Plum pruning time and method
After plum blossoms bloom in early spring, the growth of branches and leaves enters a critical period. Reasonable pruning techniques are not only related to the aesthetic beauty of plant shape, but also directly affect the amount of flowers in the coming year. Mastering scientific plum pruning methods can give new vitality to the ancient branches and branches and create the beauty of thin shadows and horizontal oblique artistic conception. The golden period for plum pruning is the key period for germination after flowering. March to May is the best window period for plum pruning. At this time, new buds first sprout after the flowers wither, and the flow of nutrients can be accurately controlled through pruning. Choosing sunny morning operations to avoid rainy weather can effectively reduce the risk of bacterial infection. The time for secondary pruning can be supplementary pruning in midsummer and July, focusing on dealing with long branches. Winter pruning is limited to clearing dead and diseased branches to avoid large-scale pruning affecting flower bud differentiation. The three major pruning core technologies are intelligent and bud control forms to retain 2-3 full buds per branch, and allocate them according to the principle of "retaining more strong branches and less." When modeling bonsai, directional bud retention method can be used to guide the direction of branches through the direction of bud points. Precise short cutting to promote branching, annual branches retain 3-5 bud eyes short cuts, and the distance between the 45-degree oblique cuts is 0.5cm away from the bud point. When renewing old branches, retract pruning is used to stimulate hidden buds to germinate new branches. Scientific thinning of branches and ensuring transparency adopts the "three-cutting method" to deal with redundant branches: first cut parallel branches, then clear cross branches, and finally thin inward branches. Keep the spacing between the branches at 10-15cm to ensure that the crown has an umbrella-shaped light-transmitting structure. Key points for wound maintenance Double protective treatment of incisions with a diameter of> 1 cm requires first applying a wound healing agent, and then spraying 600 times chlorothalonil. Apply evenly with a brush to ensure that the agent penetrates into the xylem. Environmental control strategy Avoid getting wet within 7 days after pruning, moderately cover shade and strengthen ventilation. Use bamboo curtains to block out strong light and maintain air humidity at 60%-70% to promote healing.
Through scientific pruning timing and standardized wound management, it can not only shape the artistic form of plum blossoms, but also enhance the plant's stress resistance. It is recommended to cooperate with the application of phosphorus and potassium fertilizers to allow pruned plum blossoms to accumulate energy, and look forward to the "suddenly fragrant fragrance overnight" scene in the coming year.