SEED PRODUCTIVITY OF EASTERN GALEGA IN THE CONDITIONS OF THE MIDDLE VOLGA REGION

Abstract

In order to obtain seed material of perennial grasses in the second year of herbage life, it is necessary to create favorable conditions and rationally use the arable land in the sowing year. Single-cropsand mixed crops of Eastern galega were studied in the middle zone of the Volga region, the accompanying crop, hereinafter referred to as cover crop, was corn, harvested in the year of sowing from this area as green feed, and at a later date - for silage. Appropriate doses of fertilizers, under the influence of which the plants of corn and Eastern galega increased their productive qualities were also established. The experiment was carried out in grain-grass crop rotation on the fields of Ulyanovsk Research Institute of Agriculture. The crops of Eastern galega of the second and third years of life were compared:how they were affected by the conditions created in the year of sowing, namely, development of plants under the cover of corn harvested at different times for green feed and silage compared to single-crop sowing (control) and doses of fertilizers applied before sowing: unfertilized background (control), N15Р15K15 , N30P30K30. Thus, survivability of Eastern galega plants, before wintering, was greater for crops under the cover of corn, which was harvested at an earlier date, with a dose of applied fertilizers N15P15K15 (on average 60-98%). Growing conditions in this variant were more comfortable for plants of Eastern galega in the year of sowing, seed yield in the second and third years of grass stand life was higher - 3.5 c/ha in 2012 and 3.9 c/ha in 2013. Cover corn crop was obtained from the area in the year of sowing. The higher the dose of fertilizers, the greater the yield of green mass: for N30P30K30 - 40.4 t/ha of corn harvested for green feed and 48.0 t/ha harvested for silage.