Jujube tree armor is also called ring peeling, that is to temporarily cut off the phloem of the trunk, so that the nutrients made by the leaf blade are temporarily suspended and transported, so that the nutrients are temporarily concentrated in the upper part of the tree to meet the needs of flowering and fruit setting. After fruiting, A mouth heals, and the channel for organic nutrition transportation down the tree is switched on.
Open armor is one of the effective measures to improve the fruit setting rate of jujube trees, and it is very effective in promoting flower setting and fruit setting. The jujube tree armor mainly includes the following points:
First, open a tool kitchen knife, knife, ring knife.
Second, the open armored target armor should be carried out on a tree over 5 years old. Follow the principle of “big tree armor, old tree, small tree, and weak tree without armorâ€. The general requirement is basically formed on the canopy. Only 8 cm in diameter can be opened.
Third, the opening time jujube flowering period in May-June, jujube tree opening time generally in mid-June mid-flowering early, that flowering accounted for 30% -40% of the total number of buds of the whole plant, most of the results of jujube Hanging open 3-8 flowers, which is what people say half bud half period. At this time, the rate of fruit set in the open armor is high, and when ripe, the size of the fruit is neat, the color is good, and the sugar content is high. A must choose to open the wind without a sunny day, it is best not in the 48 hours after a drop in the heavy rain, or a bad mouth healing.
Fourth, open parts of the first time the opening of a jujube can be carried out at a distance of 25-30 cm from the ground, select the trunk smooth and unspun start, after the annual shift of 3-5 cm, until close to the first main branch, and then re Open from the base of the trunk.
Fifth, armor width A mouth width should be based on age, tree potential may be, big tree, Wang tree appropriate wide, strong tree in the 6-8 mm, generally controlled at 4-6 mm.
Sixth, open A method first scrape off the rough skin of the trunk of the open part, about 1.5 cm wide, exposing the pink cortex, and then with a ring cutter in the upper part of the scraping site diagonally inwards in a circle, deep to the xylem, will The bast tissue in the mouth of the armpits all squat. In order to promote wound healing, the operation requires that the entire ring is neat and uniform, and the width is uniform. The lower cut is inclined from the inside to the bottom to prevent water accumulation in the mouth. A mouth must be connected in a closed loop. The width of the entire mouth should be the same. Cut all phloem and remove the bast tissue from the mouth.
VII. A mouth should not be touched by hands or tools to protect the formation of the mouth after the armor is protected. Even the sap at the mouth of A mouth should not be erased. Attention should be paid to the protection of mouth A. After the mouth is dried, a pyrethroid drug can be applied to the water at mouth A, once every 7 days, 2-3 times in succession to prevent the occurrence of nail beetles. After 20 days, the wound is plastered with plastic cloth, 30 After days, the wound can heal.
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