Aralov O. Formation of productivity of spring vetch depending on the time of sowing and rate of seeding in conditions of the right-bank Forest-Steppe zone

The processes of growth, development and formation of photosynthetic, symbiotic, feed and seeds productivity of new varieties of spring vetch, depending on the methods of technology of cultivation including time of sowing and rate of seeding Objective was to improve the technology of cultivation of spring vetch in conditions of the right - bank Forest-Steppe zone of Ukraine, including the optimal time of sowing and rate of seeding for varieties of different precocity. Research Methods - field, visual, measurement-weight, physiological; biochemical, thermostat-weight and calculated. The thesis presents the results of studies on the characteristics of the growth, development and formation of yield capacity and individual productivity of spring vetch depending on the effect of time of sowing and rate of seeding. in conditions of the right - bank Forest-Steppe zone of Ukraine. The varietal reaction to the formation of the photosynthetic and symbiotic apparatus depending on time of sowing and rate of seeding is established. The correlation and regression relationships between yield capacity of spring vetches seeds and area of leaf surface, photosynthetic potential, pure productivity of photosynthesis and accumulation of dry matter are defined. The variability of indices of chemical composition of seeds and green mass of spring vetch depending on the basic technological methods of cultivation is installed. Bioenergetic and economic evaluations of models of technology of cultivation are conducted and their level of competitiveness is installed. Implemented - agricultural farms in Vinnitsa region of Ukraine an area of 13.5 hectares. Sector - agriculture.