Insufficient management of land of agricultural purpose, which have seen recently, leads to worsening of the quality structure of the soil, its degradation and reduction of fertility. Common thing was a short-term lease of land and growing monocrops such as sunflower during several years together (planted area under sunflower grew by 3.2 times from 1990 to 2012 (from 1636 ha to 5194 ha). Ukraine has taken the first place in the world since 2009 by the amount of production of sunflower seeds. 20% of the world acreage under sunflower crops is concentrated in the country. However, yielding capacity of oil crops in Ukraine is much lower than in European countries. The causes of low productivity are inobservance of basic requirements of crop rotation and technology of crop planting as well as slight attention to hybrid selection and quality of seeds.When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/36215
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