Measures to Improve Fruit Setting Rate in Jujube Trees

1. Improve the nutrient level of the tree The topdressing nitrogen fertilizer can be applied in the bud stage and young fruit period to ensure the nutrient demand of the flower and fruit.

2. Jujube and Kaijiao For Zhashu during the full flowering period, jujube and jujube can effectively inhibit the downward transport of organic nutrients and increase the supply of nutrients to the branches and leaves. 1 The opening period of the open armor is full flowering period. The first opening of the jujube tree begins 10 to 20 centimeters above the ground. The knife is used to peel off the depth of the xylem with a width of 0.3 to 0.5 centimeters. The strong tree should be broad and weak. Should be narrow, peeled and coated with pesticides to protect the mouth. 2 ç ‘ dates in the flowering period with a narrow sharp flat ax cut the main trunk, require the same depth, depth of xylem, the results of young trees cut once a year, full fruit tree cut 3 to 6 times a year, each time cutting three circles, ax was plum blossoms Shape, 2 to 3 cm apart.

3, spray growth hormone and trace elements naphthalene acetic acid, gibberellin, indole butyric acid can promote the jujube tree set fruit, of which full-spray 10-10ppm gibberellin at full bloom effect. Trace elements such as boron, manganese and zinc all play an important role in jujube flowering and fruit setting. Spraying 3000 times borax solution during flowering period can significantly increase fruit setting rate.

4. Spraying water during flowering period to increase air humidity When the relative humidity of air is lower than 60% to 70%, the pollen germination rate will be significantly reduced. During the flowering period, the winds in the north are more dry and droughty. Therefore, spraying water during the flowering period can effectively increase the fruit setting rate. The best water spray time is in the evening, followed by the morning and the worst in the middle and afternoon.

5, bee-assisted pollination jujube is a good honey plant, flowering bee can help spread the pollen.

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