Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.chemosphere.2015.04.088 |
Biochar helps enhance maize productivity and reduce greenhouse gas emissions under balanced fertilization in a rainfed low fertility inceptisol | |
Zhang, Dengxiao1,2; Pan, Genxing1,2; Wu, Gang1,2; Kibue, Grace Wanjiru1,2; Li, Lianqing1,2; Zhang, Xuhui1,2; Zheng, Jinwei1,2; Zheng, Jufeng1,2; Cheng, Kun1,2; Joseph, Stephen1,2,3; Liu, Xiaoyu1,2 | |
通讯作者 | Liu, Xiaoyu |
来源期刊 | CHEMOSPHERE |
ISSN | 0045-6535 |
EISSN | 1879-1298 |
出版年 | 2016 |
卷号 | 142页码:106-113 |
英文摘要 | Maize production plays an important role in global food security, especially in arid and poor-soil regions. Its production is also increasing in China in terms of both planting area and yield. However, maize productivity in rainfed croplands is constrained by low soil fertility and moisture insufficiency. To increase the maize yield, local farmers use NPK fertilizer. However, the fertilization regime (CF) they practice is unbalanced with too much nitrogen in proportion to both phosphorus and potassium, which has led to low fertilizer use efficiency and excessive greenhouse gases emissions. A two-year field experiment was conducted to assess whether a high yielding but low greenhouse gases emission system could be developed by the combination of balanced fertilization (BF) and biochar amendment in a rainfed farmland located in the Northern region of China. Biochar was applied at rates of 0, 20, and 40 t/ha. Results show that BF and biochar increased maize yield and partial nutrient productivity and decreased nitrous oxide (N2O) emission. Under BF the maize yield was 23.7% greater than under CF. N2O emissions under BF were less than half that under CF due to a reduced N fertilizer application rate. Biochar amendment decreased N2O by more than 31% under CF, while it had no effect on N2O emissions under BF. Thus BF was effective at maintaining a high maize yield and reducing greenhouse gases emissions. If combined with biochar amendment, BF would be a good way of sustaining low carbon agriculture in rainfed areas. (C) 2015 Elsevier Ltd. All rights reserved. |
英文关键词 | Biochar Balanced fertilization Rainfed agriculture Greenhouse gases Crop yield |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000365368400016 |
WOS关键词 | NITROUS-OXIDE EMISSIONS ; CARBON SEQUESTRATION ; CROP PRODUCTIVITY ; USE EFFICIENCY ; N2O EMISSIONS ; RICE PADDIES ; SOIL ; CHINA ; YIELD ; WATER |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/192038 |
作者单位 | 1.Nanjing Agr Univ, Inst Resource Ecosyst & Environm Agr, Nanjing 210095, Jiangsu, Peoples R China; 2.Nanjing Agr Univ, Ctr Agr & Climate Change, Nanjing 210095, Jiangsu, Peoples R China; 3.Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia |
推荐引用方式 GB/T 7714 | Zhang, Dengxiao,Pan, Genxing,Wu, Gang,et al. Biochar helps enhance maize productivity and reduce greenhouse gas emissions under balanced fertilization in a rainfed low fertility inceptisol[J],2016,142:106-113. |
APA | Zhang, Dengxiao.,Pan, Genxing.,Wu, Gang.,Kibue, Grace Wanjiru.,Li, Lianqing.,...&Liu, Xiaoyu.(2016).Biochar helps enhance maize productivity and reduce greenhouse gas emissions under balanced fertilization in a rainfed low fertility inceptisol.CHEMOSPHERE,142,106-113. |
MLA | Zhang, Dengxiao,et al."Biochar helps enhance maize productivity and reduce greenhouse gas emissions under balanced fertilization in a rainfed low fertility inceptisol".CHEMOSPHERE 142(2016):106-113. |
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