The efficiency and nutritiousness of green material of soy varieties in the conditions of Primorsky region

One-year studies results of fodder qualities of soy-bean varieties recommended for cultivation in Primorsky Region are presented. The researches were conducted in 2016 on the fields of FSBEI HE "Primorskaya State Academy of Agriculture". The section has meadow-brown heavy in texture podzolic soil. Meteorological conditions of 2016 corresponded in varying degrees to biological needs of soy. High moisture content during germination, budding, flowering and beans tying had positive influence on the development of plants. Howev-er, the excess of moisture during the ripening of seeds led to the decrease in seeds productivity. The purpose of the research was to study fodder qualities of soybean varieties, which ensure stable increase in the yield and quality of feed, the productivity and nutritional value of green mass. The experiment comprised 10 varieties of soybeans included in the State Register of Selection Achievements: VIR 14 (St), Ivan Karamanov, Grybsky fodder, Primorskaya 86, Primorskaya 4, Monsoon, Primorskaya 81, Hodson, Primorskaya 96, Primorskaya 13. Soybean varieties were evaluated for phenological parameters, the content of nutrients in green mass, the yield of green and dry mass, chemical composition and the yield of seeds. Minimum period of vegetation was noted in varieties of Ivan Karamanov (Far-Eastern Sci-entific Research Institute of Agriculture) and Primorskaya 13 (Primorsky SRIA). In the conditions of monsoon climate of Primorsky Region and according to the indicators, the following types were distinguished from studied soybean varieties: Primorskaya 86 (Primorsky SRIA), Primorskaya 96 (Primorsky SRIA), which exceeded VIR 14 standard (SSI Far Eastern Ex-perimental Station of All-Russian Research Institute of Plant Growing).