Harvest ripe fruits, pile them up, mash them, remove the pulp, dry them, and collect pure seedling seeds for autumn sowing. Soak the seeds for 5-7 days before sowing. Autumn sowing seeds germinate early in the second year, with high emergence rate, fast growth and strong growth.
When sowing in the next spring, seedling seeds need to be stored in wet sand for more than 120 days. Drill sowing is adopted, the banner is 10 cm, the depth is 1-2 cm, and the soil is covered with 6 cm after sowing. Sow 25- 30 kilograms per 667 square meters. The height of the seedlings is 3 cm, the seedlings are fixed, and the spacing between plants is 20-25 cm.
Cultivation techniques of peach trees
1. Seedling raising: When the height of the seedling is 25 ~ 30cm, the seedings will be removed to make the seedling thicker, and the required rootstock thickness can be reached by the end of summer and early autumn. Transplanting should be done after defoliation in early spring or autumn. Small seedlings can be transplanted with bare roots or mud, and large seedlings need to be transplanted with soil balls. Cultivating large seedlings requires pruning to form a skeleton. Peach trees merge into a natural cup-shaped crown and a natural happy crown.
2. Planting: The plant spacing is 4× 5m or 3× 4m, and 500 ~ 840 plants are planted per hectare. The planting period can be from defoliation to germination.
3. Fertilization: The demand ratio of peach for nitrogen, phosphorus and potassium is about 1: 0.5: 1. Young trees should pay attention to controlling the application of nitrogen fertilizer, otherwise it will easily lead to excessive growth. After the full fruit stage, nitrogen fertilizer was added to enhance the tree vigor. The content of potassium in peach fruit is 3.2 times that of nitrogen. If potassium fertilizer is applied, the fruit will be large and the yield will be high. Results The tree was fertilized three times a year, and the basal fertilizer was applied during the period of 10 ~ 1 1, with organic fertilizer as the main fertilizer, accounting for 50% of the annual fertilization.
4, plastic surgery: more into a natural and happy shape. The height of the stem is about 60 cm, leaving 3-4 main branches, and the opening angle of the main branches is 50-60. Each main branch should have 65,438+0-2 auxiliary branches, and the branchlets on the main branch and auxiliary branches should be as few as possible. Pruning period includes winter pruning and summer pruning.
Extended data
Matters needing attention in peach tree planting:
1, the first year plastic surgery management is the key. After the seedlings germinate, keep one main branch to grow upward, and cut off the side branches whose thickness is more than half of the main branch at any time to prevent the side branches from competing with the main branch for nutrients and affecting the upward growth of the main branch. Leave the branch 40 cm away from the base of the main branch.
2. Strengthen cultivation management, apply more organic fertilizer and phosphorus and potassium fertilizer, timely prune in summer, improve the landscape conditions of trees, remove diseased fruits, prune diseased branches in winter and burn them centrally. Nitrogen fertilizer and urea are applied in stages in the early and middle stages to promote the rapid growth of seedlings, which can generally grow to more than 2.5 meters in that year.
References:
Baidu encyclopedia-peach