Corn productivity for grain in the short-rotary cultivation of the left bank forest-steppe depending on the fertilizer system

The study was conducted in the subzone of unstable humidification Forest-Steppe on chernozem typical low-humus Panfil research station NSC «Institute Agriculture NAAS».The aim is to establish influence structure, set and placement field crops a 4-field crop rotation for 100 % grain saturation overall productivity, yield quality corn particular.The technology growing experiment generally accepted recommended area.Varieties hybrids agricultural entered into State Register were sown experiment. Chemical plant protection products used production competitive commodity cereals.The results studies long-term stationary experiment, established 2001, rotations chernozems moisture Left Bank Forest-Steppe, convincingly show that highly specialized farms most rational this area are rotations. with (winter wheat peas-corn spring barley grain) using various fertilizer systems (without fertilizers), mineral (with introduction N60P60K60), organo-mineral (NPK + by-products predecessor), organic (by-products predecessor)). depended system range 5.86–8.30 t/ha. Productivity harvesting from 1 ha arable land was: – 4.54–6.29 tons, fodder units –7.48–10.47 tons; digestible protein 0.60–0.84 tons. economic efficiency short-rotation rotation, depending system, is: relatively net profit 16.04–21.34 thousand UAH/ha, level profitability –112 –180 %.