| 过磷酸钙在猪粪堆肥过程中的保氮效果研究 |
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| 引用本文： | 翁俊基.过磷酸钙在猪粪堆肥过程中的保氮效果研究[J].安徽农业科学,2012,40(8):4528-4529,4617. |
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| 作者姓名： | 翁俊基 |
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| 作者单位： | 三明市农产品质量安全检验检测中心,福建三明,365000 |
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| 基金项目： | 福建省农业丰收计划项目 |
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| 摘 要： | 目的]为减少堆肥过程的氮挥发损失.方法]采用强制通风静态堆肥反应器,研究过磷酸钙不同添加量对猪粪、米糠堆肥的保氮效果.结果]添加过磷酸钙可促进堆温的提高,明显降低堆肥初期与高温期的pH,明显提高堆肥的水溶性NH4+-N含量,有效减少NH3的释放量,推迟NH3产生量的高峰期.与对照(CK)相比,添加1％、2％和3％过磷酸钙可分别降低堆肥氮损失率33.56％、49.18％和52.88％,提高堆肥的磷含量.结论]猪粪、米糠堆肥的过磷酸钙适宜添加量为2％ ～3％.
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| 关 键 词： | 过磷酸钙 猪粪堆肥 保氮 |
Nitrogen Conservation of Calcium Superphosphate in Swine Manure Compost |
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| WENG Jun-ji.Nitrogen Conservation of Calcium Superphosphate in Swine Manure Compost[J].Journal of Anhui Agricultural Sciences,2012,40(8):4528-4529,4617. |
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| Authors: | WENG Jun-ji |
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| Institution: | WENG Jun-ji(Agricultural Products′ Quality and Safety Inspection Center,Sanming,Fujian 365000) |
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| Abstract: | Objective] The research was conducted to reduce the nitrogen loss of co-composting of swine manure and rice bran.Method] Static forced-aeration composting reactors were used to study the effects of calcium superphosphate on reducing nitrogen loss of co-composting of swine manure and rice bran.Result]Calcium superphosphate could increase compost temperature,reduce pH obviously,increase the contents of soluble NH4+-N,reduce the amounts of NH3 emission and postpone the maximum period of NH3 emission.Compared to the control,1%,2% and 3% of calcium superphosphate could reduce nitrogen loss by 33.56%,49.18% and 52.88% respectively.Calcium superphosphate addition could also increase phosphorus contents of compost.Conclusion] The optimized ratio of calcium superphosphate usage for composting was 2%-3%. |
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| Keywords: | Calcium superphosphate Swine manure compost Nitrogen conservation |
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