PRODUCTIVITY FORMATION OF MEADOW CLOVER DEPENDING ON INTENSIFICATION FACTORS

Abstract

In the first year of life of meadow clover, except for uncovered sowing also carry out sowing under the cover of oatmeal mixture for green forage and spring barley on grain. It was noted that for the period of slanting ripeness of the harvest of leaf masses the oatmeal mixture was 24.8 t / ha without fertilizer with an output of 2.7 t / ha of feed units, on the variant with the addition of P 60 K 90 - 36.4 t / ha and 3.9 t / ha, respectively, while for foliar feeding micro-fertilizers "Quantum Beans" - 38.2 t / ha and 4.1 t / ha respectively. The maximum yield of meadow clover dry matter in the first year of life was noted when applying mineral fertilizers in a dose of P 60 K 90 and performing foliar feeding with Quantum Beans. Thus, in the variant without a cover it was 6.5 t / ha, in the variant with a cover is ovs - 3.5 t / ha, with a cover barley yarn - 3.2 t / ha. In the second year of the meadow clover's life two full crops of leaf-steel mass were received. It was noted that the productivity of the herbage was high in uncovered crops. Thus, in the option without fertilizers yielded 23.9 tons / ha, with the application of potassium phosphate fertilizers - 32.2 tons / ha. When applying foliar fertilizer on the potassium phosphate background, the yield was 36.4 t/ha. The high dry solids yield was distinguished by the application of potash and phosphate fertilizers and rootless chelate treatment. Under these conditions, 6.9 tons per hectare of dry matter were obtained from coverless crops. A slightly lower figure was obtained in the undercut variants. Thus, after the cover of oatmeal mixture was formed 6.7 t / ha of dry matter, and after spring barley on grain - 6.4 t / ha. In total for two years of vegetation of meadow clover, in versions without cover, the yield of digestible protein was within 1.17-1.71 tons / ha, feed units - 9.20-13.54 tons / ha, feed units - 10 46-15.32 tons / ha.