留6～7片叶摘心，坐果率、产量和总酸较高，但果粒重、果实含糖量和出汁率较低，果穗松散，而且增加了夏季修剪的用工量。
Fruit set rates, yield and total acid content were high, but berry weight, sugar content and juice rate were low for 6-7 leaves pinching, cluster apperars relax, and more workload in summer pruning.
对旱坡地密植枣园新生枣头的摘心试验表明：骨干枝枣头夏季适时摘心可有效地抑制加长生长，促进加粗生长，减少营养消耗，积累养分；
Timely tender top-picking of jujube new shoot on backbone branch in summer can effectively control long growth, promote thickening growth, decrease nutrition-consuming and accumulate nutrient.
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