| AMELIORATION OF AN ACID ULTISOL BY AGRICULTURAL BY-PRODUCTS | |
| Wang, N.1,2; Xu, R. -K.1; Li, J. -Y.1,2 | |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 2011-11-01 | |
| 卷号 | 22期号:6页码:513-518 |
| 关键词 | plant material amelioration of soil acidity soil pH exchangeable base status exchangeable Al PR China |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.1025 |
| 通讯作者 | Xu, R. -K.(rkxu@issas.ac.cn) |
| 英文摘要 | Ultisols are widely distributed in the subtropical regions of China as well as in the world. High acidity of Ultisols limits plant growth and reduces crop yields. Amelioration of an acid Ultisol was investigated by incorporating the residues of canola (Brassica campestris L.), wheat (Triticum aestivum L.), rice (Oryza sativa), corn (Zea mays), soybean (Glycine max), peanut (Arachis hypogaea), faba bean (Vicia faba L.) and pea (Pisum sativum) and Chinese milk vetch (Astragalus sinicus L.) shoots after incubation of the agricultural by-products for a maximum of 75 days, soil pH was increased by each of the plant materials. The degree of amelioration of the soil acidity by the plant materials was found to depend on the ash alkalinity and N content of the materials; the legumes of higher ash alkalinities and lower N contents, such as peanut straw and faba bean straw, led to the largest increases in soil pH, while the legumes of higher N contents showed less amelioration of the acidity to a certain degree, because of the release of protons during nitrification of NH(4)(+) from mineralisation of organic N. The non-leguminous materials have medium amelioration effects and increased soil pH by 0.42-0.56 units at the end of incubation. The incorporation of the plant materials also increased exchangeable base status and reduced exchangeable Al, and thus decreased the toxicity of Al in the soil. This study demonstrates that plant materials, especially crop residues, can be used as amendments for acidic soils to restore degraded land in subtropical regions. Copyright (C) 2010 John Wiley & Sons, Ltd. |
| 收录类别 | SCI |
| WOS关键词 | SOIL-PH CHANGES ; ALUMINUM TOXICITY ; ORGANIC-MATTER ; ASH ALKALINITY ; WHEAT ; CHINA ; ACIDIFICATION ; RESIDUES ; MANURES ; GROWTH |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Environmental Sciences ; Soil Science |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL |
| WOS记录号 | WOS:000297917200002 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558950 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xu, R. -K. |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, N.,Xu, R. -K.,Li, J. -Y.. AMELIORATION OF AN ACID ULTISOL BY AGRICULTURAL BY-PRODUCTS[J]. LAND DEGRADATION & DEVELOPMENT,2011,22(6):513-518. |
| APA | Wang, N.,Xu, R. -K.,&Li, J. -Y..(2011).AMELIORATION OF AN ACID ULTISOL BY AGRICULTURAL BY-PRODUCTS.LAND DEGRADATION & DEVELOPMENT,22(6),513-518. |
| MLA | Wang, N.,et al."AMELIORATION OF AN ACID ULTISOL BY AGRICULTURAL BY-PRODUCTS".LAND DEGRADATION & DEVELOPMENT 22.6(2011):513-518. |
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