Case study of developing an integrated water and nitrogen scheme for agricultural systems on the North China Plain
文献类型：SCI/SSCI论文
| 作者 | Luo Y. |
| 发表日期 | 2013 |
| 关键词 | water saving nitrogen winter wheat summer maize management nitrate concentration cropping system groundwater environment irrigation strategies wheat |
| 英文摘要 | Appropriate irrigation and nitrogen fertilization, along with suitable crop management strategies, are essential prerequisites for optimum yields in agricultural systems. This research attempts to provide a scientific basis for sustainable agricultural production management for the North China Plain and other semi-arid regions. Based on a series of 72 treatments over 2003-2008, an optimized water and nitrogen scheme for winter wheat/summer maize cropping system was developed. Integrated systems incorporating 120 mm of water with 80 kg N ha(-1) N fertilizer were used to simulate winter wheat yields in Hebei and 120 mm of water with 120 kg N ha(-1) were used to simulate winter wheat yields in Shandong and Henan provinces in 2000-2007. Similarly, integrated treatments of 40 kg N ha(-1) N fertilizer were used to simulate summer maize yields in Hebei, and 80 kg N ha(-1) was used to simulate summer maize yields in Shandong and Henan provinces in 2000-2007. Under the optimized scheme, 341.74 10(7) mm ha(-1) of water and 575.79 10(4) Mg of urea fertilizer could be saved per year under the wheat/ maize rotation system. Despite slight drops in the yields of wheat and maize in some areas, water and fertilizer saving has tremendous long-term eco-environmental benefits. |
| 出处 | International Agrophysics |
| 卷 | 27 |
| 期 | 4 |
| 页 | 425-437 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0236-8722 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30382]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Luo Y.. Case study of developing an integrated water and nitrogen scheme for agricultural systems on the North China Plain. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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