Preparation method of high-efficiency phosphorus-containing product and application thereof

The invention discloses a preparation method of a high-efficiency phosphorus-containing product and an application thereof. The method comprises the following steps: using cracking products of agricultural wastes at a 600-700 DEG C anaerobic environment as biochar, fully mixing a phosphate fertilizer, the biochar and sulfur powder according to the mass ratio of (90-70):(5-15):(5-15) to obtain a phosphate fertilizer mixed material, spraying 20-35 L of a 1.0%-1.5% polyacrylamide solution per 1000 kg of the phosphate fertilizer mixed material, and performing fully stirring and airing to obtain the high-efficiency phosphorus-containing product. Based on the biomass carbon and the sulfur powder as main phosphorus adsorption and activation materials, the biomass carbon and the sulfur powder arefurther compounded with the phosphate fertilizer through polyacrylamide, and thus the effectiveness of the phosphate fertilizer in soil, especially northern calcareous soil and saline-alkaline soil, is improved. 本发明公开了一种高效含磷产