Some technological elements of spring rapeseed cultivation in southern forest-steppe of Western Siberia

Trials on specification of separate technological elements of spring rapeseed cultivation were conducted on Siberian ex-perimental station of VNIIMK in 2008-2009. On preliminary data, the sowing at the period 15-25 of May with sowing rate 2.2-2.5 mln seeds ha-1 provides the maximal seed yield of spring rapeseed. Application of a mix of growth regulators Gumi M, 1 l ha-1 + Fitosporim, 1 l ha-1, during budding promoted increase of spring rapeseed seed yield. The maximal increase of seed yield was at application of N40 during budding and water soluble microfertilizer Kemir, 0.5 l ha-1. The greatest productivity and oil yield were received at direct cleaning with preliminary desiccation by reglon super, 2 l ha-1.