| Return rate of straw residue affects soil organic C sequestration by chemical fertilization | |
| Lou, Yilai1; Xu, Minggang1; Wang, Wei2; Sun, Xiaolin3; Zhao, Kai4 | |
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 2011-05-01 | |
| 卷号 | 113期号:1页码:70-73 |
| 关键词 | Chemical fertilizer C sequestration Residue management SOC storage |
| ISSN号 | 0167-1987 |
| DOI | 10.1016/j.still.2011.01.007 |
| 通讯作者 | Xu, Minggang(mgxu@caas.ac.cn) |
| 英文摘要 | A 12-year field experiment was used to examine effects of return rates of crop straw residue on organic C sequestration by chemical fertilization in surface (0-20 cm) soil. The tested soil was a Hapli-Ustic Cambosol (FAO taxonomy) and the used crop was maize (Zea mays L). The four main treatments were consisted of a gradient of return rate of straw residue, namely 0%, 25%, 50% and 100% of shattered straw residue (referred to as 0%S, 25%S, 50%S and 100%S, respectively). The three sub-treatments contained unfertilized control (CK), unbalanced N fertilization (N) and balanced NPK fertilization (NPK). Along the gradient of straw return rate, topsoil C storage significantly increased. The balanced NPK fertilization was more effective in sequestrating topsoil C than the unbalanced N fertilization. Responses of topsoil C storage to the straw return and fertilization significantly increased with the experimental duration. With increasing straw return rates, C-sequestration effects of the N, and NPK treatments in topsoil changed from not significant to significant or from significant to more significant in statistics. Our findings demonstrate that C-sequestration effects of chemical fertilization in topsoil strongly depend on return regime of straw residue. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | SOYBEAN-WHEAT ROTATION ; CARBON SEQUESTRATION ; CROPPING SYSTEM ; MANURE APPLICATION ; INDIAN HIMALAYAS ; LOAM SOIL ; NITROGEN ; MANAGEMENT ; TILLAGE ; MAIZE |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000289659800009 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2559034 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xu, Minggang |
| 作者单位 | 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Crop Nutr & Fertilizat, Minist Agr, Beijing 100081, Peoples R China 2.Michigan State Univ, Dept Crop & Soil Sci, E Lansing, MI 48824 USA 3.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 4.Chaoyang Ctr Agr Technol Serv, Chaoyang 122400, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lou, Yilai,Xu, Minggang,Wang, Wei,et al. Return rate of straw residue affects soil organic C sequestration by chemical fertilization[J]. SOIL & TILLAGE RESEARCH,2011,113(1):70-73. |
| APA | Lou, Yilai,Xu, Minggang,Wang, Wei,Sun, Xiaolin,&Zhao, Kai.(2011).Return rate of straw residue affects soil organic C sequestration by chemical fertilization.SOIL & TILLAGE RESEARCH,113(1),70-73. |
| MLA | Lou, Yilai,et al."Return rate of straw residue affects soil organic C sequestration by chemical fertilization".SOIL & TILLAGE RESEARCH 113.1(2011):70-73. |
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