The result of trimming the chestnut tree
After the chestnut tree enters the fruiting period, the task of pruning should be to promote the development of a strong mother-branch, and only the production of strong branches can achieve high yield and stable yield. When pruning, the balance of growth and results should be adjusted with the amount of branching, depending on the specific conditions of the tree vigor. Pruning methods can be classified into two types: old trees, weak trees, and branches and branches, in order to concentrate nutrients and make the weak trees stronger; Wangshu and Wangzhi tend to leave more branches and branches to disperse nutrients and ease over-strength. The vigor of the tree and the growth of the Wang branch, the apostle's long branch turned into a result branch. First, the results of the mother of the pruning results mother branches strong, medium and weak, very weak, chicken claws five kinds. The strong result branches are more than 30 cm long, and there are generally 5-6 large buds on the tail branches, which have continuous results. Trimming such branches is too easy and long, and should be lightly sheared. In addition to removing the dense branches and the lower branches, two-year branches will retain 2-3 mother trees. In the middle of the strong result mother branch is as long as 30 centimeters, the tail branch often produces 3-4 big buds, after the result can continue to draw the result stick, but turns weak, so the two-year branch retains 1-2 result mother The branches are suitable to ensure that the strong branches can still be extracted after the results are guaranteed. The weak result mother branch is about 10 centimeters long, and there are 2-3 buds on the tail branch. If it is not removed, this branch results will be followed by the next year when the weak fruit branch is drawn, so the chestnut fruit becomes smaller and at the same time, due to insufficient nutrients, Increased physiological drop. Such a large amount of branch sparse shear, not only to spawn a part of the results of the mother branch, but also to the birth of this result of the mother branch of the perennial branches appropriate thinning, increase the amount of pruning. The branches with extremely weak branches below 5 cm resulted in only one big shoot on the tail branch, resulting in poor ability and severe physiological drop. Such branches should be reseeded or retracted, and the amount of branching should be 1/3 or 1/2 to make them rejuvenate. If there are a large number of chicken claws on the peripheral branches of the tree crown, only pruning and renewal pruning will be required. Second, the use of long branches in the canopy After the full fruit period, the chestnut tree parts continue to shift outward, the internal space continues to expand, then you can use the internal branch litchi latent bud initiation of the buds culture results into the results of the mother. The leggy branches that are near the base of the seedling tree should not be cultivated as the resulting mother branch; they should be removed promptly; the leggy branches that are drawn from the middle and upper parts of the trunk are generally relaxed, the internodes are short, and the buds are full and full, and can be transformed in the second year after germination. As the result of the mother branch, the peasant farmer calls it "the fruit doll branch" and should choose to stay in a place where there is a large space. The selected "fruit doll branch" will be released for the first year and the results will be available in the second year. Results 2-3 years after the "fruit baby sticks" should be controlled or removed, so as not to grow too much, disturbing the tree shape, affecting the light of the inner light. After removing the big "fruit baby stick", there will be a small "fruit doll branch" available for use. It is advisable to keep the "fruit doll branch" at an interval of 60-80 cm. If it is too dense, it should be removed from the base. Take care of the control of the "fruit branch". In addition to the rotational control method, the control method can be applied to the branches of the perennial "Fructus sinensis" branch, and the method of straightening the leaves and leaving them on the back can be used to trim and make it a permanent result. It is also possible to leave a 10-20 cm cut in the fruit of the year and cut off the shoot, and shoot it in the middle of June to pick up the heart. Third, the use of "succeeding branches" to control the results of the site part of the external shift of the crown is too large, bald and bare, can use the stem branches of the sprouting of the "fruit baby branches" as the main side branch "succession branch" to replace the long, excessive branches Head, to achieve the purpose of controlling the crown. The method is to leave the outgoing branch of the fruit doll at the 5-6 year old branch of the main branch. When the result is 3-4 years old, the original branch can be retracted to the "fruit branch." Recovering branches at the sulcus, latent buds can also sprout a large number of new "fruit baby branches." When the old "Fruit Waman" grows to 6-7 years old, it can use the new "Fruit Waha" to continue to supplement the results. In this way, the old branch is constantly updated with the "fruit doll branch" in the same place, and it can continue to produce results. 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