1, tree and structure:

Using thinning and pruning method, it is suitable for two main branches and three main branches to be open-shaped. The opening angle of the main branches is 30-40, and the height of the trunk is 70cm. Instead of cultivating side branches on the main branches, large branch groups are cultivated at an angle of 90, and each main branch cultivates 2-3 large branch groups, which are scattered on both sides of the back, with an interval of 50cm from top to bottom and an interval of/from the same side.

2, summer pruning:

Twist the tip. When the new shoots grow to 20--30cm, twist the new shoots on the back and anticline of main branches, lateral branches and large branches to inhibit growth and promote flower formation.

Twist branches. When the base of the branch begins to brown and lignify, generally at the beginning of August, the branch is twisted, the main purpose is to open the angle, so as to prepare for cultivating the branch group. The object of twisting the branch is the auxiliary branch other than the main branch and the new shoots on both sides of the main branch, the length of which is more than 40cm. The method is to hold the base of the new shoot 10cm by hand, and twist it hard to make it180.

Take a branch. When the main branches grow upright and the angle is less than 30, take the branches to make them reach 30, and the time is from July to August.

Thinning branches. After the fruit is harvested, timely thinning should be carried out when the branches are twisted to droop in the previous year, and the top of the back that is not handled in time should also be thinned, and a part of the branches are too dense to improve the light.

The coring method should be used as little as possible in summer scissors, so as not to cause multiple branches and affect the illumination.

3, winter pruning:

Pruning of main branches. The extension branch of the main branch, with secondary shoots on it, is completely thinned in the upper part, and the long branches and long branches are thinned in the lower part, and the short branches are not moved, and the long branches are not moved, and the single head is extended; Uncontrolled competitive branches below extended branches, strong branches on the back and strong branches on both sides are all thinned out. Branches with twisted branches are all long, middle fruit branches and twisted branches can be cut off1/2, short fruit branches and bouquet-shaped fruit branches are thinned out too densely, and the rest are not moved. Long fruit branches are horizontally or droopingly long, and they are thinned out vertically or obliquely upwards.

The culture of branch group. The big branch group consists of strong and vigorous vegetative branches or long branches, and when there is space, continue to leave a single head to extend, thinning out the strong branches and untreated competitive branches on the back, thinning out the long fruit branches, and leaving the middle and short branches to bear fruit; The middle branch group consists of long fruit branches planted horizontally. During the culture process, attention should be paid to the first 1 year, which will be retracted in the second year. After the long branches are released, they will be extended and retracted again until the space is full. The branchlet group is formed by retracting the middle fruit branches. The branchlet group should be kept short and compact, and it should not be far away from the large and medium branch group or the main branch axis, nor should it be extended and enlarged.