, P. H. H. picture_as_pdf
  • Physiological studies in plant nutrition. II. The effect of manurial deficiency upon the mechanical strength of barley straw. (1930) Tubbs, F. R.
    • W
  • The Colorimetric Determination of Phosphoric Acid in Hydrochloric Acid and Citric Acid Extracts of Soils. (1930) Warren, R. G., Pugh, A. J. picture_as_pdf
  • Collected records relating to insect migration Second series. (1930) Williams, Carrington Bonsor
  • Records of butterfly migration in East Africa. (1930) Williams, Carrington Bonsor picture_as_pdf
  • On the secular variation of rainfall at Rothamsted. (1930) Wishart, John
  • VII.—The correlation between product moments of any order in samples from a normal population. (1930) Wishart, John
  • The derivation of certain high order sampling product moments from a normal population. (1930) Wishart, John
  • Studies in Crop Variation VII. The Influence of Rainfall on the Yield of Barley at Rothamsted. (1930) Wishart, John, Mackenzie, W. A. picture_as_pdf
  • Studies in crop variation VII. The influence of rainfall on the yield of barley at Rothamsted. (1930) Wishart, John, Mackenzie, W. A. picture_as_pdf