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The main technical content:
1 Pruning of long-line pruning of peach trees in winter, which overcomes the disadvantages of traditional short branch pruning such as complicated operation, time-consuming work, and poor fruit quality; compared with traditional pruning methods, it is easy to maintain the balance of vegetative growth and reproductive growth of the tree. , Saving pruning labor, good fruit tree yield and stable production performance; good lighting conditions within the crown, so that the orchard light irradiation area of ​​20% to 25%, so that the strong tree vigor, strong resistance, less disease; fruit coloring early, uniform coloring, fruit quality Good, sugar content is 1%~1.5% higher than traditional pruning methods; tree renewal is easy, and can effectively prevent baldness in the tree body;
2 Peach-tree water-saving cultivation techniques, the core of which is the use of fruit trees to produce water during the non-critical water-saving cultivation. That is, water-saving cultivation is conducted in the non-sensitive bio-developmental period during fruit tree production response to water stress. Widely used on peaches, apples and pears. In the water-saving cultivation of peach trees, irrigation can be saved during the vernalization period and fruit expansion period, and water balance can be achieved by using water stored in the tree during the water stress. The use of fruit trees to produce water during the non-critical period of water-saving cultivation, in addition to saving water, can also prevent fruit trees from prosperous vegetative growth, save pruning labor, improve labor efficiency and reduce production costs; during the water-saving period of production water demand is not critical , Fruit growth rate can be slowed down, but after the end of water saving can promote fruit growth, harvesting can get a larger volume of fruit; can promote flower bud differentiation, reduce pre-harvest fruit drop, can increase production.
The above technical achievements are advanced, mature, and practical. They have extensive application value in orchards. This achievement has been awarded the "Innovation and Technology Star" award by the China National Division of the United Nations Technology Information System.
Pruning of long branches of peach trees and water-saving cultivation techniques
In peach cultivation techniques, most of the orchards adopt the traditional close-closed planting method with short branches, resulting in confined orchards, which affect the ventilation and light transmission. The fruit trees are resistant to late frost damage and have poor quality. In the irrigation of peach trees, traditional flood irrigation is often used, and the water consumption is large, which has a greater impact on fruit yield, quality and storability. Professor Li Shaohua, an expert on fruit tree cultivation at the Institute of Botany, Chinese Academy of Sciences, focused on practical production issues and researched the techniques for pruning long branches and water-saving cultivation of peach trees.