00607naa#a2200181#i#450# EN\\bibl\13942 20250115050458.3 2073-0462 20161031b2016####ek#y0engy0150####ca RUS RU ANALYSIS OF CROP ROTATION SYSTEMS ORGANIZATION OF AGRICULTURAL COMPANIES OF TYUKALINSKY DISTRICT OF OMSK REGION ON THE LANDSCAPE AND ENVIRONMENTAL BASIS Journal article Kazan Kazan state agrarian University 2016 6 с. Journal article local Marakaeva Tatyana Nozhenko Tatyana zh-szf.ru