研究了两种施肥水平条件下根区局部灌溉对甜玉米叶片光合、叶面积、干物质积累和水分利用的影响。
Effect of partial root-zone irrigation on the photosynthesis, leaf area, dry mass accumulation and water use of sweet corn under two fertilization levels was studied in this paper.
对局部控水灌溉（无压地下灌溉）技术从理论上进行了分析，并给出了其土壤水分运动方程。
Theoretical analysis of local-control irrigation, i. e. , non-pressure underground irrigation, is conducted, and soil water movement equation is presented.
通过研究固定根区水分胁迫下氮形态对玉米水分利用的调节与作用机制，为局部根区灌溉水氮高效利用提供理论依据。
Regulation and the mechanisms of nitrogen form on water utilization of maize under fixed partial root-zone water stress conditions were investigated.
“三通”结构形式的不同会造成不同的局部水头损失，对灌溉运行费用影响很大，所以对三通结构进行优化，减小灌溉水头和局部水头损失有相当大的意义。
The different structure of the three-way pipe lead to the different local loss of head, it cause a great influence on operating costs of irrigation.
“三通”结构形式的不同会造成不同的局部水头损失，对灌溉运行费用影响很大，所以对三通结构进行优化，减小灌溉水头和局部水头损失有相当大的意义。
The different structure of the three-way pipe lead to the different local loss of head, it cause a great influence on operating costs of irrigation.
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