Preparation method of preparation for improving cold resistance of crops

Abstract

The invention provides a preparation method of a preparation for improving the cold resistance of crops. The preparation method comprises the following steps: (A) uniformly mixing and stirring glycerin, salicylic acid, a coupling agent and amino acid, adding acetic acid and liquid paraffin into the mixture, uniformly stirring, and standing; (B) putting bamboo leaves, ochre, herba elsholtziae and pine needle into a closed container, adding 75wt% ethanol solution to soak each active component for 12 hours, adding active components into a percolater, adding 75wt% ethanol into the percolater, collecting percolate, heating the 75wt% ethanol collected percolate to recycle ethanol, so as to obtain an extract; dissolving the extract into vegetable oil, heating the vegetable oil dissolved with medicines to 40-50 DEG C, and carrying out sterilization; and (C) after adequately mixing the substance obtained in the step (A) with the substance obtained in the step (B), and examining the ion content to enable the total content of Cu, Fe, Mn, Zn and B to be more than or equal to 100g / L. The preparation is simple in proportion, good in anti-freezing effect, convenient to use and capable of substantially increasing loss caused by freeze injury of trees.

Description

[0001] Technical field: [0002] The invention relates to the technical field of forest protection, in particular to a preparation method for improving the cold resistance of crops. [0003] Background technique: [0004] The frost damage of crops, such as tree freeze damage, mainly occurs on the inward side of the branch. Symptoms are cortical discoloration, necrotic depression, or vertical cracking along the main trunk. Due to the narrow annual rings at the branches, underdeveloped ducts, poor support, low nutrient accumulation, poor cold resistance and other reasons, the ducts rupture, resulting in gum flow in the next spring. At the same time, because snow is easy to accumulate at the branches, the bark will be soaked to make the tissue soft after the snow melts, and it will be damaged if the temperature drops suddenly. [0005] In the traditional prevention and control of tree frost damage, lime and lime sulfur are used to whiten the branches and trunks, which can re...

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 again next spring, resulting in a serious waste of resources. In view of this technical problem, it is necessary to have a simple proportioning, easy to use, which can greatly reduce the loss of tree frost damage and antifreeze effect. A good preparation method for improving cold resistance of crops