Articles | Volume 13, issue 15
Research article
12 Aug 2016
Research article |  | 12 Aug 2016

Greenhouse gas emissions and reactive nitrogen releases from rice production with simultaneous incorporation of wheat straw and nitrogen fertilizer

Longlong Xia, Yongqiu Xia, Shutan Ma, Jinyang Wang, Shuwei Wang, Wei Zhou, and Xiaoyuan Yan

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Cited articles

Akiyama, H., Yan, X., and Yagi, K.: Evaluation of effectiveness of enhanced-efficiency fertilizers as mitigation options for N2O and NO emissions from agricultural soils: meta-analysis, Glob. Change Biol., 16, 1837–1846, 2010.
Banger, K., Tian, H., and Lu, C.: Do nitrogen fertilizers stimulate or inhibit methane emissions from rice fields, Glob. Change Biol., 18, 3259–3267, 2012.
Chen, X., Cui, Z., Fan, M., Vitousek, P., Zhao, M., Ma, W., Wang, Z., Zhang, W., Yan, X., and Yang, J.: Producing more grain with lower environmental costs, Nature, 514, 486–489, 2014.
Cheng, K., Yan, M., Nayak, D., Pan, G., Smith, P., Zheng, J., and Zheng, J.: Carbon footprint of crop production in China: an analysis of National Statistics data, J. Agr. Sci., 153, 422–431, 2014.
Cui, Z., Yue, S., Wang, G., Meng, Q., Wu, L., Yang, Z., Zhang, Q., Li, S., Zhang, F., and Chen, X.: Closing the yield gap could reduce projected greenhouse gas emissions: a case study of maize production in China, Glob. Change Biol., 19, 2467–2477, 2013a.
Short summary
Through a 2-year field experiment and meta-analysis, we found higher GHG (dominated by CH4 emission) and Nr (dominated by NH3 volatilization) was released from rice production in TLR, causing great environmental costs, due to direct straw incorporation and excessive N fertilization. Sensible N reduction reduced the GHG and Nr to some extent, but further mitigation is possible, especially for CH4 emission and NH3 volatilization, considering current incorporation pattern of straw and N fertilizer.
Final-revised paper