Kuzmich M., Kuzmich L., Osipova A., Saranin Å., Kuznetcov N.

Agroecological substantiation of parametres of soil fertility at cultivation of grain and leguminous cultures

In the conditions of a field experiment researches on revealing of optimum levels of reaction of environment and provision of soil with a mobile potassium for reception of the maximum productivity of grain crops are conducted. It is established that optimum parametres of soil fertility at cultivation of grain and leguminous cultures are not constant and can vary depending on limiting factors. With increase of reaction of environment the potassium fertilizer role increases in an increase yield of cultures and, especially their winter hardiness.

Keywords: LIMING, POTASH FERTILIZERS, REACTION of MEDIUM, SOIL FERTILITY PARAMETERS, PRODUCTIVITY, BREEDS of GRAIN CROPS