干湿交替条件下温室西瓜耗水量与产量的关系  

The Relationship between Water Consumption and the Yield of Watermelon in Greenhouses under Drying-wetting Conditions

作　　者：殷韶梅[1,2] 胡笑涛[1] 

机构地区：[1]西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌712100 [2]宁夏农垦农林牧技术推广服务中心,银川750024

出　　处：《中国农村水利水电》2016年第5期61-64,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金重点项目(50939005);水利部公益性行业专项(201001061)

摘　　要：试验以甘肃武威市凉州区当地农民温室西瓜灌溉定额作为对照,设计干湿交替灌溉灌水模式,设定对照(CK)为奇数次灌水定额与偶数次灌水定额相同,其余处理均为奇数次灌水定额小于偶数次灌水定额,奇数次灌水定额设4个水平(CK,3/4CK,2/3CK,1/2CK),偶数次灌水定额设3个水平(CK,3/4CK,2/3CK),通过建立耗水量与产量之间的函数关系和作物需水系数与耗水量之间的函数关系,确定耗水量的适宜区间为[90mm,104.48mm]时,温室西瓜可以实现节约用水,提高产量。即试验中T3(奇数次灌水定额为对照灌水定额的2/3倍,偶数次灌水定额为对照灌水定额的3/4)、T5(奇数次灌水定额为对照灌水定额的1/2倍,偶数次灌水定额为对照灌水定额的3/4)、T4(奇数次灌水定额为对照灌水定额的1/2倍,偶数次灌水定额为对照灌水定额)为较好的3个试验处理。The experiment takes the irrigation quota of watermelon in greenhouse of local farmers in Liangzhou area,Wuwei City By using Gansu Province as an example,we design the drying-wetting irrigation mode,set CK the odd number irrigation quota the same as the even number irrigation quota,the other treatments,the odd number irrigation quota are less than the even times.An odd number of times irrigation quota irrigation quota sets four levels（CK,3/4CK,2/3CK,1/2CK）,even number times irrigation quota sets three levels（CK,3/4CK,2/3CK）.The functional relationship between water consumption and yield is established.The appropriate interval for water consumption is[90mm and 104.48mm].According to irrigation water use efficiency and net economic benefit of watermelon in greenhouse of different irrigation modes can be sure the watermelon in greenhouse economic irrigation quota for the optimal interval is[88.8mm to 106.6mm].A comprehensive analysis is made of the irrigation water use efficiency.Net economic benefit and unilaterally water efficiency can get 3good test processing are T3,T5,T4.

关 键 词：干湿交替灌溉 耗水量 产量 作物需水系数 

分 类 号：TV93[水利工程—水利水电工程] S27[农业科学—农业水土工程]