A method of using old litchi orchards to build litchi ear picking gardens

Abstract

The present invention relates to the technical field of fruit tree breeding, in particular to a method for utilizing old litchi orchards to build litchi ear-picking gardens, the method comprising (1) selection and thinning of old litchi orchards; (2) renewal and rejuvenation of roots of old trees; (3) Rootstock cutting and germination cultivation; (4) Scion treatment; (5) Grafting method; (6) Rootstock management after grafting; (7) Branch management and scion management and protection. The method of the present invention utilizes old litchi orchards to construct a litchi ear-picking nursery for fine varieties. The operation is simple and the survival rate is high. Through the well-developed root system of the old litchi tree and sufficient nutrients in the tree body, the scion of the good variety can grow rapidly, and can enter the scion after three years of grafting. In the high-yield period, a large number of scions of good varieties can be quickly produced to meet the demand of the litchi industry for scions of good varieties, and it can also realize the renewal and reuse of resources in old litchi orchards that have lost control.

Description

technical field [0001] The invention relates to the technical field of fruit tree breeding, in particular to a method for constructing a fringe-picking nursery for improved litchi species by using old litchi orchards. Background technique [0002] my country's lychee industry grew rapidly in the 1980s and 1990s, and the cultivation area reached more than 500,000 hectares. Among the main varieties are "black leaf", "feizixiao", "huaizhi", "guiwei", "white sugar poppy" or The sum of the output of "Bai La" exceeds 75% of the total output of its area every year. Due to the high production concentration of varieties and the unreasonable structure of varieties, the market concentration is concentrated in the listing period and the market supply pressure is high in stages. In addition, most of these varieties The quality of the variety is mediocre, which makes it difficult to sell lychees, increasing production without increasing income, and low fruit prices hurting farmers. Therefor...

AI Technical Summary

Problems solved by technology

[0003] Up to now, many litchi orchards in my country’s traditional litchi producing areas are over 20 years old. The trees are tall and shaded, the branches are weak, the yield is low, it is difficult to harvest fruit, the production efficiency has dropped significantly, and the enthusiasm of fruit farmers has been frustrated. The phenomenon of abandoned pipes is becoming more and more serious. If the tree body is not renewed and reused, it will cause a great waste of resources