Leaf analysis as a guide to the nutritio
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C. Bould; R. I. Parfitt
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Article
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1972
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John Wiley and Sons
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English
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## Abstract A study was made, by means of a factorial sand culture experiment, of the main effects and interactions of varying initial levels of N and P and of supplementary levels of N and P applied in July, on shoot growth, blossom number, fruit set, berry weight and crop yield of black currants