Nitrogen top-dressing requirements of wi
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Michael R. J. Holmes; Alan M. Ainsley
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Article
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1979
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John Wiley and Sons
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English
β 480 KB
## Abstract Fortyβone field experiments were carried out on the spring N topβdressing requirements of winter oilseed rape in the years 1973 to 1977. The experiments were in the main rapeβgrowing areas of England and Scotland, and almost all were on rape crops following one or more cereals. Seed and