Keywords: unused agricultural land, deposit land, turnover, identification, model, engagement, risks

// Мелиорация.– 2022. – №1(99) – P 29–34

Lathyrus sylvestris L. Zhuravushka in a mixture with meadow timothy on peat soil provided an average yield of 358–395 c/ha of green mass or 72.4–79.7 c/ha of dry matter on average for three years. An increase in its seeding rate from 15 kg/ha (0.4 million seeds/ha) to 25 kg/ha (0.7 million seeds / ha) had little effect on the overall yield of the herbage, but increased its safety in the herbage. The Lathyrus sylvestris L. reached its maximum development at 3–4 years of life and its share in the harvest of grass with timothy meadow in the third mowing was 34.8 %. With an increase in the age of the herbage and the seeding rate of the rank, there is a tendency to increase the share of the rank in the crop to 34.8 %. The index of coenotic activity of Lathyrus sylvestris L. in the herbage with timothy meadow increased during the growing season from the first mowing to the third, as well as with the age of the herbage from 0.07 in the second year of life to 0.82 in the fourth.