文献类型： 外文期刊
作者： Feng, Yanfang 1 ; He, Huayong 1 ; Xue, Lihong 1 ; Liu, Yang 4 ; Sun, Haijun 3 ; Guo, Zhi 2 ; Wang, Yueman 2 ; Zheng, Xueb 1 ;
作者机构： 1.Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212001, Jiangsu, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Agro Environm Downstream Yangze Plain, Minist Agr & Rural Affairs Peoples Republ China, Nanjing 210014, Peoples R China
3.Nanjing Forestry Univ, Coll Forestry, Nanjing 210037, Peoples R China
4.Jiangsu Acad Agr Sci, Inst Agr Informat, Nanjing 210014, Peoples R China
5.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China
6.Chinese Acad Agr Sci, Key Lab Tobacco Biol & Proc, Minist Agr & Rural Affairs, Tobacco Res Inst, Qingdao 266101, Peoples R China
关键词： Hydrochar; Pyrochar; Rice yield; Nitrogen use efficiency; Biochar-derived organic materials
期刊名称：JOURNAL OF ENVIRONMENTAL MANAGEMENT （ 影响因子：6.789； 五年影响因子：6.914 ）
ISSN： 0301-4797
年卷期： 2021 年 293 卷
页码：
收录情况： SCI
摘要： The effects of PBC and HBC on rice production, NUE and corresponding mechanisms were examined. Six treatments, P05, P30, H05, H30 (P: PBC; H: HBC; 05 and 30 represented the application rate of 0.5 and 3.0% w/ w), CKU (urea application without char) and CK (no application of char and urea), were set up. Results showed that P05, P30 and H05 increased grain yield by 1.8-7.3% (P 0.05), whereas H30 reduced grain yield by 60.4% (P < 0.05), compared to CKU. Meanwhile, HI under P05, P30 and H05 increased by 3.4-3.6%, while H30 decreased by 9.1% (P < 0.05). NUE and NAE showed similar trends with rice yield. By investigation, the excessive introduction of BDOM plays a crucial role in the reduction of rice production and NUE under higher HBC application. GC-MS/MS analysis showed that the soluble BDOM of HBC and PBC was quite different, and compounds such as 2,6-dimethoxyphenol might stress rice growth. ESI-FT-ICR-MS analysis showed that the BDOM of HBC contained a certain quantity of aromatic compounds, which may also stress rice growth. Overall, HBC pretreatment should be conducted, and the application rate should be strictly controlled before its agricultural application.
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