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According to the experiments conducted in natural pastures in Maowusu Sandland, the factors that influence the leaf water potential of natural grass are studied in this paper.
以毛乌素沙地天然牧草为研究对象，采用田间试验对天然牧草叶水势的影响因素进行了研究。
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.
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。
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