福建省农科院蔗麻研究所科研人员开展甘蔗需水规律的研究.几年来通过控制不同士壤持水量的试验,结果表明:要获得高产高糖的蔗茎应该合理灌溉、科学用水.生长盛期要经常灌溉,使土壤持水量达到70～80%时.这比持水量40～60%的增产40～130%;糖分提高0.17～1.23%.而在工艺成熟期土壤持水量不低于30～40%时,不必灌溉. Researchers at the Institute of Sugarcane Research of Fujian Academy of Agricultural Sciences have carried out research on the law of water requirement of sugarcane.In the past few years, by controlling the water holding capacity of different soil types, the results showed that the sugarcane stem with high yield and high sugar should be irrigated properly and scientifically The peak should be regular irrigation, so that when the soil water holding capacity of 70 to 80%, which is 40 ~ 60% of the water yield 40 ~ 130%; sugar increased 0.17 ~ 1.23% .While in the process of mature soil moisture is not less than 30 ~ 40%, do not need irrigation.