00631naa#a2200181#i#450# EN\\bibl\4414 20241218215441.3 2308-8877 20141207b2014####ek#y0engy0150####ca RUS RU Indicators of soil fertility and crop productivity under different methods of primary tillage Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2014 3 с. Journal article local Trofimova T. Korzhov Sergey zh-szf.ru