THE EVALUATION OF THE LEVEL OF BIOLOGICAL NITROGEN FIXATION BY NEW INTRODUCED SOYBEAN VARIETIES, THEIR YIELD AND QUALITY OF SEEDS IN THE MINSK REGION OF BELARUS СтатьяTsvetkova Yu.V., Lyashko M.U., Strazhnikova I.I.Инновационные процессы в сельском хозяйстве. 2019. С. 149-155