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Autor:
Hans Lippold, Hana Mouchova
Publikováno v:
Archives of Agronomy and Soil Science. 38:83-88
Model field experiments were carried out on orthic Luvisols soil in the years 1987, 1988 and 1989, in which winter wheat was fertilized with 15N‐ammonium nitrate in spring. Nitrogen was applied three times at rates of 40 kg N per ha at the beginnin