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Comparison of soil phosphorus and phosphatase activity under long-term no-tillage and maize residue management

Author

Listed:
  • Xiaozhu Yang

    (Key Laboratory of Forest and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China)

  • Xuelian Bao

    (Key Laboratory of Forest and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China)

  • Yali Yang

    (Key Laboratory of Forest and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China
    University of Chinese Academy of Sciences, Beijing, P.R. China)

  • Yue Zhao

    (Key Laboratory of Forest and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China
    University of Chinese Academy of Sciences, Beijing, P.R. China)

  • Chao Liang

    (Key Laboratory of Forest and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China)

  • Hongtu Xie

    (Key Laboratory of Forest and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, P.R. China)

Abstract

The migration and transformation of soil phosphorus (P) are essential for agricultural productivity and environmental security but have not been thoroughly elucidated to date. A 10-year field study was conducted to explore the effects of conventional tillage (CT) and no-tillage with maize residue management (NT-0, NT-33%, NT-67% and NT-100%) on P contents and phosphatase activities in soil layers (0-5, 5-10, 10-20 and 20-40 cm). The results showed that soil available P content and phosphatase activities were higher in no-tillage with maize residue than CT. Soil moisture and pH were significantly positively correlated with soil available P. Higher organic P contents and lower inorganic P contents in the 0-5 cm soil layer were found in the treatment NT-67% compared with other treatments. According to the structure equation model, the source of available P was inorganic P in NT-33%, while organic P in NT-67%. This study demonstrated that the variation of dominant mechanisms involved in soil P migration and transformation were dependent on residue input amounts, and NT-67% might play an important role in the maintenance and transformation of soil organic P.

Suggested Citation

  • Xiaozhu Yang & Xuelian Bao & Yali Yang & Yue Zhao & Chao Liang & Hongtu Xie, 2019. "Comparison of soil phosphorus and phosphatase activity under long-term no-tillage and maize residue management," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(8), pages 408-415.
    • Handle: RePEc:caa:jnlpse:v:65:y:2019:i:8:id:307-2019-pse
    DOI: 10.17221/307/2019-PSE
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    References listed on IDEAS

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    1. J.B. Wang & Z.H. Chen & L.J. Chen & A.N. Zhu & Z.J. Wu, 2011. "Surface soil phosphorus and phosphatase activities affected by tillage and crop residue input amounts," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 57(6), pages 251-257.
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