Much improved irrigation wheat-maize double use efficiency in an intensive cropping system in the north China plain
文献类型：SCI/SSCI论文
| 作者 | Yu Q. |
| 发表日期 | 2007 |
| 关键词 | cropping system crop yield irrigation schedule North China Plain soil water balance water use efficiency water-use efficiency winter-wheat yield components grain-yield environment sorghum deficit growth |
| 英文摘要 | Crop yield and water use efficiency (WUE) in a wheat-maize double cropping system are influenced by short and uneven rainfalls in the North China Plain (NCP). A 2-year experiment was conducted to investigate the effects of irrigation on soil water balance, crop yield and WUE to improve irrigation use efficiency in the cropping system. Soil water depletion (Delta SWS) by crop generally decreased with the increase of irrigation and rainfall, while Delta SWS for the whole rotation was relatively stable among these irrigation treatments. High irrigations in wheat season increased initial soil moisture and Delta SWS for subsequent maize especially in the drought season. Initial soil water influenced mainly by the irrigation and rainfall in the previous crop season, is essential to high yield in such cropping systems. Grain yield decreased prior to evapotranspiration (ET) when ET reached about 300 mm for wheat, while maize showed various WUEs with similar seasonal ET. For whole rotation, WUE declined when ET exceeded about 650 mm. These results indicate great potential for improving irrigation use efficiency in such wheat-maize cropping system in the NCP. Based on the present results, reasonable irrigation schedules according to different annual rainfall conditions are presented for such a cropping system. |
| 出处 | Journal of Integrative Plant Biology |
| 卷 | 49 |
| 期 | 10 |
| 页 | 1517-1526 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1672-9072 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24047]  |
| 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 | Yu Q.. Much improved irrigation wheat-maize double use efficiency in an intensive cropping system in the north China plain. 2007. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。