00624naa#a2200205#i#450# EN\\bibl\4841 20250115063532.3 2073-0462 20141225b2014####ek#y0engy0150####ca RUS RU SECURITY OF MACRONUTRIENTS SUPPLY AND FORECASTING OF SPRING WHEAT PRODUCTIVITY IN THE REPUBLIC OF TATARSTAN Journal article Kazan Kazan state agrarian University 2014 3 с. Journal article local Davlyatshin Ilfrit Lukmanov Anas Avvakumov Oleg Badikov Ayrat naukaru.ru