Effect of soil matric potential on tomato yield and water use under drip irrigation condition
文献类型：SCI/SSCI论文
| 作者 | Wang D. |
| 发表日期 | 2007 |
| 关键词 | drip irrigation soil matric potential tomato water use yield |
| 英文摘要 | Field experiment was carried out to investigate the effect of soil matric potential (SMP) on tomato yield, evapotranspiration (ET), water use efficiency (WUE) and irrigation water use efficiency (IWUE) under drip irrigation condition in North China Plain. The experiment included five treatments, which controlled SMP at 0.2 m depth immediately under drip emitter higher than -10 (S1), -20 (S2), -30 (S3), -40 (S4) and -50 kPa (S5), respectively, after tomato plant establishmenf. The results showed that different SMP affected irrigation amount and tomato ET. Irrigation amount decreased from 185 mm (S1) to 83.6 mm (S5) and from 165 mm (SI) to 109 mm (S5) in 2005, respectively. The ET decreased from in 2004, 270 mm. (S1) to 202 mm (S5) in both years. However, it was found that SMP did not affect the tomato yield significantly, for the range of SMP investigated. Both WUE and IWUE increased as SMP decreased. The maximum WUE (253 and 217 kg/ha mm) and IWUE (620 and 406 kg/ha mm) were for S5 in 2 years, whereas the minimum WUE (178 and 155 kg/ha mm) and IWUE 261 and 259 kg/ha mm) were for S1 in 2004 and 2005. Based on the above results, therefore, it is recommended that if the tomatoes are well irrigated (SMP is higher than -20 kPa) during establishment, controlling SMP higher than -50 kPa at 0.2 m. depth immediately under drip emitter can be used as an indicator for drip irrigation scheduling during following period of tomato growth in North China Plain. (c) 2006 Elsevier B.V. All rights reserved. |
| 出处 | Agricultural Water Management |
| 卷 | 87 |
| 期 | 2 |
| 页 | 180-186 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0378-3774 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22956]  |
| 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 | Wang D.. Effect of soil matric potential on tomato yield and water use under drip irrigation condition. 2007. |
入库方式： OAI收割
来源：地理科学与资源研究所
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