Khaskhachikh M. Influence of density standing of plants and methods of sowing on productivity of sunflower in the post-mowing sowing in the conditions of the East Steppe of Ukraine

The object of researches is the processes of forming and realization of productive potential of plants of sun-flower, processes of their growth and development, forming of productivity of sowing and quality of seeds. Purpose of researches - to set productivity of different after precocity hybrids of sun-flower depending on influencing of density of standing of plants and methods of sowing at growing in the postharvest sowing of north part of east Steppe of Ukraine. Methods of researches - the field; analytical; the laboratory-field; comparative; statistical. Results of researches - For a theory: First for the terms of north part of east Steppe of Ukraine influence of density of standing of plants and methods of sowing on the productive and high-quality indexes of home hybrids of sun-flower in the postharvest sowing is trained. For practice: It is developed and improved elements of technology of growing of sun-flower in the conditions of east of Ukraine, which provide the receipt of maximal productivity of plants, optimization of charges energy resources and lower anthropogenic pressure on surrounding an environment. The sphere of the use is the agricultural enterprises of east of Ukraine.