新疆地下滴灌无膜移栽棉花水分生产函数试验分析  

Water Production Function of Cotton Transplanted without Film under Subsurface Drip Irrigation in Xinjiang

作　　者：雷成霞[1,2] 何新林[1,2] 王振华[1,2] 魏闯[1,2] 吕德生[2] 

机构地区：[1]现代节水灌溉兵团重点试验室,新疆石河子832000 [2]石河子大学水利建筑工程学院,新疆石河子832000

出　　处：《灌溉排水学报》2011年第4期132-134,共3页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(50809039);国家"十一五"科技支撑计划项目(2007BAC17B02)

摘　　要：通过田间小区试验,设置不同灌水处理,开展地下滴灌方式下,不同灌溉定额处理无膜移栽棉花水分生产函数的试验研究。结果表明,地下滴灌条件下,灌水量和耗水量呈良好的线性关系,籽棉产量与棉花灌水量、耗水量呈二次抛物线关系,当灌水量为444.26mm,耗水量为540.73mm,此时棉花产量和灌水生产效率均较高。综合考虑籽棉产量和灌水生产效率,在新疆北部年均降雨量200mm以下的干旱地区,得到地下滴灌无膜移栽棉花适宜灌溉定额范围为444.26～454.89mm,为地下滴灌棉花高效高产节水提供理论依据。A field experiment with different irrigation treatments was conducted on the water production function of transplantation cotton without film under subsurface drip irrigation. Results show that under subsurface drip irrigation, irrigation quantity and water consumption shows a good linear relationship, seed cotton yield, irrigation quantity and water consumption shows a parabolic relationship, while irrigation quantity is 444.26 mm, and water consumption ET is 540.73 mm, both cotton yield and irrigation production efficiency are higher. Taking into account synthetically seed cotton yield and irrigation production efficiency, in the northern of Xinjiang for arid area with average annual rainfall below 200 mm, the suitable irrigation quota range of transplantation cotton without film under subsurface drip irrigation is between 444.26 mm and 454.89 mm, which will provide theoretical basis for water-saving, high yield and efficient of subsurface drip irrigation in cotton.

关 键 词：地下滴灌 无膜移栽 棉花 水分生产函数 

分 类 号：S562[农业科学—作物学]