Effect of applying organic and mineral fertilizers for 50 years on the fertility of a podzolic Chernozem in the central forest steppe of the right-bank zone of Ukraine. Report 9. Effect of regular application of fertilizers in a cereal-beet rotation on the content of nutrients in plants

Martynovich, N.N.; Martynovich, L.I.

Agrokhimiya (2): 38-51


ISSN/ISBN: 0002-1881
Accession: 002810471

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Studies on the contents of nutrient substances in crops of a cereal-beet rotation in Ukraine showed that without application of fertilizers the crops contained on average 1.35% nitrogen, 0.55% phosphorus and 1.23% potassium on a dry matter basis. Under a regime of mineral fertilizer application the contents of these elements increased by 15, 11 and 24%, respectively, while under an organomineral regime the increases were 14, 13 and 28%. Markedly increasing the NPK dose in beet fields or under all crops increased the minimum and maximum NPK contents only in certain crops, while in others there was a decrease; average levels in the crops of the rotation remained unchanged.