Preparation method of orange fruit thinning agent

Abstract

The invention discloses a preparation method of an orange fruit thinning agent. The method comprises: preparation of oligochitosan and preparation of a fruit thinning agent. The specific steps include: firstly subjecting chitosan and deionized water to mixed reaction, then adding hydrogen peroxide, conducting ethanol precipitation and ethanol washing to obtain oligochitosan, adding naphthylaceticacid powder, dinitrocresol, 1-aminocyclopropanehydroxyl acid, branched secondary alcohol polyoxyethylene ether, trichlorfon, naphthylacetic acid, 6-benzyladenine, and a blending agent to obtain a fruit thinning agent stock solution, and conducting dilution to obtain the orange fruit thinning agent. The invention has the beneficial effects that: after spraying the fruit thinning agent to orange branches, a layer of fruit thinning agent film can be formed on the orange branches, the film can effectively inhibit the transpiration of branches and reduce the water loss of branches, the orange fruitthinning agent has powerful blossom and fruit thinning effects, has an insecticidal function at the same time of blossom and fruit thinning, in addition, the fruit thinning agent also can increase the single fruit weight, enhance the fruit shape index, increase the flower quantity of next year, and reduce fruit rust, and also has no influence on the orange storage quality.

Description

technical field [0001] The invention relates to the field of orange planting, in particular to a preparation method of an orange fruit thinner. technical background [0002] Flower thinning and fruit thinning is an essential cultivation technique measure in the production of fine fruit. Its main purpose is to improve fruit quality, reduce tree damage, reduce nutrient consumption, and improve tree resistance by preventing excessive fruiting. For some tree species or varieties, it can also effectively prevent the number of flower bud differentiation or non-differentiation flower buds caused by excessive fruiting, improve the quality of flower bud differentiation, thereby reducing or overcoming the size of the year. The main methods of flower and fruit thinning include artificial flower and fruit thinning, mechanical flower and fruit thinning and chemical flower and fruit thinning. Artificial flower and fruit thinning method is simple and effective, and is currently the most w...

AI Technical Summary

Problems solved by technology

Artificial flower and fruit thinning method is simple and effective, and is currently the most widely used flower and fruit thinning method, but this method is time-consuming and labor-intensive; mechanical flower and fruit thinning can improve work efficiency, but this method has been in the experimental state. Currently difficult to use in production