The influence of seeding rate on rapes yield in the North-Kazakhstan region

The research objective was to determine optimal seeding rate of varieties and hybrids of spring rape for seeds in the conditions of Northern Kazakhstan. The objectives were to determine optimal seeding rate to assess the elements of the structure of the crop and biological yield of oilseeds, to consider meteorological data for growing season and to analyze experimental material, taking into account the provision of plants with moisture and heat. The subjects of the research were varieties and hybrids of spring rape. On experimental fields of the Yesil State Grain and Feed Varietal Testing Site located in the Republic of Kazakhstan, North Kazakhstan Region, Esil District, the village of Yavlenka in 2019, a competitive test of spring rape was carried out, represented by 5 varieties: Geros, Maykudyk, Hunter, Machaon and 3 hybrids: Caliber, Bilder, GEN0009. The study of varieties and hybrids was carried out against the background of the predecessor - bare fallow, according to several seeding norms, namely 2, 2...