THE INFLUENCE OF SOIL PROPERTIES AND MINERAL FERTILIZERS ON YIELD OF MUSTARD PROFI VARIETIES

Abstract

The paper presents for the first time the results of studies conducted on the southern chernozems of the steppe zone to study the influence of mineral nutrition conditions and nitrogen-phosphorus fertilizers on the productivity and quality of the mustard Profi variety.
Field experiments were conducted at a site with a humus content of 3.8%, gross nitrogen 0.25-0.30%, 10-11 mg/kg of nitrate nitrogen, 15-20 mg/kg of mobile phosphorus, 35-50 mg/100 g of potassium. The reaction of the soil solution is 8,0-8,1. In the conditions of the steppe zone, the effectiveness of phosphorus fertilizers depended on the initial content of mobile phosphorus in the soil in a layer of 0-20 cm: compared with the control variants, the highest increase was formed at the level of 31.7 and 32 mg/kg, respectively. As studies have shown, the Profi variety turned out to be more demanding on the content of basic nutrients in the soil. With an increase in the content of P2O5 according to the experimental variants, the increase in the yield of mustard seeds increased from 3.4 to 6.6 c/ha. A strong correlation has been established between the content of mobile phosphorus in the soil and the productivity of the Profi mustard variety, which makes it possible to accurately identify phosphorus deficiency. Determination of the optimum phosphorus content in the soil will ensure the formation of the maximum possible yield and high economic efficiency.