通过利用先进的土壤水分测量仪,对雷州半岛春季西瓜种植期间逐日的土壤含水量进行连续测量,初步弄清了砖红壤的水分迁移变化规律,在此基础上进行了西瓜最佳灌溉模式的初步研究,利用土壤含水量的测量结果来控制灌溉次数和每次灌溉水量,研究结果表明,在无需增加节水机具等投入的情况下,采用合理的灌溉模式比一般常规灌溉模式节水25.2%,如果能对每次灌溉水量进行有效控制和适当缩小西瓜种植穴的直径,节水效率还可进一步提高。 By using the advanced soil moisture measuring instrument, the daily soil water content during the spring watermelon cultivation in Leizhou Peninsula was measured continuously. The law of water migration in the red soil was preliminarily ascertained. Based on this, the preliminary watermelon irrigation pattern was preliminary The results of the study showed that using reasonable irrigation patterns could save 25.2% of water consumption compared with the conventional irrigation patterns without the need for additional water-saving tools and other inputs, If we can effectively control the amount of water for each irrigation and properly reduce the diameter of watermelon planting hole, water saving efficiency can be further improved.