title: AGROMINERAL MICRO-FERTILIZING MIXTURE APPLICATION FOR CULTIVATION OF SUNFLOWER ON THE BASE OF CLEARFILD SYSTEM IN THE MIDDLE VOLGA FOREST-STEPPE REGION
abstract: The purpose of the research is the developing of methods for increasing the productivity of sunflower hybrids culti-vated on the basis of the Clearfield system, when applying fertilizers and up-to-date micro-fertilizing Agromineral mixture within the conditions of the middle Volga forest-steppe. One of main factors increasing the economic poten-tial of sunflower is the introduction on a great scale of highly productive hybrids and the improvement of its cultiva-tion technology. Fertilizers ratio
journal: Bulletin Samara State Agricultural Academy