Potassium-rich nutrition agent used for fresh-keeping and growth promotion of fruits and vegetables and application of agent

Abstract

The invention discloses a potassium-rich nutrition agent used for fresh-keeping and growth promotion of fruits and vegetables and an application of the agent, and belongs to the technical field of fresh-keeping technology. This potassium-rich nutrition agent is prepared from the following raw materials in parts by weight: 95-100 parts of potassium sulfate and 0.5-5.0 parts of polysaccharides, wherein the polysaccharides include chitosan or lentinan. The potassium-rich nutrition agent can effectively improve the content of medium trace mineral nutrient elements such as Ca, Mn and Zn in fruits,and can prolong the shelf life of fruits and vegetables. The invention also discloses the application of the potassium-rich nutrition agent in the fresh-keeping of fruits and vegetables such as strawberries or lettuce, and the application method is as follows: diluting the potassium-rich nutrition agent with water 800-1200 times by weight of the agent so as to obtain a water solution, and sprayingthe solution onto leaf surfaces and / or fruits 5-7 days before the fruits are mature or picked or 20-25 days before vegetables are mature or picked, wherein the dosage of the water solution is 80-120kg / mu. The method is simple in operation, does not cause secondary damage to the fruits and vegetables during treatment process, and also has no residual harmful substances.

Description

technical field [0001] The invention belongs to the technical field of freshness preservation, and particularly relates to a potassium-enriched nutrient for promoting the growth and freshness of fruits and vegetables and its application, in particular to a potassium-enriched nutrient for growing strawberries or lettuce in a greenhouse; High-humidity conditions are prone to produce rotten bacterial diseases of vegetables or strawberry leaves and fruits, so the freshness preservation of fruits and vegetables is more difficult than that of ordinary fields. Background technique [0002] Strawberry is a berry fruit with bright red color, tender and juicy flesh, and 98% edible part. It can not only be eaten fresh, but also can be made into natural health drink, natural health preserved fruit and quick-frozen food, etc., which has broad market prospects. Strawberries not only have high edible value, but also have certain medicinal value, such as pharmacological effects such as prom...

AI Technical Summary

Problems solved by technology

However, the commonly used chemical preservatives for strawberries have the defects of polluting the environment and endangering human health, while other fresh-keeping techniques require expensive equipment and cumbersome operations. Therefore, it is urgent to find new economical, simple and acceptable strawberry fresh-keeping methods.

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