Pruning time of plum trees in winter
Fruit tree management can not be separated from winter pruning, so can plum trees. Pruning in winter can not only control pests and diseases, but also control the nutrients consumed by its growth and make the tree transparent, so reasonable pruning is very important.
Pruning of plum trees is mainly divided into dormancy pruning and growth pruning, but it is currently in the stage of dormancy pruning.
Pruning from fallen leaves of plum trees to spring germination is called dormancy pruning or winter pruning. Control the best pruning time, the wound will heal quickly and the effect will be better.
The best pruning time for plum trees in winter is about 20 days after defoliation and before germination, that is, from the beginning of October to the end of mid-February in Gregorian calendar 65438+ year/kloc-0.
Pruning during dormancy can adjust the distribution of nutrients in the tree, restore the vitality of the tree, restore the vitality of the tree in time, and coordinate the relationship between reproductive growth and vegetative growth. Make the spring shoots extracted in the second year grow sturdily, and the flower organs develop vigorously.
Pruning diagram of plum tree
Young tree pruning
Plum trees that are 2 to 3 years old belong to young trees. Usually, after 3 to 4 years of continuous pruning, young trees can basically form a reasonable tree structure.
Pruning young trees in summer is generally to cut off side branches and redundant small branches. In winter, the pruning of young plum trees is mainly light cutting and slow release.
While selecting and cultivating the main lateral branches and completing the modeling, we should pay attention to balancing the tree potential. In order to fill the space, relax the tree potential and improve the early yield, more auxiliary branches can be reserved appropriately.
For varieties with vigorous growth and many branches, they can be lightly cut, and the angle can be widened by smoothing and pulling branches. For varieties with few branches, it is necessary to prune again to promote the growth of branches, so as to cultivate side branches.
For the backbone branches with weak growth, the branch angle should be increased, the extended branches should be cut off appropriately, and the growth can be enhanced by cutting more branchlets.
Pruning diagram of plum tree
Early pruning of trees as a result
The purpose is to shape the overall shape of plum trees, expand the crown range and cultivate as many fruiting branches as possible. Cut off branches with diseases and pests, overlapping branches and over-dense branches, reduce branch density, improve ventilation conditions of plum trees, increase illumination and save nutrients.
Don't cut too many times to avoid unnecessary growth. Observe the growth direction and position of branches inside the crown, and try not to cut them as long as the direction is appropriate.