First, Qingyuan
After picking the peach trees, the garden should be cleared in time to clean up and bury the rotten fruit, pests, leaves, weeds, etc. in the peach garden to eliminate the spread of pests and diseases.
Second, cultivating
After picking the fruit, the soil is ploughed in time, with a depth of 10 to 15 cm.
Third, fertilizer management
1. Topdressing. During the growth of the fruit, the peach tree consumes a lot of tree nutrients, lacks nutrients in the body, and needs to replenish nutrients in time to restore the tree potential. In the vertical projection of the canopy, the outer edge of the canopy is dug, and the plant is applied with 1 kg of urea, 2 kg of ammonium bicarbonate and an appropriate amount of phosphorus and potassium fertilizer. Foliar fertilizer, such as 1% urea solution and 0.2% potassium dihydrogen phosphate solution, can also be sprayed to prolong the seedling period and accumulate more nutrients.
2. Apply enough base fertilizer. The base fertilizer is mainly composed of fully decomposed farm organic fertilizer, supplemented by ternary compound fertilizer, with the trunk as the center, 35 to 40 cm away from the trunk, and 4 to 8 radial grooves are dug, near the dry end, 15 to 20 cm deep, distal Deep 35 ~ 40 cm, 4000 kg per mu of high-quality ring fertilizer + 30 ~ 40 kg of potassium sulfate, watering after fertilization.
3. Watering. After the peach harvest, there is more rainwater, so you don't need to water it. If the drought time is too long, you can water it to make up for it. In the rainy season, it is necessary to drain and prevent phlegm, and the frozen water is poured once before the soil is frozen.
Fourth, timely pruning
1. To remove the dense stalks, leave 1 to 2 pairs of stalks for the strong branches, and leave the stalks for 35 to 40 cm long. The new tip of the lignification should be lightly cut. For the unsettled long-term results, the branches are topped.
2. Cut 2 to 3 prepared branches from the base of the result. For the last year's winter shearing, the twisted, pressed, and pulled branches can be shrunk at the base tip, or cut at the curved tip, and then the heart is topped.
3. Update and rejuvenate weaker middle and small branch groups and horizontal drooping branches. Remove the erect, dense and diseased branches on the Wangzhi group. If there is space, leave a short section of 15-20 cm.
V. Prevention and control of pests and diseases
The main pests and diseases after peach harvesting are bacterial perforation, aphids, leaf miner, red spider, gum disease, etc., and should be timely controlled.
1. Bacterial perforation. To prevent the main, starting from the beginning of June, the foliar application of zinc sulfate lime liquid, the ratio of zinc sulfate: quicklime: water in a ratio of 0.5:2:120, once every 15 days, a total of 4 to 5 Times.
2. Aphids. It can be controlled by 10% imidacloprid 3000 times solution or 5% acetamiprid 1500 times solution.
3. Red spider. It can be controlled by using 1.8% avermectin 3500 times solution or 20% phlegm 1500 times solution.
4. Leaf miner. It can be controlled by 25% diflubenzuron 3 and 1000 times solution.
5. Flow gum disease. First, try to avoid mechanical damage to the branches; second, after scraping off the glue on the branches, use 10 parts of quicklime, 1 part of stone sulphur mixture, 2 parts of salt, 0.3 parts of vegetable oil and appropriate amount of water to prepare a protective agent. Apply the affected area or the cut.
6. Pear small heartworm. It can be controlled by 4.5% beta-cypermethrin 2000 times solution or candidate salt 4000 times solution.
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