Stevia seedling anti-freezing growth promoting agent

Abstract

The present invention provides a stevia seedling anti-freezing growth promoting agent, which comprises, by weight, 0.5-1.5 parts of compound sodium nitrophenolate, 0.2-0.8 part of sodium naphthylacetate, 2-4 parts of alginic acid, 10-15 parts of urea, 3-6 parts of potassium dihydrogen phosphate, 3-5 parts of polyglutamic acid, 1-2 parts of calcium amino acid chelate, 5-7 parts of glycerin, 8-10 parts of ethanol, 2-4 parts of tween, 4-6 parts of hydroxymethyl cellulose, and 1000 parts of water, wherein various components are dissolved and mixed to obtain the stevia seedling anti-freezing growth promoting agent. According to the present invention, the stevia seedling anti-freezing growth promoting agent can form the anti-freezing protection film on the surface of stevia so as to effectively protect the cold resistance of the stevia and enhance the cold resistance of the stevia; and the substance for promoting the stevia seedling root growth and the fertilizer are added so as to promote the rapid growth of the stevia seedling, the stevia seedling anti-freezing growth promoting agent can be directly sprayed on the plant foliage, and the use method is simple.

Description

technical field [0001] The invention relates to the technical field of stevia rebaudiana planting, in particular to a stevia seedling antifreeze growth-promoting agent. Background technique [0002] Stevia is a perennial herb of the genus Stevia in the Asteraceae family. The whole Stevia plant contains sugar, and the sweetness of the leaves is the highest, containing about 14% glycosides. The glycosides of the branches are equivalent to half of the leaves. Stevia leaves can be used as sugar after drying and crushing, or through ethanol precipitation Obtain stevioside, the sweetness is equivalent to 250-300 times that of white sugar, and the calories are only 1 / 300 of white sugar. Not only that, stevioside has no toxic side effects, no carcinogens, safe to eat, regular consumption can prevent high blood pressure , diabetes, obesity, heart disease, dental caries and other diseases, it is an ideal sweetener to replace sucrose. At present, it has been widely used in food, beve...

AI Technical Summary

Problems solved by technology

[0003] Stevia is a temperature-loving plant, and cuttings are often used to raise seedlings. The living stevia seedlings have poor cold resistance and need to be carefully cared for. When the temperature is below 20°C, they need to be covered with a film to keep them warm. Temperature removes the shed film. If the outside temperature is too low, the shed film cannot be removed. Moreover, if it encounters rejuvenation after the film is removed, it will be easily damaged by freezing, which will affect its survival rate and affect the economic benefits of stevia.

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