Organic amendments with reduced chemical fertilizer promote soil microbial development and nutrient availability in a subtropical paddy field: The influence of quantity, type and application time of organic amendments
文献类型：期刊论文
| 作者 | Liu, Manqiang1; Hu, Feng1; Chen, Xiaoyun1; Huang, Qianru2; Jiao, Jiaguo1; Zhang, Bin3; Li, Huixin1 |
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2009-06-01 |
| 卷号 | 42期号:2页码:166-175 |
| 关键词 | Rice paddy Microbial indicator Farmyard manure Green manure Rice straw Temporal dynamic |
| ISSN号 | 0929-1393 |
| DOI | 10.1016/j.apsoil.2009.03.006 |
| 通讯作者 | Liu, Manqiang(liumq@njau.edu.cn) |
| 英文摘要 | Understanding the effects of alternative farming on soil quality parameters, such as microbial communities, size, activity and soil nutrient content, is of central importance to concepts of sustainability. Combining organic amendments with chemical fertilizer is a promising approach to develop more sustainable fertilization strategies. We investigated the impacts of quantity, type and application time of organic amendments on temporal dynamics of paddy soil microbial biomass, activity, carbon fractions and nutrient status under a long-term field experiment in a rice-rice cropping system. We established treatments with seven fertilization practices characterized by different quantities and application times of green manure (GM), farmyard manure (FYM) and rice straw (RS) in combination with low amount of chemical fertilizers. We further established one treatment with only recommended amount of chemical fertilizer and an unfertilized control. At all sampling times, organic amendments with low amount of chemical fertilizer enhanced microbial biomass, activity and nutrient availability more than recommended amount of chemical fertilization only and an unfertilized control, with higher quantities of FYM resulting in stronger effects than all other organic amendments. The strongest increase of microbial biomass, activity, carbon and nutrient availability was generally found in the treatment with the most diverse resources and highest amount of organic amendments. Principle component analysis indicated that most soil variables measured were correlated to total soil organic C. Regression analysis indicated that the integrated paddy soil properties were closely related to yearly C input and rice yield. Strong temporal dynamics were demonstrated for all soil variables, indicating that we need multiple time sampling strategies to explore the overall influences of fertilization practices on paddy soil. Our results indicate that the development of effective fertilization practices, especially by manipulating the quantity and type of organic amendments, may improve long-term sustainability of paddy soil ecosystems. (C) 2009 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | LONG-TERM APPLICATION ; LEGUMINOUS COVER CROPS ; ENZYME-ACTIVITIES ; AGRICULTURAL INTENSIFICATION ; NITROGEN AVAILABILITY ; BIOLOGICAL-PROPERTIES ; COMMUNITY COMPOSITION ; CARBON SEQUESTRATION ; BIOMASS MEASUREMENTS ; COCONUT PLANTATION |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000266738700012 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558782 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Liu, Manqiang |
| 作者单位 | 1.Nanjing Agr Univ, Soil Ecol Lab, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China 2.Res Inst Red Soil Jiangxi Prov, Jinxian 331717, Peoples R China 3.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Manqiang,Hu, Feng,Chen, Xiaoyun,et al. Organic amendments with reduced chemical fertilizer promote soil microbial development and nutrient availability in a subtropical paddy field: The influence of quantity, type and application time of organic amendments[J]. APPLIED SOIL ECOLOGY,2009,42(2):166-175. |
| APA | Liu, Manqiang.,Hu, Feng.,Chen, Xiaoyun.,Huang, Qianru.,Jiao, Jiaguo.,...&Li, Huixin.(2009).Organic amendments with reduced chemical fertilizer promote soil microbial development and nutrient availability in a subtropical paddy field: The influence of quantity, type and application time of organic amendments.APPLIED SOIL ECOLOGY,42(2),166-175. |
| MLA | Liu, Manqiang,et al."Organic amendments with reduced chemical fertilizer promote soil microbial development and nutrient availability in a subtropical paddy field: The influence of quantity, type and application time of organic amendments".APPLIED SOIL ECOLOGY 42.2(2009):166-175. |
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来源：南京土壤研究所
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