干旱地区农业研究Issue(6)：73-77,5.
膜孔肥液多向交汇入渗特性及数学模型研究
Study on the infiltration characteristics and mathematical models of fertilizer solution bilaterally flowing into the film hole
摘要
Abstract
Based on the lab experiment,has analyzed the infiltration characteristics and put forward the four mathe-matical models for the fertilizer solution bilaterally flowing into the film hole .The reducing infiltration model was set up under the conditions that the free infiltration parameters and the reducing infiltration parameters of fertilizer solution flow-ing into film hole has been known .The piecewise function model was set up under the conditions that the infiltration model in each stage was total for the power function .The increasing infiltration ratio model was set up under the condi-tions of increasing infiltration rate that compared the fertilizer solution with the fresh water bilaterally flowing into film hole and the parameters of fresh water bilaterally flowing into film hole has been known .The reduction infiltration ratio model was set up under the condition of reducing infiltration rate compared the fertilizer solution single-line infiltrated into film hole with the fertilizer solution free infiltrated into film hole and the parameters of free infiltrationhas been known .These four models can be supplied rather accurate canculation results through the measured data .关键词
膜孔灌/肥液入渗/多向交汇/入渗特性/数学模型Key words
film hole irrigation/infiltration of fertilizer solution/bilateral intersection/infiltration characteristic/mathematical model分类
农业科技引用本文复制引用
董玉云,郭小雷,费良军..膜孔肥液多向交汇入渗特性及数学模型研究[J].干旱地区农业研究,2013,(6):73-77,5.基金项目
兰州交通大学“青蓝”人才工程基金资助计划资助；国家自然科学基金项目（50579064）；陕西高校省级重点实验室重点科研项目 （）
