At present, the plastic surgery method has been patented (it is provided to farmers for free on the agricultural medical platform, so look carefully and hope it will help you).

At present, the main tree shapes used in peach production in China are three main branches, two main branches, natural cup shape and natural spindle shape. The main problem is that the plastic pruning technology is relatively complicated, which is difficult for untrained fruit farmers to master; Slow molding and low early yield; The crown is too open, the bearing capacity is not enough, and it is easy to close after entering the high-yield period, which leads to poor working environment and poor ground illumination in the orchard, so it is impossible to grow grass; Due to the large opening, small crown volume, superficial illumination and results, the contradiction between yield and quality is prominent.

In recent years, some peach orchards in the peach producing areas of the Yellow River valley have adopted the method of trunk shaping, which has developed rapidly. This kind of tree has the advantages of fast tree formation, good light, simple technology, early production period, quick effect and high yield, and is welcomed by fruit farmers. However, the disadvantage of trunk shape is that it is difficult to control the tree potential, especially in the early stage of production, a large number of growth regulators such as paclobutrazol and PPO should be used, which brings hidden dangers to the green and safe production of fruits. In addition, the high density of trunk planting and the large amount of seedlings also increase the cost of garden construction.

Here, I would like to recommend to you a new shaping and pruning mode created by combining traditional shaping methods with trunk pruning technology-semi-upright multi-main-side high-efficiency tree (secondary branchless, referred to as 3S).

The main characteristics of 3S tree

1, depending on the plant spacing, each plant has 2~4 main branches, and the main branches are directly planted with fruiting branches or fruiting branches, generally without side branches.

2. The main branches are pruned and managed according to the shape of the trunk, and single branch renewal is generally adopted.

3. Each main branch is semi-upright, and the included angle between the main branch and the vertical direction is 20~30 degrees.

Key points of 3S tree shaping and pruning technology

1. Selection of plant spacing and row direction: it is suggested that the plant spacing is 1.2m× 4.0m, with 2 main branches per plant per mu 138 plants; Or the plant spacing is 2.5m× 4.0m, and there are 67 plants per mu, each with 3~4 main branches. North and South.

2. In the year of planting, the stem should be fixed before germination, with a height of 40 cm to 50 cm. According to the spacing between plants, each plant should have two main branches, which extend to the east and west respectively. Or leave four main branches, two facing east and two facing west. By pulling or bracing, the main branch is semi-upright, and the included angle with the vertical direction is 20~30 degrees.

3. Maintain the top growth advantage of each main branch, and deal with the "side branches" that affect the extended growth of the main branch in time (cut off, sprain or re-cut short).

4. After mid-July, proper amount of paclobutrazol or PPO is sprayed on the crown to promote the transformation from vegetative growth to reproductive growth, form flower buds, and make the "side branches" on the main branches become fruiting branches.

5. When pruning in winter, long-tip pruning is generally used to remove only unsuitable knots.