Preparation method of organic fertilizer rich in chitin
A chitin and organic fertilizer technology is applied in the field of preparation of chitin-rich organic fertilizers, can solve problems such as high cost and environmental pollution, and achieve the effects of increasing the yield of vermicompost, improving the agricultural ecological environment, and being beneficial to growth.
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[0047] Example one
[0048] The preparation method of a chitin-rich organic fertilizer of this embodiment is carried out in the following steps:
[0049] 1. Dry insect shells and shrimp and crab shells and crush them into powder of 20-40 mesh;
[0050] 2. Mix 225 kg of cow dung, 75 kg of powder prepared in step 1 and 1 kg of BFA, adjust C / N to 20, moisture content to 80%, and stack and ferment at 70°C for 15 days;
[0051] 3. Feed the earthworms with the fermented base material in step 2, and add water to keep the moisture content of the base material at 60% and the temperature at 20℃;
[0052] 4. Collect the earthworm feces mixture in the upper layer of the base material once a week and dry it;
[0053] 5. The dried earthworm feces mixture prepared in step 4 is first passed through a sieve with an aperture of 9.25mm, and the surface of the sieve is the base material that has not been completely fermented or has not been eaten by earthworms; then passes through a sieve with an aperture o...
Example Embodiment
[0055] Example two
[0056] The preparation method of a chitin-rich organic fertilizer of this embodiment is carried out in the following steps:
[0057] 1. Dry insect shells and shrimp and crab shells and crush them into powder of 20-40 mesh;
[0058] 2. Mix 325kg of cow dung, 70kg of powder prepared in step 1 and 1kg of BFA, adjust C / N to 30, moisture content to 60%, and stack and ferment at 45°C for 25 days;
[0059] 3. Feed the earthworms with the fermented base material in step 2, and add water to keep the moisture content of the base material at 50% and the temperature at 25℃;
[0060] 4. Collect the earthworm feces mixture in the upper layer of the base material once a week and dry it;
[0061] 5. The dried earthworm feces mixture prepared in step 4 is first passed through a sieve with an aperture of 9.25mm, and the surface of the sieve is the base material that has not been completely fermented or has not been eaten by earthworms; then passes through a sieve with an aperture of 6...
Example Embodiment
[0063] Example three
[0064] The preparation method of a chitin-rich organic fertilizer of this embodiment is carried out in the following steps:
[0065] 1. Dry insect shells and shrimp and crab shells and crush them into powder of 20-40 mesh;
[0066] 2. Mix 375kg of cow dung, 80kg of powder prepared in step 1 and 1kg of BFA, adjust C / N to 25, moisture content to 70%, and stack and ferment at 30°C for 30 days;
[0067] 3. Feed the earthworms with the fermented base material in step 2, and add water to keep the moisture content of the base material at 55% and the temperature at 22℃;
[0068] 4. Collect the earthworm feces mixture in the upper layer of the base material once a week and dry it;
[0069] 5. The dried earthworm feces mixture prepared in step 4 is first passed through a sieve with an aperture of 9.25mm, and the surface of the sieve is the base material that has not been completely fermented or has not been eaten by earthworms; then passes through a sieve with an aperture of...
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