Biological organic soil-improving nitrophosphate fertilizer and preparation method thereof

The invention provides a biological organic soil-improving nitrophosphate fertilizer. The biological organic soil-improving nitrophosphate fertilizer is prepared from the following raw materials in parts by weight: 85-98 parts of nitrophosphate fertilizer slurry; 0.2-3 parts of a soil improvement auxiliary agent; 0.3-5 parts of an organic material; and 0.1-1 part of a microbial agent. According to the invention, the soil improvement auxiliary agent, the organic material and the microbial agent are respectively injected into different working sections of the nitrophosphate fertilizer, so that the defect of single functional characteristic of a nitrophosphate fertilizer product is overcome, and the soil improvement auxiliary agent can improve the granular structure of soil, loosen soil, retain water, ventilate and increase oxygen supply of root cells; the organic material can increase the content of organic matters in soil, fertilize the soil and reduce nutrient loss; the microbial agent can regulate a rhizosph