A kind of fruit preservative and method for delaying citrus fruit senescence and prolonging fruit-hanging fresh-keeping period

Abstract

The invention discloses a fruit preservation agent, which comprises fulvic acid, seaweed polysaccharide and water, the concentration of fulvic acid is 400-800ppm, and the concentration of seaweed polysaccharide is 200-600ppm. Also disclosed is a method for delaying citrus fruit senescence and prolonging the fruit-hanging fresh-keeping period. The citrus fruit is sprayed with the above-mentioned fruit fresh-keeping agent 20 to 40 days before the citrus fruit is ripe and picked. After spraying the hanging tree fruit with the fulvic acid / seaweed polysaccharide mixed preparation before picking, it not only delays the color change of the pericarp, delays the process of ripening and aging of the fruit, and plays a certain role in keeping fresh; , prolong the ripening and picking period of fruit, and alleviate the contradiction of fruit rot caused by centralized listing. Fulvic acid / seaweed polysaccharide is safe, non-toxic, almost natural, and harmless to the environment and soil.

Description

technical field [0001] The invention belongs to the field of agricultural technology, relates to fruit storage and fresh-keeping technology, in particular to a fruit fresh-keeping agent and a method for delaying citrus fruit aging and prolonging the fruit-hanging fresh-keeping period. Background technique [0002] The fruit harvesting of a certain fruit variety in a production area is often concentrated in the same time period. On the one hand, it makes the fruit growers have heavy harvesting work in a short period of time. Storage and transportation will cause a large amount of fruit accumulation, which is easy to rot. Spraying beneficial preparations on citrus fruit trees before fruit picking can not only prevent fruit drop and prolong the fruit-hanging time, but also change and delay the time and process of peel color change, thus playing a fresh-keeping role in delaying fruit aging. In the past, some fruit farmers used tree storage to keep some fruits fresh, that is, th...

AI Technical Summary

Problems solved by technology

In the past, some fruit farmers used tree storage to keep some fruits fresh, that is, they left the fruit on the tree and did not harvest it. The so-called "tree storage" not only sprayed pesticides on fruit trees more than once at different times, but also affected the harvest of the next year. Moreover, in order to prevent fruit drop, fruit trees are generally sprayed with hormonal agents. Excessive use of hormonal agents in the agricultural field will cause harm and pollution to the human body and the environment.

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