|
| Analysis of compost material variety and physical and chemical properties based on factory enterprises |
| Received:October 09, 2021 |
| View Full Text View/Add Comment Download reader |
| KeyWord:enterprise investigation;compost materials;material variety;physical and chemical properties |
| Author Name | Affiliation | E-mail | | XU Junxiang | Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | SUN Qinping | Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | LANG Qianqian | Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | LI Yufei | Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | LIU Bensheng | Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | | | LI Jijin | Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China | lijijin65@163.com |
|
| Hits: 1013 |
| Download times: 980 |
| Abstract: |
| To improve composting efficiency in organic fertilizer enterprises, an investigation was performed in 346 organic fertilizer enterprises in China, and the physical and chemical properties of compost material samples were determined from 2017 to 2018. A total of 523 samples of composted raw materials, including animal manure, crop straw, garden waste, vegetable tail, by-product processing, and kitchen wastes, were collected. However, horse, donkey, and mule dung were not collected. Compared to the total nutrient content of animal waste 20 years ago, the content was 27.4%, 8.2%, 1.7% and 26.9% higher in cow dung, pig manure, sheep manure, and chicken manure, respectively. The N/P of animal manure was lower than that of straw. In the past 20 years, horse, donkey, and mule dung have not been the main composting materials. The total nitrogen, phosphorus, and potassium values of cow dung, pig manure, sheep manure, and chicken manure showed an increasing trend. There was a significant positive correlation between N/P and C/N of livestock and poultry manure. The appropriate N/P could be obtained by regulating C/N during composting to reduce the soil phosphorus accumulation. |
|
|
|
