A phosphorus-rich high-efficiency compost product prepared by biological phosphorus accumulation and method thereof
A phosphorus-enriching and composting technology, applied in the field of organic solid waste recycling, can solve the problem that the available phosphorus content has not been effectively improved, and achieve the effects of improving bioavailability, realizing reuse, and improving adaptability
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Embodiment 1
[0027] Use solid waste such as household garbage and wood chips as compost materials, adjust the carbon-to-nitrogen ratio (C / N) to about 25, and the moisture content to be about 60%. Add phosphate rock powder with a mass ratio of 10%, and add Bacillus 30 -35%, Pseudomonas 15-20%, Weissella 5-10%, Mycobacterium 5-10%, Corynebacterium 10-15%, Enterococcus 5-10%, grams Phosphorus solubilis complex bacteria agent composed of 10-15% of Lebsiella and 5-10% of Streptomyces.
[0028] Three groups of different components were selected for processing:
[0029] The first group (A1) was inoculated with 3% phosphate-solubilizing bacteria compound bacterial agent at the initial stage of composting, and the materials were mixed evenly for aerobic composting;
[0030] Compared with A1, the second group (A2) added 10% biochar at the beginning of composting on the basis of inoculation of phosphate-solubilizing bacteria compound bacterial agent, and other treatment methods were consistent with ...
Embodiment 2
[0034] The A2 and A3 compost products among the embodiment 1 are applied to the wheat planting greenhouse with 40kg / ha compost phosphorus equal amount to carry out the experiment, and carry out simulated rainwater leaching every week, when wheat is harvested, detect current season wheat average output and The content of water-soluble phosphorus and other available active phosphorus in the soil changes. The results (Table 1) show that although the available active phosphorus content of the A2 phosphate fertilizer treatment is slightly higher than that of the A3 phosphate fertilizer treatment at the initial stage, there is little difference between the two phosphate fertilizer products on the average yield of wheat. It shows that the A3 treatment and the A2 treatment are close to the phosphorus fertility of wheat growth, but from the comparison of the available active phosphorus content of the final soil, it can be seen that the soil of the A3 compost product is significantly high...
Embodiment 3
[0040] A kind of method of the phosphorus-rich high-efficiency compost product prepared by biological phosphorus accumulation of the present invention comprises the following steps:
[0041] Step 1. Mix the organic solid waste with phosphate-solubilizing bacteria composite bacteria agent, phosphate rock powder and biochar evenly, and then perform aerobic composting treatment, wherein the phosphate rock powder, biochar and phosphorus-accumulating bacteria composite bacteria agent account for The dry weight ratios of the above-mentioned organic solid wastes are 5%, 5% and 1% respectively;
[0042] Step 2. After the aerobic composting is carried out to the cooling period, that is, the temperature drops to 45° C., add the phosphate-solubilizing bacteria compound bacterial agent again and stir and mix evenly. 3% of the mass of the dry weight of the material;
[0043] Step 3: When the aerobic composting is close to the decomposing period, that is, the temperature is lowered and mai...
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