00681naa#a2200193#i#450# EN\\bibl\72979 20241126172909.2 2073-0462 20231230b2023####ek#y0engy0150####ca RUS RU SPATIAL STRUCTURE OF WEED CONTENSION OF GRAIN-GRASS-ROW CROP ROTATION IN THE NORTH-WEST OF RUSSIA Journal article Kazan Kazan state agrarian University 2023 7 с. Journal article local Сорные растения. 632.51 Севообороты. Плодосмен. 631.582 RUS Shpanev Aleksandr Mihaylovich Smuk Vasiliy Vasilievich naukaru.ru