How to manage peach trees after harvest? These key points you need to know
It is now the season when peaches ripen and hit the market. As peaches are gradually marketed, post-harvest management of peach trees is also quite important, as it determines the disease situation and yield level for next year, so management at this time must be taken seriously. So how should peaches be managed after picking? Let's learn about it together.
1. Pruning and care
At this time, the pruning principle is to cut small branches, not large branches; cut current-year branches, and it is not advisable to cut current-year branches; pruning time should be early rather than late; pruning degree should be light rather than heavy; the principle of reducing yield in small amounts multiple times. For upright, vigorous branches on the back that seriously affect light, cut them off from 15 cm above the base, as long as they do not affect the light of the lower fruiting branches. If cut from the base, excessive autumn rain can easily cause excessive vegetative growth. In addition, the pruning principle only requires good ventilation and light penetration, and pruning should not be too heavy, so as to avoid autumn shoots sprouting from fruiting branches.
2. Root irrigation and topdressing
After fruit harvest, fertilize in combination with weeding. For plants with a large number of fruits and low nutrient consumption, apply early and heavily. Dig a ring-shaped trench around the outer edge of the canopy, with a depth of 40-50 cm being suitable. Apply microbial organic fertilizer. If there is little rain and it is relatively dry, you can pair it with humic acid water-soluble fertilizer to supplement comprehensive nutrition for the tree, and at the same time it can activate and improve the soil, increase the utilization rate of organic matter, and improve the immunity and stress resistance of peach trees. For root rot and weak tree vigor, you can use metalaxyl and hymexazol to irrigate the roots when fertilizing, kill the pathogens, and promote wound healing.
3. Spraying and trunk brushing
Before leaf fall, you can spray foliar fertilizer potassium dihydrogen phosphate solution, once every 15-20 days. After fruit harvest and before leaf fall is the period of nutrient storage for the plant. Spraying potassium dihydrogen phosphate at this time can increase leaf chlorophyll content, promote the plant's photosynthetic efficiency, synthesize more nutrients, increase chlorophyll content, and prevent various diseases such as peach bacterial shot hole and brown spot. For those that previously had gummosis, grafted parts, wounds on branches and trunks, or weak growth, you can apply carbendazim or lime sulfur mixture to the branches and trunks before leaf fall in autumn to promote wound healing and also enhance cold resistance.
The above is an introduction to the key points for managing peach trees after harvest. I hope it can help you. To learn more related knowledge, please follow us.