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为了研究龙眼的需水规律及其微喷灌的增产效益,选择“福眼”和“东璧”2个龙眼品种,应用微灌技术,做微灌与不补水的单因素对比试验。试验设置树冠微喷灌、树下微喷灌、涌泉灌、对照4种处理,分别测量了喷灌水量、需水量、需水强度及果实产量、质量,并对各处理的试验结果进行了分析。树冠微喷灌与树下微喷灌效果基本一致,可根据龙眼果园的地貌等条件选择不同的喷灌方法,涌泉灌处理灌水效益不明显。
In order to study the rule of water requirement of longan and the yield increase of its micro-sprinkler irrigation, two longan varieties of “Fuye” and “Dongbai” were selected. The micro-irrigation technique was used to do the single factor comparative test of micro-irrigation and non-water supplement. The experiment set up the canopy micro-sprinkler irrigation, the tree sprinkler irrigation, the spring irrigation and the control four kinds of treatments. The sprinkler irrigation water quantity, the water requirement, the water requirement intensity and the fruit yield and quality were measured respectively. The test results of each treatment were also analyzed. Canopy micro-sprinkler irrigation and tree under the effect of micro-sprinkler basically the same, according to the longan orchard morphology and other conditions to choose different sprinkler irrigation method, irrigation effluent irrigation irrigation benefit is not obvious.