Формування урожайності сортами ріпаку ярого в умовах східного Лісостепу України

Abstract

The results of 2008-2009 ys studies on the reaction of spring rape cultivars to the sites of mineral fertilization and sowing rates in the eastern part Forest-Steppe of Ukraine are presented. The most high-yielding varieties of spring barley and optimum sowing rates are defined. It has bun established that the plants of  spring rape cause the carry-over of  N at the rate of 44 kg per tone of grain, of P – 16 kg/t and of K – 47 kg/t. For the matter it is necessary to apply mineral fertilizers in during a fall tillage