Formation of the basic biochemical indicators of winter wheat grain quality on the fertilizers background and predecessors

According to the many years of research results in a stationary field experiment on southern chernozems, it has been shown that the systematic use of fertilizers for black and green fallow provides the production of winter wheat grains with protein and gluten that meets the requirements of the first class (protein is not ≤14.0%, gluten is not ≤28, 0%); for MBC corn, winter rapeseed and winter wheat - the requirements of the second class (protein content is not ≤12.5%, gluten is not ≤23.0%). For the zone of the Black Sea steppe of Ukraine, the payback options of an active substance unit of organic, mineral and organo-mineral fertilizers are determined by the growth of protein and gluten content in winter wheat grain.