Responses of weed community, soil nutrients, and microbes to different weed management practices in a fallow field in Northern China
文献类型：期刊论文
| 作者 | Gu, Xian2; Cen, Yu2; Guo, Liyue; Li, Caihong; Yuan, Han2; Xu, Ziwen2; Jiang, Gaoming2
|
| 刊名 | PEERJ
 |
| 出版日期 | 2019 |
| 卷号 | 7 |
| 关键词 | Fallow field Weed seed bank Soil microorganisms Glyphosate Organic farming |
| ISSN号 | 2167-8359 |
| DOI | 10.7717/peerj.7650 |
| 文献子类 | Article |
| 英文摘要 | The long-term use of herbicides to remove weeds in fallow croplands can impair soil biodiversity, affect the quality of agricultural products, and threaten human health. Consequently, the identification of methods that can effectively limit the weed seed bank and maintain fallow soil fertility without causing soil pollution for the next planting is a critical task. In this study, four weeding treatments were established based on different degrees of disturbance to the topsoil: natural fallow (N), physical clearance (C), deep tillage (D), and sprayed herbicide (H). The changes in the soil weed seed banks, soil nutrients, and soil microbial biomass were carefully investigated. During the fallow period, the C treatment decreased the annual and biennial weed seed bank by 34% against pretreatment, whereas the H treatment did not effectively reduce the weed seed bank. The D treatment had positive effects on the soil fertility, increasing the available nitrogen 108% over that found in the N soil. In addition, a pre-winter deep tillage interfered with the rhizome propagation of perennial weeds. The total biomass of soil bacterial, fungal, and actinomycete in H treatment was the lowest among the four treatments. The biomass of arbuscular mycorrhizal fungi in the N treatment was respectively 42%, 35%, and 91%, higher than that in the C, D, and H treatments. An ecological weeding strategy was proposed based on our findings, which called for exhausting seed banks, blocking seed transmission, and taking advantage of natural opportunities to prevent weed growth for fallow lands. This study could provide a theoretical basis for weed management in fallow fields and organic farming systems. |
| 学科主题 | Multidisciplinary Sciences |
| 出版地 | LONDON |
| WOS关键词 | AGRICULTURAL MANAGEMENT ; TILLAGE ; IMPACT ; GLYPHOSATE ; NITROGEN ; BIOMASS ; CONSERVATION ; PHOSPHORUS ; HERBICIDES ; DIVERSITY |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000484657600010 |
| 出版者 | PEERJ INC |
| 资助机构 | National Key Research and Development Project of China [2017YFC1700701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670413] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/19764]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Xian,Cen, Yu,Guo, Liyue,et al. Responses of weed community, soil nutrients, and microbes to different weed management practices in a fallow field in Northern China[J]. PEERJ,2019,7. |
| APA | Gu, Xian.,Cen, Yu.,Guo, Liyue.,Li, Caihong.,Yuan, Han.,...&Jiang, Gaoming.(2019).Responses of weed community, soil nutrients, and microbes to different weed management practices in a fallow field in Northern China.PEERJ,7. |
| MLA | Gu, Xian,et al."Responses of weed community, soil nutrients, and microbes to different weed management practices in a fallow field in Northern China".PEERJ 7(2019). |
入库方式： OAI收割
来源：植物研究所
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