Abstract
The article presents the results of studies on the effect of mineral fertilizers on the content of Zn, Cu in the soil and winter wheat plants using the No-till technology. In the field experiment, ammonium nitrate (N12P52) and potassium magnesium oxide (K32Mg12S20) were applied during sowing against the background of two additional fertilizing with ammonium nitrate (N34) - N30 at the tillering stage, N70 - at the tube emergence stage. Low content of mobile Zn and Cu compounds was found in the agrochernozem of the southern zone of the Rostov region. The application of ammonium nitrate, ammophos, potassium magnesium oxide does not replenish the reserves of biomicroelements in the soil. The balance of Zn and Cu for all experimental variants was negative: Zn - 115–154 g/ha; Cu - 39.0–56.0 g/ha. The obtained results indicate a violation of the microelement cycle in winter wheat agrocenoses and prove the need to use micronutrient fertilizers to obtain stable grain yields of good quality. Keywords: AGROCHERNOZEM, ZINC, COPPER, WINTER WHEAT, FERTILIZERS, NO-TILL TECHNOLOGY
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