Productivity and economic efficiency of technologies of spring rapeseed cultivation in conditions of the Central black earth region

The efficiency of mixed herbs crop technology for spring rapeseed to obtain seeds using certain doses of complete mineral fertilizer (NPK) 40 and (NPK) go, the main soil processing methods (soil overturn ploughing, chisel and zero tillage with or without herbicides), all these aspects have been studied at the Federal State Budgetary Scientific Institution All- Russian Rapeseed Research Institute (2007-2010). The impact of the studied rapeseed cultivation technologies on its yield was determined by the weather conditions during its vegetation. The highest yield of rapeseed in a favorable moisture conditions in 2007 and in dry conditions in 2010 was provided by the technology with ploughing together with the herbicide and fertilizer application, where in the first case (NPK)go application was optimal, and in the second case (NPK) 4o application gave the best results. In the conditions of insufficient moisture in 2008-2009 the optimal productivity was obtained when using the technology with chisel application together with a herbicide and (NPK) S0. In average for the years of research (2007-2010) the rapeseed cultivation technologies with ploughing, chisel, herbicide and (NPK) 4o application proved to be the most efficient.