Number of items: 66.
Article
Manurial experiments with spring barley on chalk soils in Southern England. (1977)
Johnson, P. A., Boyd, David A., Sparrow, P. E.
Experiments on the manuring of maincrop potatoes on soils of Ross Series. (1976)
Farrar, K., Boyd, David A.
Fertilizer requirements of potatoes in the Vale of Eden. (1976)
Archer, F. C., Victor, A., Boyd, David A.
Fertilizers for maincrop potatoes on Magnesian Limestone soils: experiments in Yorkshire 1966-71. (1976)
Webber, J., Boyd, David A., Victor, A.
Nitrogen requirement of cereals .1. Response curves. (1976)
Boyd, David A., Yuen, L. T. K., Needham, P. H.
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Nitrogen requirement of cereals 2. Multilevel nitrogen tests with spring barley in southwestern England. (1976)
Needham, P. H., Boyd, David A.
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Using response curves to estimate the effect on crop yield and profitability of possible changes in fertilizer recommendations [sugar-beets, barley, potatoes] [1976]. (1976)
Eagle, D. J., Russell, R. D., Boyd, David A., Draycott, A. P.
Response of sugar-beet to potassium and sodium fertilizers. (1974)
Durrant, M. J., Draycott, A. P., Boyd, David A.
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Developments in field experimentation with fertilizers. (1973)
Boyd, David A.
Manuring of potatoes on fen silt soils in holland, lincolnshire. (1973)
Berryman, C., Batey, T., Caldwell, T. H., Boyd, David A.
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Tests of long-term residues of phosphorus fertilizer. (1972)
Boyd, David A., Williams, J. H., Forbes, N.
Residual phosphate experiments on experimental husbandry farms. (1971)
Williams, J. H., Boyd, David A., Farrar, K.
The relationship between soil phosphorus and response by sugar beet to phosphate fertilizer on mineral soils. (1971)
Draycott, A. P., Durrant, M. J., Boyd, David A.
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Multi-level nitrogen tests for cereals. (1970)
Boyd, David A.
Nitrogen requirement of sugar beet grown on mineral soils. (1970)
Boyd, David A., Tinker, P. B., Draycott, A. P., Last, P. J.
Some recent ideas on fertilizer response curves. (1970)
Boyd, David A.
Experiments on the P and K requirements of barley. (1968)
Boyd, David A., Webber, J., Hill, J
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Experiments with ley and arable farming systems. (1968)
Boyd, David A.
The effect on yield of maincrop potatoes of different methods of fertilizer application. (1968)
Boyd, David A., Hill, J. R., Batey, T.
A type of farming map based on agricultural census data. (1968)
Church, B. M., Boyd, David A., Evans, J. A., Sadler, J. I.
Analytical methods for potassium and their correlations with crop response - Soil potassium and magnesium. (1967)
Boyd, David A., Frater, A.
Placement of fertilizers for potatoes. (1967)
Batey, T., Boyd, David A.
Statistics of crop responses to fertilizers - rome-food-and-agricultural-organisation. (1967)
Boyd, David A.
The Saxmundham rotation experiments: rotation I. (1966)
Trist, P. J. O., Boyd, David A.
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The Saxmundham rotation experiments: rotation II, 1899–1952. (1966)
Boyd, David A., Trist, P. J. O.
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Types of fertilizers used on farm crops in England and Wales. (1966)
Boyd, David A., Church, B. M., Hills, M. G., Heafield, T. G.
Two decades of surveys of fertilizer practice. (1965)
Yates, Frank, Boyd, David A.
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The relationship between crop response and the determination of soil phosphorus by chemical methods. II Soil Phosphorus. (1965)
Boyd, David A.
Charolais trials in England and Wales. Interim report on comparisons under intensive feeding systems. (1964)
Smith, W. R., Boyd, David A.
Fertilizer experiments on maincrop potatoes 1955–61. (1964)
Boyd, David A., Dermott, W.
Fertilizer experiments on maincrop potatoes 1955–61. (1964)
Boyd, David A., Dermontt, W.
Costs and returns for reseeded hills in Montgomeryshire. (1963)
Ellison, W., Boyd, David A., Church, B. M.
Fertilizer use on grassland in England and Wales. (1963)
Boyd, David A., Church, B. M., Hills, M. G.
Fertilizer practice in England and Wales II Manuring of cereals. (1962)
Church, B. M., Boyd, David A., Hills, M. G.
The Rothamsted Ley-arable Rotation Experiment. (1962)
Boyd, David A., Cooke, George William, Dyke, George V., Moffatt, J. R., Warren, R. G.
Current Fertiliser Practice in Relation to Manurial Requirements. (1961)
Boyd, David A.
Fertiliser responses of maincrop potatoes A re‐examination of the experimental evidence. (1961)
Boyd, David A.
Fertilizer practice in England and Wales I General features of fertilizer consumption 1956-7. (1961)
Boyd, David A., Church, B. M., Hills, M. G.
Series of experiments. (1961)
Boyd, David A.
A study of the peat fenlands with particular reference to potato manuring. (1961)
Pizer, N. H., Wright, H. A., Cadwell, T. H., Hargrave, J., Burgess, G. R., Cory, V., Boyd, David A.
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Sampling surveys in agriculture. (1960)
Boyd, David A.
The effect of farmyard manure on fertilizer responses. (1959)
Boyd, David A.
Some results of an experiment to compare ley and arable rotations at Woburn. (1958)
Mann, Harold Hart, Boyd, David A.
Manuring of sugar beet. (1957)
Boyd, David A.
A Scrutiny of the British Potato Crop. (1957)
Boyd, David A.
The fertilizers requirements of sugar beet. (1957)
Boyd, David A., Garner, H. V., Haines, W. B.
The progress of improvement on upland and hill farms in England and Wales. (1955)
Ellison, W., Boyd, David A., Church, B. M.
Influence of fertility levels on grassland output A review of fertilizer experiments on grassland in relation to current fertilizer usage. (1954)
Boyd, David A., Lessells, W. J.
The effect of seed rate on the yield of potatoes. (1954)
Boyd, David A., Lessells, W. J.
Possibilities of marginal land reclamation. Some results of a survey in England and Wales. (1952)
Boyd, David A., Ellison, W.
Rothamsted experiments on field beans 1. Manuring and cultivation of field beans. (1952)
Boyd, David A., Cooke, George William, Garner, H. V., Moffatt, J. R.
The effect of seed-rate on yield of cereals. (1952)
Boyd, David A.
The place of statistics in field experiments. (1952)
Boyd, David A., Dyke, George V.
Economic and statistical aspects of vegetable an animal foods. (1951)
Boyd, David A.
The survey of fertilizer practice. An example of operational research in agriculture. (1951)
Yates, Frank, Boyd, David A.
Maincrop potato growing in England and Wales. (1950)
Boyd, David A., Dyke, George V.
The effect of potassium on crop yield. (1950)
Boyd, David A.
Experiments with leys and permanent grass. (1949)
Boyd, David A.
The relative yields of different crops in terms of food and their responses to fertilizers. (1949)
Yates, Frank, Boyd, David A.
The residual manurial value of feeding stuffs consumed on grass. (1949)
Boyd, David A., Crowther, Edward Mortimer, Moffatt, J. R., Yates, Frank
The Stock-Carrying Capacity of Farms. (1946)
Kempthorne, Oscar, Boyd, David A.
The manuring of beans and peas. (1946)
Boyd, David A.
The manuring of farm crops: some results of a survey of fertilizer practice in England. (1944)
Yates, Frank, Boyd, David A., Mathison, I.
Influence of changes in level of feeding on milk production. (1942)
Yates, Frank, Boyd, David A., Pettit, G. H. N.
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The estimation of Rothamsted temperature from the temperature of Oxford and Greenwich. (1939)
Boyd, David A.
Weedkiller usage in England and Wales - information form surveys of farm practice. (1920)
Boyd, David A.
This list was generated on Sun Mar 29 02:11:12 2026 BST.
