Formation of ecologically sustainable agrolandscapes on erosion-prone lands

Selection of grass mixture components was based on their resistance to growing conditions, duration of use, and ability to improve agro-physical soil properties.In the first year of use, leguminous grasses (red clover, hybrid clover) predominated, while among grasses, perennial ryegrass was dominant.From the second year onwards, the proportion of legumes decreased, and the dominance of grasses increased.By the fourth year, the grasslands consisted mainly of grass species (90.3-93.9%), while the proportion of legumes was minimal (3.4-6.7 %).The yield of dry matter under perennial multi-component grass mixtures on slightly eroded soils ranged from 9.30 to 10.62 t/ha.Compared to the three-component grass mixture 1 (perennial ryegrass, timothy grass, red clover), a significant increase in dry matter yield (LSD. t/ha -0.50) was ensured by the seven-and twelve-component grass mixtures (variants 5 and 6).On moderately eroded soils, the dry matter yield under grass mixtures ranged from 9.24 to 9.93 t/ha and was higher in multi-component perennial legumegrass mixtures (7-12 components).It should also be noted that dry matter yield on slightly eroded soils was 1.2-12.8% higher than on moderately eroded soils.An analysis of the relationship between yield and species composition showed that grass mixtures with a greater number of components demonstrated better adaptation to growing conditions.The decrease in the proportion of leguminous species was compensated by the increasing role of grasses, which ensured yield stability even in the fourth year of use.The highest productivity was provided by the seven-and twelve-component grass mixtures.