摘要
采用日光温室小区栽培番茄的试验方法,对沟灌、膜下滴灌和普通渗灌、节点渗灌4种灌溉方法耗水特点进行研究,探讨了不同方法灌溉灌水量与番茄产量、水分利用效率之间的关系,分析了不同灌溉方法耗水差异产生的机理;得出沟灌、膜下滴灌和普通渗灌、节点渗灌灌水量分别为1473.99、1181.66、1168.078、89.91 m3/hm2,水分利用效率分别为42.00、53.96、54.557、0.37 kg/m3,结果表明,节点渗灌具有灌水量少、水分利用效率高、灌水后对地温影响小等优点,应在日光温室番茄栽培中优先选用。另外,温室内水面蒸发量可以用来指导灌溉,作为判断灌水量的参考。
Water consumption characteristics of four irrigation methods, furrow irrigation, under-mulching-drip irrigation, subsurface irrigation and node subsurface irrigation, were studied by tomato greenhouse experiment. The relationships between irrigation quantity and yield, water use efficiency of tomato were discussed. The mechanism of water consumption differences was analyzed. Furrow irrigation, undermulching-drip irrigation, subsurface irrigation and node subsurface irrigation of irrigation quantity is 1473.99, 1181.66, 1168.07, 889.91 m^3/hm^2, water use efficiency is 42.00, 53.96, 54.55, 70.37 kg/m^2, respectively. The results showed that nod subsurface irrigation is suggested optimal irrigation method because of the advantages of fewer irrigation quantity, high water use efficiency and little effect on soil temperature. In addition, water surface evaporation can be used to guide irrigation practice in greenhouse.
出处
《灌溉排水学报》
CSCD
北大核心
2009年第3期105-107,共3页
Journal of Irrigation and Drainage
基金
辽宁省教育厅资助项目(05L386)
辽宁省博士启动项目(20061043)
辽宁省教育厅创新团队资助项目(2007T156)
关键词
日光温室
灌溉方法
番茄
节水效果
solar greenhouse
irrigation method
tomato
saving water effect