INFLUENCE OF MINERAL FERTILIZERS APPLIED TO COTTON AFTER CROPS ON MINERAL NITROGEN IN THE SOIL AND COTTON HARVEST

Abstract

The article highlights the possibilities of obtaining a high (34.6 centners per hectare) yield of raw cotton in result of applying N200P140K100 kg / ha of mineral fertilizers, according to scientifically grounded recommendations of cotton planted after repeated crops of sunflower and mung bean (N60P80K60 kg / ha) in southern part of the Republic of Karakalpakstan at the backdrop of short crop rotations. It is noted that in the soil accumulates more ammonium form than nitrate form.