00501naa#a2200181#i#450# EN\\bibl\4040 20260731101415.5 2073-0462 20141214b2014####ek#y0engy0150####ca RUS RU Resource saving in ridged cultivation of row crops Journal article Kazan Kazan state agrarian University 2014 4 с. Journal article local Kurdyumov Vladimir Zykin Evgeniy naukaru.ru