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当前位置: 首页 > 文章 > 设施蔬菜耗水时空特征及水敏感期研究 湖北农业科学 2016 (3) 595-598+611
Position: Home > Articles > Study on Spatial and Temporal Characteristics of Water Consumption and Water-sensitive Stage of Facility Vegetables Hubei Agricultural Sciences 2016 (3) 595-598+611

设施蔬菜耗水时空特征及水敏感期研究

作  者：
张余良;单晓政;牛国保;郭锐;王坤;张远芳;孙德岭;任华中;张振贤
单  位：
天津科润农业科技股份有限公司;天津市农业科学院;中国农业大学蔬菜系
关键词：
设施蔬菜;水分亏缺敏感指数;灌溉;耗水量;耗水强度;滨海地区
摘  要：
在天津武清区以田间小区试验进行了设施蔬菜土壤耗水时空特征和水分亏缺敏感性研究。分别在黄瓜苗期(定植后缓苗期)、初花期、初瓜期、盛瓜期等生育期的其中一个生育期灌溉常规水量的50%、75%,其余生育期恢复到常规灌水量,分层监测土壤含水量和黄瓜产量。结果表明,在土壤质地黏重的滨海地区设施条件下,不论是灌溉常规水量50%的处理,还是灌溉常规水量75%的处理,其田间耗水量均以黄瓜盛瓜期较大,而且以苗期减少灌水处理的田间耗水量最高;田间耗水强度以盛瓜期较高,黄瓜苗期、初花期缺水会增加盛瓜期的耗水强度;黄瓜定植后的苗期水分亏缺敏感指数最大,其次是初花期,而初瓜和盛瓜期为负值。苗期和初花期缺水对黄瓜产量影响较大,初瓜期、盛瓜期适当减少灌水定额对产量影响较小。
译  名：
Study on Spatial and Temporal Characteristics of Water Consumption and Water-sensitive Stage of Facility Vegetables
作  者：
ZHANG Yu-liang;SHAN Xiao-zheng;NIU Guo-bao;GUO Rui;WANG Kun;ZHANG Yuan-fang;SUN De-ling;REN Hua-zhong;ZHANG Zhen-xian;GAO Li-hong;Tianjin Academy of Agriculture Sciences;Tianjin Kerun Agricultural Science and Technology Co.,Ltd.;Department of Vegetable Science,China Agricultural University;
关键词：
facility vegetables;;water deficit sensitivity index;;irrigation;;water consumption;;consumption intensity;;Coastal areas
摘  要：
Field experiments were conducted in Tianjin Wuqing district to study spatial and temporal characteristics of soil water consumption and water deficit sensitivity of facility vegetables. 50% or 75% of conventional amount water in one of five growth stage of cucumber, including planting stage, initially flowering stage, initially fruiting stage, picking stage and last stage of picking, and conventional amount water in the rest growth stage were irrigated respectively, and soil moisture and yield were monitored. The results showed that the picking stage was much water consumption and water shortage in planting stage and initially flowering stage increased its intensity, moreover it was the most water consumption when the irrigation amount was reduced at planting stage, under the heavy clay soil condition in coastal area. Water deficit sensitivity index at planting stage was the greatest, followed by the initially flowering stage, while it was negative at initially fruiting stage and picking stage. Cucumber yield was greatly impacted by lacking water both in planting stage and initially flowering stage,while was less impacted by properly reducing water use in initially fruiting stage or picking stage.

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