Abstract
The article presents studies in potato agrocenoses and an assessment of the gray forest soil of the Ryazan region using various levels of mineral and organomineral nutrition. It was found that to achieve an average level of stability, the buffering value of agro-gray soil should not be lower, according to the adsorption isotherm at a concentration point of 10 mM/l, 2 l/kg for zinc, copper, cadmium and lead. Exceeding the PBSgm value of 2-4 l/kg means a transition to a high level of stability. In the experiment on potato yield, the maximum yield was obtained on the variant with the action of an organomineral fertilizer system – 283.7 c/ha, which is 114.5 c/ha more than on the control variant (without fertilizers). We note the high yield obtained according to the variant with the action of the organomineral fertilizer system (248.2 c/ha, + 79.0 c/ha), which indicates the high efficiency of nutrition in the potato agrocenosis. Keywords: SOIL, POTATOES, NON-CHERNOZEM ZONE, POTATOES, YIELD, FERTILIZER
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