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В период 1980-1982 гг. проводился сосудный опыт с двумя факторами: Т - почва отобранная с двух местообитаний многолетнего полевого опыта после картофеля в севообороте: картофель - озимая пшеница - кормовые культуры - яровой ячмень, а также после ячменя в севообороте: овес - озимая пшеница - озимая рожь - яровой ячмень; II - способ стерилизации: 1 - контроль (без стерилизации), 2 - стерилизация водяным...
The N, P, K, Ca and Mg content was analyzed in winter wheat and summer barley cultivated in the following crop rotations: A - 50% of cereals, 25% of potatoes, 25% of fodder crops, В - 75% of cereals, 25% of potatoes, С - 75% of cereals, 25% of fodder crops, D - 100% of cereals. Plants for analyses were taken in 1974- 1979 (the second crop rotation) in the tillering, shooting, ear-forming and full...
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