Soybean dedicated biological organic green fertilizer and preparation method thereof

Abstract

The invention discloses a soybean dedicated biological organic green fertilizer which is characterized by being prepared from the following raw materials in parts by weight: 100-120 parts of human and animal excreta, 50-60 parts of corn straw, 35-50 parts of rapeseed cake meal, 25-30 parts of urea, 21-25 parts of ammonium hydrogen carbonate, 35-40 parts of diammonium phosphate, 10-13 parts of a limestone powder, 1-2 parts of zinc oxide, 29-35 parts of animal urine, 17-23 parts of potassium chloride, 24-28 parts of peanut cake meal, 5-7 parts of brown sugar, 5-7 parts of an EM agent, 8-10 parts of a soil improvement agent, and a proper amount of water. The organic fertilizers are fermented and then are mixed with the general chemical fertilizers, and the melting urea is utilized to coating the surface, so that a slow release effect is played, subsequent nutrients for soybean are allowed to be sufficient, the utilization rate of the fertilizer is improved, the fertilization cost is substantially reduced, the yield of the soybean is improved, and economic benefits are also correspondingly improved; and the soybean dedicated biological organic green fertilizer is green and environmentally friendly, and is convenient to popularize and apply.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a special bio-organic green fertilizer for soybeans and a preparation method thereof. Background technique [0002] Soybean is a crop that has its own nitrogen-fixing rhizobia. For a long time, people have paid more attention to the application of phosphorus fertilizer than nitrogen fertilizer. However, due to the characteristics of low utilization rate of phosphate fertilizer, long residual period and accumulation in the soil, a large amount of phosphate fertilizer is used in production year after year, and the long-term accumulation causes the content of available phosphorus in the soil to increase significantly. The results of the fertilizer effect test showed that the effect of increasing the yield of the application of phosphorus fertilizer in farmland was significantly reduced; soybean needs more nitrogen, but the application of nitrogen fertilizer becomes very complicated becaus...

AI Technical Summary

Problems solved by technology

Traditional fertilization can only meet the supply of nitrogen fertilizer in the early stage of soybean growth, but cannot guarantee the nitrogen fertilizer demand in the later stage of soybean growth. During production, nitrogen fertilizer is applied in the later stage, which is difficult to topdress and adds a lot of manual input.

Therefore, the traditional NP ratio, application amount and fertilization method have caused the problems of high fertilizer cost, low utilization rate of phosphorus fertilizer, and low soybean yield.