枣树的花量虽然很大,但是落花落果却相当严重。据调查,枣的自然坐果率为0.4％—1.6％,晋枣的坐果率为1.39％。导致枣树落花落果的原因主要有:树体的营养条件不好,使花器发育不良;花期干旱,妨碍花粉发芽,从而授精不良。所以,在开花期应抓好下面几项措施,以提高坐果率。 Although the jujube flower size is very large, but the drop is very serious. According to the survey, jujube’s natural fruit setting rate of 0.4% -1.6%, jujube fruit set rate of 1.39%. The main reasons leading to falling flowers and deciduous jujube tree: the poor nutrition of the tree body, poor growth of flowers; flowering drought, impede pollen germination, and thus insemination. Therefore, in the flowering should do a good job following several measures to improve the rate of fruit set.