Journal of Integrative Agriculture ›› 2013, Vol. 12 ›› Issue (10): 1855-1864.DOI: 10.1016/S2095-3119(13)60400-1

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Changes in Phosphorus Fractions and Nitrogen Forms During Composting of Pig Manure with Rice Straw

 LÜ Dui-an, href="https://www.chinaagrisci.com/Jwk_zgnykxen/CN/article/advancedSearchResult.do?searchSQL=(((YAN Bai-xing[Author]) AND 1[Journal]) AND year[Order])" target="_blank">YAN Bai-xing, href="https://www.chinaagrisci.com/Jwk_zgnykxen/CN/article/advancedSearchResult.do?searchSQL=(((WANG Li-xia[Author]) AND 1[Journal]) AND year[Order])" target="_blank">WANG Li-xia, href="https://www.chinaagrisci.com/Jwk_zgnykxen/CN/article/advancedSearchResult.do?searchSQL=(((DENG Zhi-qiang[Author]) AND 1[Journal]) AND year[Order])" target="_blank">DENG Zhi-qiang, ZHANG Yu-bin   

  1. 1 Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences,
    Changchun 130102, P.R.China
    2 University of Chinese Academy of Sciences, Beijing 100049, P.R.China
    3 College of Plant Science, Jilin University, Changchun 130062, P.R.China
  • 收稿日期:2012-10-25 出版日期:2013-10-01 发布日期:2013-10-01
  • 通讯作者: Correspondence WANG Li-xia, Tel: +86-431-85542215, E-mail: lxwang@neigae.ac.cn
  • 作者简介:Lü Dui-an, Tel: +86-431-85542215, E-mail: lvduian_1147@163.com
  • 基金资助:

    This work was financially supported by the Major Science and Technology Program for Water Pollution Control and Treatment (2012ZX07201004) and Jilin Provincial Research Foundation for Basic Research, China (201105033).

Changes in Phosphorus Fractions and Nitrogen Forms During Composting of Pig Manure with Rice Straw

 LÜ Dui-an, YAN Bai-xing, WANG Li-xia, DENG Zhi-qiang, ZHANG Yu-bin   

  1. 1 Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences,
    Changchun 130102, P.R.China
    2 University of Chinese Academy of Sciences, Beijing 100049, P.R.China
    3 College of Plant Science, Jilin University, Changchun 130062, P.R.China
  • Received:2012-10-25 Online:2013-10-01 Published:2013-10-01
  • Contact: Correspondence WANG Li-xia, Tel: +86-431-85542215, E-mail: lxwang@neigae.ac.cn
  • About author:Lü Dui-an, Tel: +86-431-85542215, E-mail: lvduian_1147@163.com
  • Supported by:

    This work was financially supported by the Major Science and Technology Program for Water Pollution Control and Treatment (2012ZX07201004) and Jilin Provincial Research Foundation for Basic Research, China (201105033).

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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.

关键词: composting , nitrogen forms , phosphorus fractions , organic matter , pig manure

Abstract: 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.

Key words: composting , nitrogen forms , phosphorus fractions , organic matter , pig manure