Chemical flower and fruit thinning method for apple trees

Abstract

The invention discloses a chemical flower and fruit thinning method for apple trees. The method mainly comprises the following steps of (1) preparation of flower and fruit thinning pesticide; (2) selection of proper periods, wherein the apple trees are subjected to flower and fruit thinning and agent spraying; (3) manual fruit setting. According to the chemical flower and fruit thinning method, achemical method is adopted for flower and fruit thinning, and the method is safe for fruits, people, livestock and flower-visiting insects and safe for the environment and ecology. The flower and fruit thinning agent is used for flower and fruit thinning, ray flowers are removed at the full-bloom stage of apples, and fruit setting of center flowers is guaranteed; ray fruits are removed at the young fruit stage of the apples, center fruits are kept, excessive fruit setting is avoided, and the fruit setting rate is effectively lowered; nutrient loss is reduced, the task quantity of manual fruitsetting is reduced, in this way, the requirement of growth and development of trees can be met, the yield can be increased, the quality can be improved, the biennial bearing phenomenon can be prevented, the labor cost can also be lowered, and the economic benefit can be increased.

Description

technical field [0001] The invention relates to the technical field of fruit tree planting, in particular to a method for chemically thinning flowers and fruits of apples. Background technique [0002] Since the successful introduction and demonstration of apple dwarf self-root stock M9-T337, commercial production has initially formed in some provinces and cities across the country. Jiangsu Province is an old production area of ​​Fuji apple, with a long history of cultivation, and the main variety is Fuji apple. Fuji apple is a late-maturing apple variety, with medium tree vigor, more flowering, less early and late fruit drop, good yield, more fruit juice, and good flavor; but apple trees generally bloom excessively under natural conditions, making the tree The body consumes too much nutrients, resulting in serious large and small annual results. In recent years, Fuji apples have blindly pursued the expansion of production scale. The amount of flowers in the blooming perio...

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Problems solved by technology

[0003] At present, related chemical flower thinning and fruit thinning agents have appeared on the Chinese market, with relatively few formulas, and most of them are compound reagents, which are inconvenient for fruit farmers to prepare.

Because the application effect of apple flower and fruit thinning agent is affected by factors such as apple variety, tree body and tree vigor, cultiv

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