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The Effect of Biochar and Straw Return on N2O Emissions and Crop Yield: A Three-Year Field Experiment

文献类型：期刊论文

作者Gao, Shangjie1; Peng, Qin3; Liu, Xingren1; Xu, Chunying2
刊名AGRICULTURE-BASEL
出版日期2023-11-01
卷号13期号:11页码:17
关键词biochar straw return nitrous oxide nitrate ammonium
DOI10.3390/agriculture13112091
通讯作者Liu, Xingren(liuxingren@caas.cn) ; Xu, Chunying(xuchunying@caas.cn)
英文摘要To evaluate the effects of application of biochar and straw return for consecutive years on N2O emissions and crop yields in North China, a three-year field experiment of applying biochar and straw following a ten-year application was conducted in a wheat-maize rotation system. Four treatments were set up, including F (NPK fertilizer only); FB (NPK fertilizer + 9.0 tha(-1) biochar); FS (NPK fertilizer + straw); and FSB ((NPK fertilizer + 9.0 tha(-1) biochar combined with straw). The results showed that compared with the F treatment, the FB treatment significantly reduced soil N2O emissions by 20.2%, while the FS and FSB treatments increased it by 23.7% and 41.4%, respectively. The FB treatment reduced soil N2O emissions by 15.1% in the wheat season and 23.2% in the maize season, respectively. The FS and FSB treatments increased the N2O emissions by 20.7% and 36.7% in the wheat season, respectively, and by 25.5% and 44.2% in the maize season, respectively. In the wheat season, the soil water content (SWC), NO3--N content and pH were the main influencing factors of the soil N2O emissions. In the maize season, SWC and NO3--N content were the main influencing factors. In addition, the FB, FS and FSB treatments increased the crop yield by 4.99%, 8.40% and 10.25% compared with the F treatment, respectively. In conclusion, consecutive application of biochar can significantly reduce N2O emissions and improve crop yield. Although FS and FSB treatments can also improve the crop yield, they are not beneficial to suppressing N2O emissions. Therefore, the successive application of biochar is an effective measure to reduce N2O emissions and maintain crop yield.
WOS关键词GREENHOUSE-GAS EMISSIONS ; NITROUS-OXIDE EMISSIONS ; WINTER-WHEAT ; SOIL ; CHINA ; METHANE ; FERTILIZER ; RETENTION ; QUALITY ; SYSTEM
资助项目National Natural Science Foundation of China
WOS研究方向Agriculture
语种英语
出版者MDPI
WOS记录号WOS:001123249100001
资助机构National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/201185]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Xingren; Xu, Chunying
作者单位1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Agr Clean Watershed Res Grp, Beijing 100081, Peoples R China
2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Environm Stable Isotope Lab, Beijing 100081, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Shangjie,Peng, Qin,Liu, Xingren,et al. The Effect of Biochar and Straw Return on N2O Emissions and Crop Yield: A Three-Year Field Experiment[J]. AGRICULTURE-BASEL,2023,13(11):17.
APA Gao, Shangjie,Peng, Qin,Liu, Xingren,&Xu, Chunying.(2023).The Effect of Biochar and Straw Return on N2O Emissions and Crop Yield: A Three-Year Field Experiment.AGRICULTURE-BASEL,13(11),17.
MLA Gao, Shangjie,et al."The Effect of Biochar and Straw Return on N2O Emissions and Crop Yield: A Three-Year Field Experiment".AGRICULTURE-BASEL 13.11(2023):17.

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来源：地理科学与资源研究所

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