The article provides data on the field experience, which forms the basis of the research work of the Department of Agriculture and the Department of Agriculture of the RSAU - Moscow Agricultural Academy named after K.A. Timiryazev in modern conditions. Long field experience with more than a century of history continues scientific research on permanent crops and in crop rotation on various backgrounds of organic and mineral fertilizers. The data on weediness and of individual variants in 2020 are presented.