Preparation for preventing crops from frost damage

Abstract

The invention provides a preparation for preventing crops from frost damage. The preparation comprises the following components in parts by weight: 2-5 parts of paraffin, 5-8 parts of edible oil, 4-8 parts of isobutene, 3-9 parts of fulvic acid, 5-9 parts of heteroauxin, 2-6 parts of allium sativum oil, 2-5 parts of monobasic organic acid, and 2-5 parts of a cooking liquor of szechuan lovage rhizome, fructus evodiae, dry eggplant stems and rhizoma zingiberis, wherein the ion content of Cu, Fe, Mn, Zn and B in the preparation is greater than or equal to 95 g/L. The preparation provided by the invention is simple in ratio and convenient to use, can greatly reduce frost damage to trees, is good in freeze-proof effect, can activate a biological enzyme, prevents the generation of an ice nucleating bacteria, destroys ice generation activity of frozen protein by increasing heat quantity, reduces a freezing point of a plant cell, accelerates the flow of cellular plasm, improves the activity of the cell by 4-8 times, increases the water-holding and drought-resisting capacity of plants, reduces frost damage, can alleviate and cure moderate and light frost damage to the plants, is ineffective on heavy frost damage, and reduces the freezing point value of the plants by 5-8 DEG C.

Description

[0001] Technical field: [0002] The invention relates to the technical field of forest protection, in particular to a preparation for preventing freezing damage of crops. [0003] Background technique: [0004] In northern China, severe cold, dry and windy winter will cause some less cold-resistant tree species to suffer from freezing damage or cause "physiological drought" (also called freezing drought, cold drought or winter drought) in winter to early spring, causing local branches to wither. In some cases, some branches will be damaged, and in severe cases, the whole plant will die. In order for trees to survive the winter safely, it is necessary to understand the causes of low temperature damage and take necessary measures. For example, root freeze damage has poor frost resistance because the root system has no natural dormancy. Roots close to the surface are susceptible to freezing damage, especially in dry sandy land with little snow in winter, and are more suscep...

AI Technical Summary

Problems solved by technology

However, this method is not suitable for colder areas. In colder areas, most of them use tree trunks to wrap straw curtains, and then wrap plastic cloth outside the straw curtains to prevent freezing.

The operation is cumbersome, the labor intensity is high, and it needs to be disassembled ag