Abstract
During the last few years a field technique has been developed at Long Ashton for determining the nutrient condition of crops by the use of two complementary methods: (a) ‘Visual diagnosis’1 and (b) ‘tissue-tests’2,3. Technique (a) depends upon the appearance of specific symptoms associated with mineral deficiencies, and (b) depends upon the use in the field of rapid colorimetric and turbidity tests for estimating the mineral status of the growing crop.
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Wallace, T., (H.M. Stationery Office, 1943 and 1944).
Plant, W., Jones, J. O., Nicholas, D. J. D., Long Ashton Res. Stn. Ann. Rep., 1944.
Nicholas, D. J. D., Jones, J. O., Long Ashton Res. Stn. Ann. Rep., 1944.
Yates, F., Boyd, D. A., Mathison, I., Emp. J. Exp. Agr., 1944.
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PLANT, W. Survey of Mineral Deficiencies on Tillage Land. Nature 160, 336 (1947). https://doi.org/10.1038/160336a0
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DOI: https://doi.org/10.1038/160336a0
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