1, increase the light. Jujube is a positive tree species and likes plenty of sunshine, especially at flowering stage. If the sunshine is insufficient, it is easy to bloom less and pollinate badly after flowering. But jujube is planted in a small yard and can't move back and forth, so how can we add more light to jujube?
We can make jujube trees ventilated and receive more sunshine by pruning. Generally, we prune jujube trees, mainly cutting off dead branches, weak branches and twigs to make jujube trees more ventilated and transparent.
2. It is necessary to apply phosphorus and potassium fertilizer properly during the growth period of jujube trees, but don't apply nitrogen fertilizer before the jujube trees bloom. Because if nitrogen fertilizer is applied before flowering, it is easy to cause jujube trees to grow white, so jujube trees will have fewer flowers and it is more difficult to pollinate and set fruit.
In order to make jujube blossom and bear more fruits, phosphorus and potassium fertilizer can be applied before jujube blossom, which can promote jujube blossom and help jujube set fruit.
When the jujube tree reaches the fruit-setting stage, we can also apply nitrogen, phosphorus and potassium fertilizer to the jujube tree, so that the jujube tree can grow fast and big without losing fruit.
3. Promote flowering and fruit-setting When jujube trees bloom, we can spray anti-falling agents on jujube trees, which can promote jujube trees to bloom and fruit-setting, so as not to sit still.
There is also the flowering period of jujube trees. If the weather is too dry, it is also very unfavorable for jujube trees to blossom and bear fruit. In this case, we can spray water on jujube trees and increase air humidity to promote jujube flowers to pollinate better without burning.
Besides, we can also water jujube trees. In order to make the soil moist, we should give jujube trees more water so as not to burn flowers.
4, girdling jujube trees If jujube trees grow too vigorously, even if a large number of flowers bloom, it is not easy to bear fruit. In this case, we need to treat jujube trees properly to make them bear more fruits.
In this case, what we need to do for jujube trees is girdling, that is, pruning jujube trees. On the trunk of jujube tree 30 cm from the ground, scrape the bark of jujube tree from the annual ring about 3 cm with a scraper, and the depth is better to remove the bark outside, and the incision should be straight.
Jujube girdling is mainly aimed at jujube trees that are growing too vigorously, and jujube trees that are growing too weakly do not need girdling. By girdling the jujube tree, the overly robust jujube tree can be weakened, which is more conducive to flowering and fruit setting. The experiment shows that the fruit setting rate of jujube trees after girdling is 205% higher than that of jujube trees without girdling, which shows that this method is still very effective.
Autumn is very suitable for planting jujube trees, especially winter jujubes. After we plant the winter jujube tree, when the winter jujube tree blooms, as long as we do the above four points, the fruit setting rate of the jujube tree can be improved a lot. When the jujube is ripe, we can see the jujube seeds covered with branches.