The suitable period of the golden silk jujube opening is the beginning of full bloom, that is, when most of the jujube hanging in the whole tree opens 4-5 flowers, it ends when the flowering amount accounts for 30% of the total number of flower buds. Generally before and after the awning species, the pods are more fruitful and fruitful, and they are easy to produce. The jujube tree that is first opened is to be carried out at a position 20-30 cm away from the ground in the tree trunk. Each year after opening, it is carried out about 10 centimeters above the mouth of the previous year. The open armor goes to the branch of the trunk, and then returns to the lower part of the trunk. get on. The specific operation is: first scrape off the old skin with a twist of the trunk, a width of about 1 cm, exposing the pink bast, and then use the A knife in the phloem cut two knives, deep to the xylem, two knife mouth spacing of about 0.5 cm , And then cut the bast to the edge of the knife, exposing the xylem. The first is to look at the tree vigor and the age of the tree to determine the width of the mouth, mature trees 0.5-0.7 cm, weak trees and young trees 0.3-0.4 cm. Second, the operation should be meticulous, a mouth smooth, wide and narrow, a phloem in all cut off the net, leaving no trace, the upper and lower ends of the mouth of the phloem still cling to the xylem, can not afford to reveal cracks, and must not hurt the xylem. Third, when cutting open, the knife is cut straight and the lower edge inclines upwards, so that the lower edge of the mouth is tilted downward to prevent accumulation of rainwater. After armoring, spread 50-100 times 25% of monocrotophos solution or other stomach poison pesticides in mouth A to prevent the damage of nail beetles. Apply once every 5 days for a total of three wipes. After 20 days of opening, the fruit set was basically stable, and the mud was used to smooth out the mouth and promote healing.
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