Vysotskaya E.A., Gorbunova N.S., Romantsov R.E.

Assessment of the biological resource of the basic components of the agrocenosis with binary sunflower and Eastern galega crops

The article provides an analysis of binary sunflower crops with eastern galega and typical chernozems as basic components of the agrocenosis from the point of view of soil conservation as a natural resource, as well as increasing the biological productivity of cultivated agricultural plants in the Buturlinovsky district of the Voronezh region. The sunflower yield is significantly influenced by the sowing of a perennial legume crop – eastern galega. Perennial leguminous grasses have an impact on the economic value of the soil cover, which is expressed in such indicators as the thickness of the humus horizon, the percentage of humus, the amount of alkaline hydrolyzable nitrogen. There was no significant effect of eastern galega on the amount of exchangeable potassium and phosphorus. Binary crops contribute to the preservation of soil moisture, due to a denser covering of the soil cover, which prevents the physical evaporation of moisture from the surface. Therefore, the introduction of binary crops leads not only to the stabilization of the soil component, the integrity of the agroecosystem is preserved, the productivity of the agrocenosis increases.

Keywords: AGROECOSYSTEMS, BINARY CROPS, EASTERN GALEGA, SUNFLOWER, ALKALINE HYDROLYZABLE NITROGEN, EXCHANGEABLE PHOSPHORUS, EXCHANGEABLE POTASSIUM, HUMUS