00551naa#a2200181#i#450# EN\\bibl\5943 20240916215921.1 2073-0462 20150325b2015####ek#y0engy0150####ca RUS RU ASSESSMENT OF BIOLOGICAL AND CHEMICAL FERTILIZERS INFLUENCE ON PRODUCTIVITY OF SPRING WHEAT HARD Journal article Kazan Kazan state agrarian University 2015 4 с. Journal article local Amirov Marat Fuatovich Amirov Ayrat naukaru.ru