Lyushnyak N. Agrotechnical methods of increase productivity of grass stands on erosive grounds removed from arable lands under grassing at conditions of Pre-Carpathian.

The object of research - the formation of valuable species structure of the agricultural lands are perennial legumes and grasses at different ways of pre-tillage systems, fertilizers and bio-stimulants on eroded lands for pasture purposes herbage. The aim was to substantiate the scientific and technological methods to develop meadow soils derived from arable land. Methods: Field, visual and measurement-weight, laboratory chemical, mathematical and statistical, сash-statistic. This thesis presents the results of studies that were carried out on the Pre-Carpathian, defined laws of formation of agricultural lands are under the influence of various technological techniques for their cultivation in order to increase productivity and quality of forage. The effect of components of grass-legume herbage, the soil preparation and fertilization on density, botanical and biochemical composition of the feed content in its organic matter and chemical elements, the accumulation of plant mass during the growing season, and economic and energy indicators for their cultivation. The technology of meadow soils, which provides seeding grass-legume mixtures by pre-plant soil heavy disk harrow at a depth of 12 - 14cm and planting grass mixtures with timothy (30%) + fescue cane (20%) + ryegrass (20%) + clover hybrid (35%) + lyadventsa cattle (35% of the total rate of sowing) on the background N60R60K90. Scientific developments have been tested in agricultural production enterprises of Lviv region in area 59 ha. Scope of use - agriculture.