Soil phosphorus activator, and preparation method, application method and application thereof

[0019] The soil phosphorus activator provided by the present invention includes 25-60 parts by weight of Aspergillus fungi, preferably 30-50 parts, more preferably 45 parts by weight. The present invention does not specifically limit the species of the Aspergillus fungus, and it is preferably Aspergillus fumigatus. The present invention does not specifically limit the source of the Aspergillus fumigatus, and conventional commercial products can be used. Wherein, the effective viable number of Aspergillus fungi in the soil phosphorus activator of the present invention is ≥1×10 8 CFU / g. In the embodiment of the present invention, the Aspergillus fumigatus is preferably Aspergillus fumigatus L., the preservation number is CGMCC: 3.8027, and is preferably purchased from the China Common Microbial Species Collection Management Center. In the embodiment of the present invention, the Aspergillus fumigatus is preferably added in the form of an Aspergillus fumigatus inoculum, and the pr

[0041] Example 1

[0042] Nano zinc oxide powder 0.01g, Aspergillus fumigatus 50g, Moses tube handle mold 30g, humic acid 10g, soybean straw powder 12g; the above components are pulverized in a pulverizer and passed through a 150 mesh sieve; The components of the phosphate are fully mixed uniformly to obtain the soil phosphorus activator.

[0043] Among them, the preparation method of Aspergillus fumigatus:

[0044] Weigh 50.0g of Chashi's medium, heat and dissolve in 1000mL distilled water, autoclave at 121°C for 15 minutes, and pour the plate; every 1000g Chashi's medium contains 3.0g sodium nitrate, 1.0g dipotassium hydrogen phosphate, and magnesium sulfate heptahydrate 0.5g, potassium chloride 0.5g, ferrous sulfate heptahydrate 0.01g, sucrose 30.0g and agar 15.0g;

[0045] Pick the Aspergillus fumigatus mycelium and inoculate it into the above-mentioned cooled plate, stand it for 7 days at 28℃, dry it in an oven at 40℃, and crush to obtain the inoculum; the aspergillus fumigatus obt

[0048] Example 2

[0049] Nano zinc oxide powder 0.01g, Aspergillus fumigatus 25g, Moses tuberculosis mold 45g, humic acid 10g, soybean straw powder 20g; the above components are pulverized in a pulverizer and passed through a 150-mesh sieve; The components are mixed thoroughly to obtain a soil phosphorus activator. Among them, the effective viable number of Aspergillus fumigatus is 5.83×10 8 CFU / g; the effective number of spores of P. mosesii is 23 / g.