2. Conditions for building parks
One is the temperature. The annual average temperature 12- 17℃, the average temperature in the growing season from May to September is 25℃, and the average temperature in 12- the following February is lower than 10℃. The second is the soil. Generally, soil can be cultivated, but sandy soil with good drainage and strong permeability is the most suitable. PH 5-6 is the best growth. The third is the terrain. The hillside slope should be built on a gentle slope with a slope below 15, and the slope direction should be south.
3. Grafting and planting
Scions were collected in the upper part of the periphery of 6- 10-year-old healthy adult peach trees.
Grafting was carried out from late August to mid-September, and bud grafting technology was adopted. Peach trees can be planted after defoliation in autumn and before germination in the following spring, especially in autumn. Dig planting holes before planting. The size of the planting hole should be 80cm× 80cm× 80cm. Apply organic fertilizer into planting holes or ditches. The selected seedlings have complete taproots, at least three undamaged lateral roots on the taproots, dense capillary roots, developed whole roots, no diseases and strong vitality. The grafted buds are full, complete and completely healed. The trunk is thick, without damage and quarantine diseases and insect pests, and the seedling thickness is more than 0.6 cm. Before planting, the roots of seedlings were soaked in 1% copper sulfate for 5 minutes, and then soaked in 2% lime solution for 2 minutes for disinfection. Planting density should be determined according to management level, varieties, pruning methods and site conditions (topography, soil and climate) in the park. Generally, the spacing between plants is (3-5) m× (4-6) m. ..
Post-colonial management
1, plastic trimming
Trees naturally like three main branches, and the trunk is 30-50 cm high. Choose three main branches. Scattered on the trunk. Each main branch is equipped with 2-3 side branches. Gradually form a small bending extension of the main branches, the crown is large but not empty, there are many branchlets but not crowded, and the whole tree has good light. Conducive to stereoscopic results, stable yield in high-yield period and long service life.
The height of the plastic stem is 50-70 cm, and the main branch is selected. Three new shoots with a horizontal included angle of about120 are selected as the main branches in the plastic belt. The lateral branches are arranged, the 1 lateral branch is 50-70cm away from the trunk, and the second lateral branch is 40-60cm away from the 1 lateral branch, staggered to both sides, and the angle is greater than the bottom angle of the main branch. Cultivate large and medium-sized fruiting branches, press and release them, that is, keep long branches in winter and cut them short by 20-30 cm to promote the lower branches. In the second year, dilute weak branches and keep strong branches, remove straight branches and keep oblique branches, and keep more internal branches in the upper part. Winter pruning is 65438+from early February to mid-February of the following year; The pruning of the growing season is from the beginning of April to the end of September.
Pruning should be light in the young tree period and the first fruit period, and pruning should be paid attention to in summer, and the number of branches should be increased, and the bearing branches should be cultivated evenly and reasonably. In the middle and late May, when the extension branches of the main branch and the side branch grow to 40-50 cm.