METHODS OF RATIONAL USE OF AGRICULTURAL LAND IN SOYBEAN CULTIVATION IN THE KHABAROVSK KRAY
Soybean is very demanding crop to growing conditions. The realization of the potential of varietal productive qualities in difficult soil and climatic conditions requires the optimization of all factors of plant life. The level of realization of soybean potential productivity in region is determined by heat intensity and availability of moisture as in certain periods of its growth and development, as during growing season in general. Agriclimatic resources of the region allow to produce soybean yield at the level of 8,1-16,3 centners per hectare. The optimization of mineral nutrition by mineral fertilizers application contributes to the stabilization of productivity of the soybean cultivar Ivan Karamanov in adverse weather conditions. The nutrition regime improvement contributes to the rise of variety productivity on 17,7-82,3%. The improvement of phytosanitary situation in soybean crops provides the increase in productivity on no less than 20,9%.