PRODUCTIVITY OF HAYLAGE MASS OF ANNUAL LEGUM-CEREALS MIXTURES DEPENDING ON THE COMPOSITION AND ELEMENTS OF AGROTECHNOLOGY UNDER CONDITIONS OF CLIMATE CHANGE IN THE CENTRAL NON-BLACK EARTH REGION

The article presents the results of 7-year studies on the reaction of annual legume-cereal mixtures grown for haylage to changes in meteorological conditions during the period of sowing - mowing maturity, the use of mineral fertilizers and their combination with non-root feeding with biostimulants with microelements. Vetch and pea-cereal mixtures with spring wheat and oats formed the maximum productivity level under excessive moisture (HTC ˃2.5), provided the production of 11-14 t/ha of dry mass with the accumulation of 1.9-2.7 t/ha of crude protein with the energy value of 10.2-10.7 MJ/kg in the variant with pre-sowing application of N30-45 against the background of Р50К75. For lupine-cereal mixtures of various compositions, moisture conditions close to the average long-term values (HTC 1.30) were preferable - the yield of 7.2-8.2 t/ha, the accumulation of crude protein of 0.94-1.16 t/ha with the energy value of 8.9-9.6 MJ/kg were created against a natural nitrogen background with the autumn application of Р60К60. Changes in moisture supply away from the optimum reduced the productivity of legume-cereal mixtures and required an increase in the dose of nitrogen fertilizer to achieve the highest indicators. The effect of a combination of fertilizers and biostimulants on the productivity of lupine-cereal mixtures under near-average perennial moisture conditions (2023-2024, HTC 1.27) was contradictory. It is necessary to continue research under different moisture supply with an expansion of the composition of mixed crops and the range of biostimulants.

legume-cereal mixtures, Central Non-Black Earth Region, hydrothermal coefficient, productivity, fertilizer, biostimulants