Production of organic fertilizer
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 谢卫东
- Publication Date
- 2007-11-21
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a method for preparing fertilizer, in particular to a method for preparing organic fertilizer. Background technique
[0002] The development of rural breeding industry is a means for Chinese farmers to get rich. In rural China, modern large-scale breeding has developed rapidly, bringing benefits to farmers. But at the same time of development, it has also brought a large amount of livestock and poultry manure that is difficult to deal with. For example, a county in Shandong Province produces 7,000 tons of livestock and poultry manure every day, causing serious air and surface water pollution. In a place where pigs are concentrated in Hunan, the water source has been polluted by livestock and poultry feces, which has reached 10 meters underground, seriously affecting life. At present, the annual production of livestock and poultry manure in my country has reached 1.9 billion tons, which is more than twice the discharge of ind...