00467naa#a2200169#i#450# EN\\bibl\620 20240526142110.7 2073-0462 20131024b2013####ek#y0engy0150####ca RUS RU Effect of different tillage options on potato yield Journal article Kazan Kazan state agrarian University 2013 3 с. Journal article local Ryzhikh Lyudmila naukaru.ru