Modern approaches to production of high-quality spring rape

Abstract

Abstract Spring rape is the main oilseed crop in the non-chernozem zone of Russia, which includes Ryazan region. The area with the crop has increased to 60 thousand ha in the last five years. Rape, being an important oilseed crop, belongs to feed crops of the region. Sale of oilseeds brings agricultural enterprises high profit from the crop production industry. Clearfield technology of rape growing was studied on gray forest loamy soil in Ryazan region in comparison with conventional oilseed production technology. Clearfield technology is the combined action of Nopasaran herbicide and the use of special hybrids which are resistant to this herbicide. High crop efficiency does not depend largely on weather conditions, mainly due to activity of the two active substances, which determine the novelty and relevance of the studies. According to the research results, the highest average spring rape yield in the experiment was obtained at the first sowing period in the 1st decade of May. It was 20.8 dt/ha for hybrid Salsa KL. The maximum crop yields were observed on options using Clearfield, regardless of the sowing period. On average, the growth, development, yield and its structure of domestic Ratnik variety were not inferior to Ozorno hybrid. Sowing in the first decade of May can be recommended as the most productive one for spring rape in the southern part of the Non-Chernozem Zone of Russia.