Dankevych Y. Agroecological substantiation of raising spring rape under the conditions of Ukrainian Polissya.

The test object was the process of forming the high level of the yields of spring rape green material and seeds as well as its properties on derno-podzolic soils. The purpose of the investigation is to develop and scientifically substantiate agronomical measures in the system of ecologically safe resource-saving technologies of growing spring rape in the zone of radioactive contamination. The methods used are field and laboratory ones as well as mathematical statistics. The novelty is to investigate, scientifically substantiate and experimentally prove the practical possibilities of forming high yields of spring rape under the conditions of radioactive contamination. On the above basis the system of measures for growing high quality seeds with the content of radionuclides and heavy metals being within the permissible level limits has been developed. The sphere of application is agricultural production.