WANG Yangren,WANG Shaosheng,ZHENG Zhiwei,et al.Research of Eggplant Economical Irrigation Scheduling With Drip Irrigation Under Plastic Mulch in Greenhouse[J].Northern Horticulture,2016,40(17):46-50.[doi:10.11937/bfyy.201617011]
温室膜下滴灌茄子经济灌溉制度研究
- Title:
- Research of Eggplant Economical Irrigation Scheduling With Drip Irrigation Under Plastic Mulch in Greenhouse
- Keywords:
- greenhouse; drip irrigation under mulch; eggplant; economical irrigation schedule; irrigation low limit
- 文献标志码:
- A
- 摘要:
- 以茄子为试材，采用温室膜下滴灌方法对茄子最适宜生长的温度、水分胁迫指数和干物质转化因子等3个作物生长模型参数进行了率定，研究了温室膜下滴灌茄子的经济灌溉制度及其灌水下限值。结果表明：采用经济灌溉制度比实际灌水有显著的增产增收效益，每公顷产量和效益分别增加4.22 t和1.367万元，节约灌溉水量8.235％；茄子经济灌水下限值为0.239，占田间持水率的85.3％（以0~60 cm土层平均含水率表示），变异系数为0.245％。按照该灌水下限值灌水，可使单位面积的灌溉效益最大。
- Abstract:
- Taking eggplant as material，the temperature，water stress index and dry matter transformation factor for the eggplant growth model parameter in greenhouse were determined with drip irrigation under plastic mulch.The economic irrigation schedule and irrigation low limit were studied.The results showed that the economic irrigation schedule could be significantly increased yield and income more than practical irrigation as 4.22 t?hm-2 and 13 670 RMB?hm-2，and the irrigation water consumption was saved by 8.235% for the eggplant；the average value of soil water content （depth of 0-60 cm）before irrigation was used as the irrigation low limit for crop economical irrigation，and the value was 0.239，relative water content was 85.3％，and the coefficient of variation was 0.245％for the greenhouse eggplant.Ecominc benefit per unit area was the best by the value(0.239)of the irrigation low limit for crop economical irrigation. Keywords:greenhouse；drip irrigation under mulch；eggplant；economical irrigation schedule；irrigation low limit
参考文献/References:
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备注/Memo
第一作者简介：王仰仁（1962-），男，博士，教授，现主要从事灌溉排水技术教学与科研等工作。E-mail：wyrf@163.com.基金项目：国家科技支撑计划资助项目（2012BAD08B01）；天津市水务局科技计划资助项目（KY2012-12）。