1. The flowering period of jujube trees is generally from May to June. At this time, it is the period when new shoots and new roots of jujube grow rapidly. This has the problem of nutrient competition between vegetative growth and reproductive growth. Therefore, if nutrients are supplied to If the amount of flowers is insufficient, the bracts will not be fully developed and the pollination and fertilization will be poor. Within 1 week after flowering, these flowers will all fall off.
2. During the flowering period of jujube, if there is a prolonged dry weather, pollen tubes will not germinate and pollen will not spread, so that the amount of pollinated flowers will be reduced, and no pollinated flowers will fall off.
3. When the jujube blooms, if it rains for a long time, it will cause poor pollen flow and reduce the number of insects. Therefore, poor pollination causes a large number of uncompleted flowers to fall off.
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