用六年生桃树（Ｐｒｕｎｕｓ ｐｅｒｓｉｃａ（Ｌ）Ｂａｔｓｃｈ ｃｖ Ｒｅｄｇｌｏｂｅ）从１９７３ 年开始按三种定额进行滴灌试验至１９７６年。利用敞口皿蒸发耗水作为计算理论 灌溉需水量的依据。尽管大约６５％的试验期间，降雨超过了平均降雨量，但滴 灌（按理论需水量的１　倍）还是增加了单株产量、果实大小、单株花芽数量， 并且树干直径超过了没有灌溉的树。以１　计算定额进行滴灌，增加了单株平 均产量、果实大小、并且树干直径超过了采收前喷灌一次的树。 Three years of drip irrigation trials from 1976 to 1976 were carried out with perennial peach trees (Prunus persica (L) Batsch cv Redglobe). The use of dish evaporation water as a theoretical basis for calculating the amount of irrigation water requirements. Although rainfall exceeded the average rainfall for about 65% of the trials, drip irrigation (doubling the theoretical water requirement) increased yield per plant, fruit size, number of flower buds per plant, and trunk diameter surpassed that of unirrigated trees . Drip irrigation at a fixed value of 1 increased the average yield per plant, the size of the fruit, and the diameter of the trunk exceeded the tree sprayed once before harvest.