SOIL FERTILITY ENHANCING METHOD Russian patent published in 1997 - IPC

Abstract RU 2093001 C1

FIELD: agriculture. SUBSTANCE: method involves applying wastes of mineral resource industry, such as Callovian clay, used as soil-fertilizing material, preliminarily ground to fine-dispersion fraction of 0.2-0.3 mm. Clay is applied below arable layer in an amount of 15-20 t per 1 hectare. EFFECT: increased efficiency, simplified method and improved quality of soil. 1 tbl

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RU 2 093 001 C1

Authors

Stifeev A.I.

Chalobjants S.A.

Berezina L.V.

Dates

1997-10-20Published

1995-05-23Filed