Soil conditioner for high-phosphorus soil and preparation method thereof

The invention relates to the technical field of soil conditioners, and discloses a soil conditioner for high-phosphorus soil. The soil conditioner is prepared from the following raw materials in parts by weight: 5-15 parts of limestone, 8-12 parts of montmorillonite, 3-8 parts of fly ash, 5-7 parts of blast furnace slag, 12-15 parts of an organic conditioner, 6-8 parts of zeolite, 8-10 parts of farmyard manure, 6-8 parts of plant ash, 6-7 parts of biomass, 1-2 parts of nitrogen fertilizer and 4-8 parts of a phosphorus removal agent. The organic modifier is any one of polyacrylamide, polyethylene glycol and polyvinyl alcohol resin. According to the soil conditioner for the high-phosphorus soil, the PH value of the soil can be increased by adding the limestone, the permeability of the soil can be improved through the farmyard manure, the activity of rhizosphere microorganisms can be improved, insoluble mineral elements in the soil can be converted into soluble nutrients, and therefore the desired purpose is ach