Studying various breeds of spring rape grown for green mass and grain in the conditions of the Vologda oblast

We present the research results on studying foreign breeding of spring rape with the use of microbiological preparation and mineral fertilizer on the derno-podzolic soil at the experimental field of the Northwestern Dairy Farming and Grassland Management Research Institute -separate subdivision of VolRC RAS, situated in village Dityat’evo in Vologodsky District. The purpose of the research is to study various breeds of spring rape on green mass and grain in the conditions of the Vologda Oblast. The relevance of the research is due to the necessity to select promising breeds and technological methods of cultivating spring rape. The novelty of the research is that for first time on the derno-podzolic soil for the conditions of the Vologda Oblast, we use biopreparation for modifying mineral fertilizer in cultivating breeds and hybrids of spring rape. The square of the experimental plot is 10 m2; the replication is three times. We study three hybrids of spring rape: Joy KWS, Jerome and Jazz KWS on various conditions (with mineral fertilizers N90P60K60, with microbiological preparation on the basis of the bacterial culture Bacillus subtilis and mixed conditions with modification of mineral fertilizers with preparation based on gram-positive spore-forming bacterium Bacillus subtilis). As a result, we have revealed that when sowing in mixed conditions with mineral fertilizer and biopreparation, the yield of green mass and seeds of spring rape increases. Hybrids Joy KWS (2.1 t/ha), Jazz KWS (2.0 t/ha) and Jerome (1.9 t/ha) formed the highest seed yield. The spring rape hybrids (Joy KWS, Jazz KWS and Jerome) provided the collection of green mass of 17.9-19.8 t/ha, dry matter - 3.61-4.13 t/ha.