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在乌克兰共和国顿巴斯条件下,产量的限制因素是土壤中的水分、特别是春季有效水的贮存量。这些有效水主要是在上年的9—12月份形成的。它决定土壤氮的可利用性、在土壤
Under the conditions of Donbas in the Republic of Ukraine, the limiting factor for production is the amount of soil moisture, especially the amount of available water in spring. These effective waters were mainly formed in September-December of the previous year. It determines the availability of soil nitrogen in the soil