Summer cut time
The newly planted peach trees enter the fast-growing period in early and mid-June. When the new shoots germinate over 60 cm, the first summer cutting is performed, and the second summer cutting is performed in early and mid-July. The third summer cut in early and mid-August.
Reasons for summer cut
Because the peach tree needs strong light, the top advantage is large, and the life of the latent bud is short, if the main branch is too straight, it will cause the front to flourish and then wither, which is not conducive to the three-dimensional result. For example, if the vigorous stalks on the skeleton branches are not controlled, it will affect the light, disturb the tree shape, cause no distinction between primary and secondary, and is not conducive to flower formation and rapid expansion of the crown. However, if pruning is too heavy and leaves too few branches, especially if pruning is too late in summer, some extra-long competitive branches will grow to the level of "tree on the tree" and then be treated at one time, which will cause serious weakness of the tree and cause gum disease. Therefore, summer shears must be reasonable.
Summer cut method
1. Peach tree topping method
(1) Peach tree main branch topping method: First, according to the requirements of the happy shape, according to the size of the plant spacing, rationally equip the main branch. Generally, when the plant distance is less than 2 meters, you can choose to leave 2 main branches to extend between the rows (Y-shaped pruning); when the plant distance is more than 2 meters, you can choose to leave 3 main branches (the plane angle is 120° each other). ).
In the three months of June, July, and August, new shoots more than 10 cm from the apex were removed every 60 cm long. It is necessary to use the lateral branches to extend forward, make them turn left and right, and stretch forward in a flowing water style, so as to facilitate the balanced growth of the resultant branch group on the skeleton branch and the three-dimensional result.
(2) Peach side branch pinning method: When the plant spacing is greater than or equal to 4 meters or more, each main branch should be equipped with 2 large anticline side branches. Generally, the first side branch is 40-50 cm away from the middle stem, and the second side branch (opposite the first side branch) is about 100 cm away from the main stem. The topping method is the same as that of the main branch, but the lateral branches left for the first time should be outside the lateral branches.
(3) Topping other branches. The prosperous branches on both sides of the main side branches and the back can be left 5-10 cm for continuous topping to weaken the tree vigor, promote the growth of branches, promote the flowering, and cultivate into a large and medium-sized fruiting branch group. Moderate, flat and weak ones can be thrown still, leaving them to form flowers and supporting the tree.
2. Thinning
After the main branch is selected, the excessive vigorous branches on the main trunk can be thinned out as soon as possible, and the flat and weak ones can be left with the auxiliary tree. Don't remove too many branches at a time, and don't "match" the main stem.
3. Pull branches and top branches
If the angle of the main branch is too small, do not use the method of opening the angle of the "back branch to head", otherwise it will cause "the big tree is cut small and the small tree is cut". It can be opened in mid-to-late August (before and after the heat). If the angle of the main branch is too large, the twigs should be used to top up in time to promote the balanced growth of the main branches.
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