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| 论文编号: |
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| 论文题目: |
Changes in Phosphorus Fractions and Nitrogen Forms During Composting of Pig Manure with Rice Straw |
| 英文论文题目: |
Changes in Phosphorus Fractions and Nitrogen Forms During Composting of Pig Manure with Rice Straw |
| 第一作者: |
吕兑安 |
| 英文第一作者: |
Lu, D. A. |
| 联系作者: |
王莉霞 |
| 英文联系作者: |
Wang, L. X. |
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| 发表年度: |
2013 |
| 卷: |
12 |
| 期: |
10 |
| 页码: |
1855-1864 |
| 摘要: |
The study was conducted to reveal P fractions and N forms changing characters during composting of pig manure with rice straw. During composting, the NH4+-N concentration decreased and reached at a relatively low value (<400 mg kg(-1)) in the final compost, while the NO3--N concentration increased. Total N losses mainly occurred during thermophilic phase due to the high temperature, the high NH4+-N concentration and the increase of pH value. Labile inorganic P was dominated in the pig manure and initial compost mixture. During composting, the proportion of labile inorganic P of total extracted P decreased, while the proportion of Fe+Al-bound P, Ca+Mg-bound P and residual P increased. The evolutions of the proportion of labile inorganic P, Fe+Al-bound P and Ca+Mg-bound P were well correlated with the changes of pH value, organic matter and C/N ratio. Therefore, composting could increase the concentration of N and P and decrease the presence of NH4+-N and labile P fractions which might cause environmental issues following land application. |
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| 刊物名称: |
Journal of Integrative Agriculture |
| 英文刊物名称: |
Journal of Integrative Agriculture |
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| 英文参与作者: |
Yan, B. X.; Wang, L. X.; Deng, Z. Q.; Zhang, Y. B. |
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