EFFICIENCY OF DEFECATE IN CROP ROTATION ON THE MEADOW-BROWN BLEACHED SOILS OF PRIMORSKY KRAY

The article has given the study results of wheat and soybean response to mineral fertilizers and defecates. The researches revealed that defecate influenced on the height of soybean formation, increasing the amount of beans through the optimization of losses. It has been determined that 1 ton of defecate per ha formed bean productivity with fertilizing of 60 kg/ha. The joint application of mineral fertilizers and defecate did not give the seed productivity increase in comparison with their separate application, because they formed an excessive vegetative mass and gave insufficient formation of generative plant organs. The effect of defecate and its efficiency increases with deepening of the arable layer of soil. Due to the application of defecate and fertilizers during soil plowing on 35 cm, the root system of the crop developed more intensively and formed higher yields. It has been estimated that the application of 1.0 ton of defecate per ha during three years gave the wheat increase of 2.6 t/ha, the soybean increase of 3.5 t/ha on average and the income for this period was 9700 rub/ha (the prices of 2013). The application of defecate with the increase of the arable layer of soil to 35-40 cm gave the productivity increase of the crops in comparison with the standard: in 2011 the wheat productivity increased on 2.2 t/ha; in 2012 the buckwheat productivity increased on 3.3 t/ha; in 2013 the soybean productivity increased on 2.1 t/ha. The application of defecate in the field crop rotation is economically more profitable than the application of fertilizers because of its significant difference in cost.  

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