The pruning of jujube tree is an important technical measure of jujube management, which includes two kinds of pruning during dormancy period and pruning during growth period. Dormant pruning is also known as winter shearing. Winter shears are generally carried out after defoliation and before germination. Jujube dry out, mainly occurred in the wrong choice of sapling and winter cutting time just planted for a year or two.
First, the prevention of draining of young trees should adopt plastic film dressing measures. Before winter snow, wrap around the plastic wrap (cut the film into strips 3 cm wide and 1 meter long) and wrap 25-30 cm above the ground. The winding must be tightly wound to prevent the snow from soaking the bark when the snow melts. In the spring, the snow melts and the film is sprayed (fungicide). This method is used continuously for 2 years in the young tree period. After the tree age is 3 years old, the trunk of the trunk will be thickened and aged, and it will have its own protection ability, so it will not cause cracking skin and draining.
Second, the prevention of dry perennial jujube trees. There are two ways: First, pruning in the growing season. The pruning in the growing season, also known as the summer cut, refers to the pruning of the entire growing season after the budding of the jujube tree begins. The purpose of pruning in the growing season is to regulate nutrient distribution, avoid inadvertent consumption of nutrients, reduce flowering and fruiting, increase fruit setting rate, and improve fruit quality. At the same time, timely removal of pests and branches, with the comprehensive prevention and treatment of pests and other work.
The second is a reasonable choice of winter shears. The wound healing of jujube trees in winter is slow. In northern regions, winter pruning is generally selected from early March to early April in order to prevent draining. But it should not be too late, trimming too late will affect the beginning of the jujube. The growth of jujube head is not good, which is not conducive to the cultivation of the branches at all levels.
If we can insist on pruning from the growing season at any time after planting, the nutritional loss will be small, the effect of shaping and promoting fruit setting will be better, the workload of winter pruning will be less, and the phenomenon of draining will be greatly reduced.
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