Fodder productivity of binary mixtures of hungarian vetch and winter triticale depending on elements of the growing technology on the right-bank forest steppe
Due to the selectionof varieties ofwinter triticale, differing in durationof vegetation,it ispossible toextend theterm ofits use inthe rawmaterial conveyor,especially whengrown inthe mixture with hungarian vetch, and providing animals with full forage in the early spring. which isone of the promising directions of intensification of field fodder production. Purpose isto determinethe effect ofsowing ratesand fertilizerlevels on the feed productivity of mixtures of differently ripening varieties of wintertriticale and hungarianvetch. The research was conducted at the Institute of Feed Research and Agriculture of Podillya of the NAAS. Field, laboratory, mathematical-statistical, compara- tive-calculation methods were used. It was established that in the winter triticale and Hungarian vetch yields of green mass in single-breeding and mixtures were determined by sowing rates and fer- tilizer levels. The highest forage yield and the crude pro- tein yield of bean-cereal mixtures were provided with the ratio 50:50% using middle-ripening variety of triticale Polovetske (42.0 t/ha) and 75:50% - early Polianske (46.2 t/ha) with applying mineral fertilizers in a dose of N45R45K45. The productivity of the binary mixtures winter triticale with hungarian vetch, which is regulated by optimum sowing rates and nutrition level, is substantiated. The best sowing rates of triticale with hungarian vetch when grown on green feed is 50:50% with the middle-ripening triticale Polovetske and 75:50% with the early Polyianske, which ensured the forage yield at 42.0 and 46.2 t/ha, respective- ly. Mixed crops of Hungarian vetch with winter triticale provide the crude protein yield of 1,037 and 1,288 t/ha, respectively, with the Polovetske and Polianske varieties when fertilizingin a dose of N45R45K45. Furtherresearch will be aimed at establishing the compet- itiveness of various cereals with hungarian vetch mixtures while growing on green forage and grain processing in order to improvethe technologyfor theircultivation.