Method for improving soil by sludge earthworm casts
A technology for improving soil and vermicompost, applied in land preparation methods, sewage/sludge fertilizers, applications, etc., can solve problems such as lack of research on land use, and achieve the effect of resource utilization, simple method, and easy operation.
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[0026] The first step is to choose the ratio of vermicompost:
[0027] ①Under laboratory conditions, spread fresh sludge vermicompost and farmland soil on a hard surface covered with plastic film or cement, and air dry for three weeks in a natural state to crush the air-dried sludge vermicompost and farmland soil After sieving, air-dried sludge vermicompost and air-dried farmland soil are obtained.
[0028] ②Take a certain quality of air-dried sludge vermicompost and air-dried farmland soil and dry them to a constant weight at 105°C, calculate the moisture content of the two, and obtain the drying weight of air-dried sludge vermicompost and air-dried farmland soil from the moisture content.
[0029] ③Mix air-dried sludge vermicompost and air-dried farmland soil into a uniform mixed matrix in proportion; the ratio is calculated from the drying weight of the two in step ②, and the drying weight of air-dried sludge vermicompost accounts for the total weight of the mixed matrix Of 0%, 1...
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