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Inhibitory Effects of 3,4-Dimethylpyrazole Phosphate on CH4 and N2O Emissions in Paddy Fields of Subtropical China

Author

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  • Shan Yin

    (School of Agriculture and Biology and Research Centre for Low Carbon Agriculture, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
    Shanghai Urban Forest Research Station, State Forestry Administration, Shanghai 200240, China
    These authors contributed equally to this work.)

  • Xianxian Zhang

    (School of Agriculture and Biology and Research Centre for Low Carbon Agriculture, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
    Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, 1000 Jinqi Road, Shanghai 201403, China
    These authors contributed equally to this work.)

  • Zaidi Jiang

    (School of Agriculture and Biology and Research Centre for Low Carbon Agriculture, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
    Key Laboratory for Urban Agriculture, Ministry of Agriculture, 800 Dongchuan Rd., Shanghai 200240, China)

  • Penghua Zhu

    (School of Agriculture and Biology and Research Centre for Low Carbon Agriculture, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
    Shanghai Urban Forest Research Station, State Forestry Administration, Shanghai 200240, China)

  • Changsheng Li

    (School of Agriculture and Biology and Research Centre for Low Carbon Agriculture, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
    Key Laboratory for Urban Agriculture, Ministry of Agriculture, 800 Dongchuan Rd., Shanghai 200240, China
    Deceased.)

  • Chunjiang Liu

    (School of Agriculture and Biology and Research Centre for Low Carbon Agriculture, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
    Shanghai Urban Forest Research Station, State Forestry Administration, Shanghai 200240, China)

Abstract

3,4-Dimethylpyrazole phosphate (DMPP) has been widely employed to reduce nitrogen leaching and greenhouse gas emissions in the soils of dry farmlands. However, the effects of DMPP on the dynamics of nitrogen in paddy fields remain unclear. For this study, treatments with 0%, 0.25%, 0.5%, 1%, or 1.5% DMPP levels of nitrogen fertilization plus urea were designed to determine the effects on greenhouse gas emissions in paddy fields of subtropical China. All DMPP treatments significantly reduced CH4 and N2O emissions, from 54% to 34%, and 94% to 39%, respectively, compared with a urea fertilizer treatment alone. The soil NH4+ content decreased and NO3− increased more slowly with the application of DMPP. The crop yields under the various DMPP treatments showed no significant difference (p < 0.05). We concluded that the application of 0.5% and 1% DMPP may significantly reduce CH4 and N2O emissions in contrast to other treatments. This has important implications for the maintenance of rice yields, while reducing greenhouse gas emissions in paddy fields.

Suggested Citation

  • Shan Yin & Xianxian Zhang & Zaidi Jiang & Penghua Zhu & Changsheng Li & Chunjiang Liu, 2017. "Inhibitory Effects of 3,4-Dimethylpyrazole Phosphate on CH4 and N2O Emissions in Paddy Fields of Subtropical China," IJERPH, MDPI, vol. 14(10), pages 1-12, October.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:10:p:1177-:d:114132
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    Cited by:

    1. Kaikuo Wu & Ping Gong & Lili Zhang & Zhijie Wu & Xueshi Xie & Hengzhe Yang & Wentao Li & Yuchao Song & Dongpo Li, 2019. "Yield-scaled N2O and CH4 emissions as affected by combined application of stabilized nitrogen fertilizer and pig manure in rice fields," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(10), pages 497-502.

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