枣树保花保果七法马成路枣树是多花树种，但落花落果严重。据调查，枣树自然生果率仅０．４—１．６％。即使产量较高的丰产树，坐果率也只有２％左右。果树落花落果的主要原因是：树体的营养不足，花器官发育差，花期干旱，限制花芽萌发，从而导致受精不良。为了提高产... Jujube Paul flower seven fruit trees into the road  jujube tree is more flowering species, but the drop is serious. According to the survey, jujube natural fruit rate of only 0.4-1.6%. Even with a high yield of high yield trees, the fruit setting rate is only about 2%. The main reason for the falling of the fruit tree is that: the tree is undernourished, the floral organ is poorly developed, the flowering period is droughty, and the flower buds are limited, resulting in poor fertilization. In order to improve production ...