Controlling the strong head and shortening the mother branch refers to pruning the long branches that grow vigorously at the top of the plant to coordinate the upper and lower mother branches. Before pruning, the autumn branches and branches should be updated, that is, pruning the old branches in autumn, pruning the weak branches and retaining the strong branches, and pruning the weak branches and retaining the strong branches first after pruning, which can make the plants grow better in the coming year.
Walnut trees are generally pruned in winter, and the pruning formula is to control the strong head and retract the long mother branches. Autumn branches and branches should be renewed before pruning. Remove the weak and leave the strong branches, and take the lead after cutting. No head in winter, no head in the coming year. The pruning formula of walnut trees emphasizes pruning long branches, dense branches, weak branches and old branches in autumn, which can ensure the better growth of plants in the coming year.
In autumn and winter, the leaves of walnut trees begin to turn yellow, which is suitable for pruning walnut trees to avoid consuming a lot of nutrients. Pruning twigs and aged branches from walnut trees can preserve nutrients. Branches with long crown need to be cored, and residual leaves, old leaves and dead leaves on the trees need to be cut off in time.
Proper pruning of walnut trees can preserve nutrients for trees and make them store nutrients, which is beneficial to the growth of trees in the coming year. When pruning, be careful not to prune a lot of main branches, trees have few branches, and don't over-prune side branches. If there are diseased branches and leaves on the tree, the diseased plants should be cut off in time and treated with relevant chemicals.
Pruned walnut trees should be disinfected with plant ash or carbendazim solution. Walnut trees need to control the ambient temperature in winter. If the temperature is warmer, they need to replenish enough water for the plants to prevent them from being in a state of water shortage, and the water should not be too much, otherwise it will affect the growth of the plants.