| 滴灌条件下不同根区交替湿润对葡萄生长和水分利用的影响 |
| |
| 引用本文： | 杜太生,康绍忠,夏桂敏,杨秀英.滴灌条件下不同根区交替湿润对葡萄生长和水分利用的影响[J].农业工程学报,2005,21(11):43-48. |
| |
| 作者姓名： | 杜太生 康绍忠 夏桂敏 杨秀英 |
| |
| 作者单位： | 中国农业大学中国农业水问题研究中心,北京,100083;中国农业大学中国农业水问题研究中心,北京,100083;西北农林科技大学旱区农业水土工程教育部重点实验室,杨凌,712100;甘肃省武威市水利科学研究所,武威,733000 |
| |
| 基金项目： | 国家自然科学基金重点项目(50339030)；国家自然科学基金面上项目(50279043)；国家“十五”节水农业重大科技专项(2002AA2Z-4041) |
| |
| 摘 要： | 在干旱缺水的甘肃河西荒漠绿洲区研究了滴灌条件下不同根区湿润方式对葡萄生长和水分利用的影响，结果表明，对传统的滴灌方式适当改进可以实现根系分区交替灌溉；当灌水量减半时，尽管葡萄的生长状况受到了抑制，但交替滴灌处理葡萄生长状况优于固定一侧滴灌，控制供水条件下葡萄叶片气孔导度下降，光合作用降低不明显，而蒸腾速率大大降低，水分利用效率明显提高，在控制局部根区交替供水条件下，葡萄累积茎液流量比常规双侧滴灌处理下降了25%。表明在葡萄上应用根系分区交替滴灌可以达到调控营养生长与生殖生长，减少生长冗余，大量节水而提高水分利用效率的目的。
|
| 关 键 词： | 部分根区交替灌溉 葡萄 茎液流 水分利用效率 |
| 文章编号： | 1002-6819(2005)11-0043-06 |
| 收稿时间： | 4/1/2005 12:00:00 AM |
| 修稿时间： | 2005-05-30 |
Response of grapevine growth and water use to different partial root-zone drying patterns under drip irrigation |
| |
| Du Taisheng,Kang Shaozhong,Xia Guimin and Yang Xiuying.Response of grapevine growth and water use to different partial root-zone drying patterns under drip irrigation[J].Transactions of the Chinese Society of Agricultural Engineering,2005,21(11):43-48. |
| |
| Authors: | Du Taisheng Kang Shaozhong Xia Guimin and Yang Xiuying |
| |
| Institution: | 1. Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, China; 2. Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semi-arid Areas of Ministry of Education, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China; 3. Wuwei Institute of Water Conservancy, Wuwei 733000, China |
| |
| Abstract: | Effects of different partial root-zone drying patterns on growth, sap flow and water use efficiency of grapevine were tested with three drip irrigation patterns i.e., alternate partial root-zone drip irrigation(ADI), fixed partial root-zone drip irrigation(FDI) and conventional whole root-zone drip irrigation(CDI) in oasis of Hexi Corridor, Gansu Province. The results show that the growth of grape is restricted by limited water of ADI and FDI compared with CDI, while the growth of ADI is better than FDI at the same irrigation level. Water use efficiency of ADI was the highest among the three patterns, partially because the photosynthesis rate decreased less while transpiration rate reduced more with the closing of stomata. Sap flow of ADI and CDI was cut down by 25 percent by different irrigation patterns. The experiment show that ADI can regulate the ratio of vegetative and nutrient growth, with reducing the redundance and saving much water. |
| |
| Keywords: | partial root-zone irrigation grape sap flow water use efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《农业工程学报》浏览原始摘要信息 |
| 点击此处可从《农业工程学报》下载免费的PDF全文 |
