Effects of fertilisers and farmyard manure on the copper, manganese, molybdenum and zinc removed by arable crops at Rothamsted.

Autor:	Williams, R. J. B., Stojkovska, A., Cooke, G. W., Widdowson, F. V.
Zdroj:	Journal of the Science of Food & Agriculture; Oct1960, Vol. 11 Issue 10, p570-575, 6p
Databáze:	Complementary Index
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