ECONOMIC BALANCE OF NITROGEN IN FIELD CROP ROTATIONS DEPENDING ON THE STRUCTURE OF CROPS AND USE OF STRAW

Abstract

The article presents the results of the research conducted in 2016-2018 on the study of the economic balance of nitrogen depending on the type of crop rotation, its structure, as well as the method of using by-products (straw). It’s established that with the movement of straw from the field, the balance with the highest positive value was formed in grain-grass crop rotation and grain grass-growing crop rotation with two fields of clover at the break. The balance of nitrogen in field crop rotations with straw preserved for embedding was formed similarly to the balance with its movement, but with a more positive value.