EFFECT OF FERTILIZERS ON HUMUS, TOTAL NITROGEN, PHOSPHORUS AND POTASSIUM IN IRRIGATED TYPICAL SEROZEMS SOILS
Abstract
In this city in the conditions of typical serozems soils with old irrigated heavy sand, by the combined application of mineral and organic fertilizers only a very high positive effect on the amount of humus given learned area in the soil. Moderately supplied with nitrogen and potassium, weakly supplied with phosphorus. Scientific studies were carried out on the basis of an experiment in the conditions of irrigated typical serozems soils of the cotton variety S-6524. The fertilizer application system in the field experiment is presented in table -In the experiment, each located option is 10 m long, 7,2 m wide and has a surface area of 72 m2. The area to be taken into account is 36 m2, the options are systematically arranged in one tier.
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