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中文摘要：
为了探究滴灌条件下糖料蔗灌溉制度,分别选取桂南、桂中、桂北3个主要蔗区开展大田试验,观测分析不同灌溉制度下糖料蔗灌溉定额及产量情况,以产量最高条件下灌溉定额最小为评价标准,优选滴灌条件下糖料蔗节水型灌溉制度。结果表明,在糖料蔗生育期的萌芽期、幼苗期以及成熟期,糖料蔗所需的灌水次数较小,只需要1至2次便满足其生长所需,伸长期是糖料蔗需水最多的时期,需要灌水9至14次。桂北区糖料蔗灌溉定额最高,其次为桂中区,桂南区的糖料蔗平均灌溉定额最低。3种灌溉保证率下桂南、桂中、桂北区的糖料蔗平均灌溉定额分别为1 547、1 806和1 963m^3/hm^2。
英文摘要：
In order to explore the water-saving irrigation system of sugarcane using the drip irrigation method,three main sugarcane areas are selected to carry out on-the-spot experiments in South,Middle and North Guangxi,observing and analyzing irrigation norm under different irrigation systems.The results show that there is little irrigation frequency for sugarcane stages in germination,seedling and maturation to meet the needs of its growth.However,it needs irrigate nine to fourteen times to meet the water requirements of sugarcane during the elongating stage.The area of highest average irrigation norm is North Guangxi,followed by middle Guangxi,and south Guangxi is the lowest area of irrigation norm.The average irrigation norm under three kinds of irrigation assurance are 1 547,1 806 and 1 963m^3/hm^2 for south,middle and north Guangxi respectively.
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