美国印第安纳州西南部排水良好的沙壤土是西瓜生产比较理想的土壤。但这些土壤的阳离子交换量及持水量通常较低,在大雨或干旱期间便会出现严重的淋溶或水分胁迫,进而影响西瓜的产量和品质,并降低经济效益。因此,在这样的土壤条件下,良好的土壤及水分管理对西瓜的商品生产是十分重要的。 Well-drained sandy loam in southwestern Indiana is the ideal soil for watermelon production. However, the cation exchange capacity and water holding capacity of these soils are usually low, and severe leaching or water stress occurs during heavy rains or droughts, thereby affecting the yield and quality of watermelon and reducing economic benefits. Therefore, under such soil conditions, good soil and water management is very important for the commercial production of watermelon.