Plant and Soil Science

The effect of different forms of nitrogen fertilizers, namely ammonium nitrate, urea and ammonium sulphate, on yield formation by rape varieties and hybrids of domestic and foreign selection in conditions of Right Bank Forest-steppe is considered in the work. Spring rape - is a culture of intense type of nutrition, therefore, it needs an optimal ratio of individual elements, including nitrogen. The scheme of the experiment was supposed the introducing under presowing cultivation and in extranutrition nitrogen fertilizers in various forms. In order to solve the set tasks during 2015-2016, we conducted field research in the conditions of stationary field crop rotation of the plant of the Department of Nursery of the NUBiP of Ukraine "Agronomic Experimental Station" (Vasylkivsky District, Kyiv Region, Pshenichne Village). Soils - chernozems are typical. Conducted studies allowed us to establish the expediency of using more effective forms of nitrogen fertilizers in order to increase the yield of spring rape seeds, on average over two years, up to 3,04 t / ha in variety Sirius and up to 3,30 t / ha in hybrid Jerome, which exceeds the control variant on 1,34 and 1.49 t / ha respectively.

nitrogen, fertilizing, nitrogen fertilizers, mineral nutrition, yield