Nitrogen balance and potato productivity as a function of the level of the development of soddy-podzolic soil and time of the application of nitrogen fertilizers

Kidin, V.V.; Zamaraev, A.G.

Agrokhimiya (10): 3-12


ISSN/ISBN: 0002-1881
Accession: 009099587

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The effects of the level of the development and preceding fertilization of soddy-podzolic medium loamy soil on potato productivity and nitrogen-14 ammonium nitrate balance were studied in a field stationary experiment during 7 years. Potato productivity depended to a large extent on soil fertility and time of fertilizer nitrogen application. The effectiveness of fertilizer nitrogen and the structure of its balance were approximately the same in medium- and well-developed soddy-podzolic soil.