Published in Scientific Papers. Series A. Agronomy, Vol. LXIV, Issue 2
Written by Nikolay CHEKAEV, Yulia BLINOKHVATOVA, Nikolay SMOLIN
The article presents the results of studies on the study the No-till technology influence depending on mineral fertilizers on the change in the agrochemical parameters of leached chernozem. Studies have shown that the seven-year use of No-till technology without fertilizers led to a decrease in the content of alkaline hydrolyzable nitrogen in leached chernozem by 10.1-13.7 mg/kg of soil, mobile phosphorus by 10.3-16.0 mg/kg, mobile potassium by 9.5-13.1 mg/kg of soil. The application of mineral fertilizers in the form of ammonium nitrate, sulfoammophos and ammophoska increased the content of alkaline hydrolysable nitrogen in the 0-30 cm layer by 12.1-13.6 mg/kg. The content of mobile phosphorus increased only in the 0-30 cm layer in the variants with the use of phosphorus-containing fertilizers by 17.7-19.9 mg/kg, and the content of mobile potassium in the variant with the potassium-containing fertilizer by 3.7-12.3 mg/kg of soil. The use of complex fertilizers such as sulfoammophos and ammofoska did not lead to a sharp decrease in pH. An increase in acidity was observed only in the variant with the use of ammonium nitrate.
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