THE YIELD OF GREEN MAMURE CROPS HERBAGE IN CROP ROTATION LINK WITHIN IRRIGATION CONDITIONS IN TERSK-SULAKSK SUBPROVINCE

On the basis of the conducted researches and literature review the paper considers soil fertility increase by sowing such crops as seed peas, spring rape and amaranth in the crop period with the subsequent plowing up; their powerful thickened cover suppresses growth and development of weed plants sprouts and increases productivity of the subsequent grain crops in crop rotation link on meadow-chestnut soils of heavy mechanical composition. The final assessment of these crops influence degree after plowing them into the soil as a biological factor is revealed in increasing soil fertility, which ultimately leads to an increase in grain yield of the main spring crops (grain maize, grain sorghum) in crop rotation link within irrigation conditions in Tersk-Sulaksk subprovince