| 王志平,周继华,黄兴法,赵懿.交替沟灌在露地春甘蓝上的应用[J].干旱地区农业研究,2010,28(4):40~45 |
| 交替沟灌在露地春甘蓝上的应用 |
| The application of alternate furrow irrigation on open field spring cabbage |
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| DOI：10.7606/j.issn.1000-7601.2010.04.08 |
| 中文关键词: 交替沟灌 露地春甘蓝 光合生理 水分利用效率 |
| 英文关键词:cabbage on open field alternate furrow irrigation psychology water use efficiency, imigation pipe |
| 基金项目:北京市科委资助项目；蔬菜节水关键技术示范推广(Z07090500550725) |
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| 中文摘要: |
| 以生产上的大畦灌和常规沟灌为对照,研究了不同时期交替沟灌对土壤水分变化、甘蓝生长、生理、产量和水分利用的影响。结果表明:与常规沟灌相比,甘蓝缓苗后交替沟灌节水17%,产量差异不显著,水分利用效率增加3.5 kg/m3;莲座期后交替沟灌节水8%,而产量增加8.1%,水分利用效率增加3.4 kg/m3。与大畦灌相比,莲座后交替沟灌节水23%,全生育期平均光合速率增加48%,蒸腾速率减少19%,根长密度和根总表面积分别增加29%和38%,产量增加24%,水分利用效率增加8.4 kg/m3。常规沟灌与大畦灌相比节水16%,产量增加15%,水分利用效率增加5.0 kg/m3。建议甘蓝种植采用莲座后交替沟灌较好。 |
| 英文摘要: |
| The effects of altemate furrow irigation on open field spring cabbage were studied on soil moisture, plant
growth, psychology and water use efficiency, with furrow irigation and full imigation control. The results showed: compar-ing to furrow irrigation , altemnate furrow irmigation after revival saved water by 17 % , while water use efficiency increased 3.5 kg/m3; altermate furrow imigation after lotus seat saved water by 8%，while water use efficiency increased 3.4 kg/m3; comparing to full irrigation, furrow imigation saved water by 17 %，while water use efficiency increased 5.0 kg/m3. Comparing to full irrigation, altermate furrow irrigation after lotus seat could increase photosynthetic rate, root length density and total root surface area , reduce transpiration rate , increase econonmic yield by 24 % , increase water use efficiency by 8.4 kg/m3, while save water by 23 %. What's more, combined with suitable irrigaiton pipe and fertigation equipement, alternate furrow imigation is a useful and economical way for water saving. |
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