Devices of creating high productive phytocoenosis with tawdry wormwood on soils of Tersko-Kumsk lowland in Transcaspian area

Abstract

Research Methodology provides for laboratory and field experiments to test the effectiveness of various calendar sowing date in comparison with sowing after the loss of at least 15 mm of rainfall, as well as seeding rules against a background of the same sowing date. The expediency of winter sowing wormwood Taurian in during September and October, but only after the precipitation and deposition of 10 - 15 mm, which is enough to get the guaranteed germination. Selected according to this principle of sowing period produces 24,2 % more plants per 1 m2, 39,4 % increase in the yield of air dry phytomass, compared with the recommended term in the region. It was alsofound that the recommended contact period seeding rate wormwood Taurian can be reduced from 4,5 mln. To 3,5 mln. Germinating seeds per 1 ha shrub without sacrificing productivity. While at the same time the average number of plants with 315 ind / m2 reduced to 288 copies., The average weight of 489g with polukustani - ka increased to 536 g, which allows you to save a biomass yield at current recommended and we offer seeding rate at the same level of - 15,4.15,5 ts/ha. In view of these data and their nutritional value wormwood Tau - ride should be widely used in the surface improving natural grassland on light - brown soils in srednesuglinistyh Terek-Kuma Lowland Caspian.