From the buds of jujube trees to flowering (late April to mid-May), pruning is performed using methods such as opening angles, incisionals, brushing buds, and picking the hearts.
Opening angles, such as support and pull, open the branches to the desired angle and position. The main objects of open angles are erect branches, branches, cross branches, and overlapping branches. According to the survey, upright branches with a diameter of 3-4 cm and a length of more than 2 meters can only produce 1.5 kg of jujube, and after the opening angle of 60-70, the output can be increased to about 5 kg. When opening the angle, it is necessary to prevent the branches from splitting and the branches cannot be bowed.
Injury is made by carving a crescent on the top of the bud or on the lower part of the branch (the maximum width of the two blades cannot exceed 0.3 cm) and smearing Kao No 2. Promote fruit trees to regulate nutrition, more flowering, more fruit set, completely balance the size of the year. Promote the germination of the main buds; balance the vigor and control strong growth.
After germination of the budding jujube tree, when the shoots grow to 5-10 cm in length, the unwanted shoots on the branches are erased in time, which can save nutrition and increase the fruit setting rate.
Topping is mainly used for twigs that germinate on the second branch of jujube. This part of the twigs, such as cutting off the second branch together, will reduce the area of ​​results, such as clipping from the jujube stocks, the jujube stocks will no longer germinate in the second year, and it is easy to stimulate the secondary branch to retransmit other jujube stocks. Zaotou, after picking the heart, pruning the mouth and applying anti-corrosion film to protect the growth of the wound healing tissue and the infection of the antiseptic rot.
The correct treatment should be below the permanent secondary branch of the twig, leaving two sections of exfoliative secondary shoots topping. The less harvesting of the year has a significant increase in yield, while retaining two sections of axillary buds, and jujube can also be sprouted in the following year. Jujube stocks.
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