Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation
文献类型：期刊论文
| 作者 | Hua, Keke1,2; Zhu, Bo1
|
| 刊名 | NUTRIENT CYCLING IN AGROECOSYSTEMS
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 112期号:1页码:133-146 |
| 关键词 | Dissolved organic nitrogen transport Hydrological routes Long-term crop straw incorporation Yield-scaled DON losses |
| ISSN号 | 1385-1314 |
| DOI | 10.1007/s10705-018-9937-3 |
| 英文摘要 | The transportation of dissolved organic nitrogen (DON) from croplands to aquatic ecosystems potentially negatively influences water quality. Sustaining crop yields while decreasing the environmental impacts of the DON from nitrogen fertilizer application is a key challenge in sustainable agriculture. However, few field datasets have measured the lateral transportation of DON via hydrological routes under different nitrogen fertilizer applications, particularly in sloping croplands. Using lysimeter plots (8 x 4 m(2)), we measured DON loss via overland flow, interflow, and soil erosion under different fertilizer applications under a long-term field experiment. There were four treatments, including no fertilizer (CK), mineral fertilizer (NPK), mineral fertilizer combined with swine manure (MNPK), and mineral fertilizer combined with crop straw (CNPK). In comparison to the NPK treatment, the annual DON loss fluxes via overland flow, interflow, and soil erosion for the MNPK treatment were significantly (P < 0.05) increased by 68.8, 100.6, and 63.7%, respectively. Conversely, this was significantly decreased by 182.6, - 14.1, and 49.4%, respectively, under the CNPK treatment. Correspondingly, the yield-scaled total DON losses for the MNPK and CNPK treatments were significantly increased by 78.8 and - 18.2% compared to the NPK treatment (0.33 +/- 0.04 kg N t(-1) grain). Therefore, long-term continuous manure application is associated with an increased risk of DON environmental pollution. Alternatively, the incorporation of crop straw can be recommended as a means of decreasing DON pollution while maintaining crop yield. |
| 语种 | 英语 |
| WOS记录号 | WOS:000441119600009 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.imde.ac.cn/handle/131551/23488]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Zhu, Bo |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 2.Anhui Acad Agr Sci, Soil & Fertilizer Res Inst, Hefei 230031, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hua, Keke,Zhu, Bo. Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation[J]. NUTRIENT CYCLING IN AGROECOSYSTEMS,2018,112(1):133-146. |
| APA | Hua, Keke,&Zhu, Bo.(2018).Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation.NUTRIENT CYCLING IN AGROECOSYSTEMS,112(1),133-146. |
| MLA | Hua, Keke,et al."Dissolved organic nitrogen fluxes and crop yield after long-term crop straw incorporation".NUTRIENT CYCLING IN AGROECOSYSTEMS 112.1(2018):133-146. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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