Plant plum winter trimming carefully

Plum trees can enter the high-yield period after seven years of planting. The main task of winter shearing in this period is to maximize the yield per unit area and strictly control the formation of large and small years and rear bald zones.

The principle of winter shearing is mainly heavy cutting and the combination of weight and weight, in order to maintain the balance between growth and fruit, and the result of plastic surgery is mainly based on result.

In the winter pruning method, the extended branches of the main and lateral branches at all levels are cut with 1 stroke and 2 short cuts, and the flower-like fruit branches and short fruit branches are properly cut so as not to weaken the tree potential; the main and side branches can be retracted properly in the case of drooping of the main branches and connection between the rows of plants. The fruiting branch group should be transferred to a bouquet-shaped fruit branch group, which should account for more than 90%. Pay attention to the culture on 2-3-year-old branches, which should be cultivated as soon as possible, and the branches will be bald if it is too late, so it is difficult to cultivate. The renewal and rejuvenation of the weak fruiting branches is the key to overcoming the big and small years and the bald zone. the main techniques are "one cut, two releases and three shrinks" and the methods of removing the weak and staying strong, removing the edge and keeping the middle, and leaving the upper and lower, that is, the extension of the main and lateral branches at all levels is cut short, and the second and third lateral branches are intercepted. 2; pay attention to the thinning and early cultivation of overgrown branches, dense branches, overlapping branches and cross branches; retract the branches that bloomed and fruited last year. The medium fruiting shoots were cultured by "cutting first and then releasing" and "releasing first and then cutting" to the developing branches and few flower branches.