阅读说明：本技术 一种增强玉米抗旱性的复合剂及其制备方法 (Complexing agent for enhancing drought resistance of corn and preparation method thereof ) 是由 庄克章 于 2020-08-03 设计创作，主要内容包括：本发明提供一种增强玉米抗旱性的复合剂及其制备方法,由按照重量份计的以下组分组成：腐胺7-280份,亚精胺0.4-10份,精胺0.8-16份,丁二酸1-15份,甲壳素6-150份,将称取的各组分溶于50000份-150000份水中,即可制得复合剂。相对于现有技术,本发明突破了以前常用的喷施剂成分,在提高玉米抗旱性的同时,根据在农业上应用的浓度,多胺为植物所吸收,对土地无残留,而且,被植物吸收的多胺,即使进入人畜体内,其浓度也远远低于人畜本身所合成的浓度,对人畜无害,且成本较低。(The invention provides a compound agent for enhancing drought resistance of corn and a preparation method thereof, wherein the compound agent comprises the following components in parts by weight: 7-280 parts of putrescine, 0.4-10 parts of spermidine, 0.8-16 parts of spermine, 1-15 parts of succinic acid and 6-150 parts of chitin, and the weighed components are dissolved in 50000-150000 parts of water to prepare the complexing agent. Compared with the prior art, the invention breaks through the components of the spraying agent commonly used in the past, improves the drought resistance of the corn, simultaneously, polyamines are absorbed by plants according to the concentration applied in agriculture, and have no residue on the land, and even if the polyamines absorbed by the plants enter human bodies and livestock bodies, the concentration of the polyamines absorbed by the plants is far lower than the concentration synthesized by the human bodies and the livestock bodies, and the polyamines are harmless to the human bodies and the livestock bodies and have lower cost.)

1. A compound agent for enhancing drought resistance of corn and a preparation method thereof are characterized in that: the composition comprises the following components in parts by weight: 7-280 parts of putrescine, 0.4-10 parts of spermidine, 0.8-16 parts of spermine, 1-15 parts of succinic acid and 6-150 parts of chitin.

2. The compound agent for enhancing the drought resistance of corn according to claim 1, wherein the compound agent comprises: 10-200 parts of putrescine, 0.5-6 parts of spermidine, 1-10 parts of spermine, 2-12 parts of succinic acid and 10-120 parts of chitin.

3. The use of the compound agent for enhancing drought resistance of corn according to claim 1, wherein the compound agent comprises: the corn seed is treated by seed dressing or seed soaking, or the complexing agent is applied in the seedling stage of the corn or the complexing agent is applied in the heading stage of the corn; or the complexing agent is sequentially applied to the corn seeds and the seedling stage, or the complexing agent is sequentially applied to the corn seeds and the heading stage, or the complexing agent is sequentially applied to the corn seedling stage and the heading stage, or the complexing agent is sequentially applied to the corn seeds, the seedling stage and the heading stage.

Technical Field

The invention belongs to the technical field of agricultural fertilizers, and particularly relates to a polyamine complexing agent for enhancing drought resistance of corn.

Background

Crops often suffer from drought throughout their growth period. In order to overcome such natural disasters, researchers often start with methods such as cultivation techniques, chemical regulation, breeding of new drought-resistant varieties and biotechnology, and improve the drought resistance of crops. In the chemical regulation, in recent years, scholars have tried to improve crop drought resistance with various plant growth regulators using laboratory research methods; in production practice, it is also widely used, for example: the formulas of the first-spraying three-proofing pesticide, the leaf surface fertilizer and the like all contain plant growth regulating substances such as agricultural abscisic acid, paclobutrazol and the like with different concentrations.

Corn and maize are important grain crops in China, and are often subjected to drought natural disasters in seedling stage and heading and filling stage, and scholars try to enhance the drought resistance by using different plant growth regulating substances. The existing main exogenous substances for enhancing the drought resistance of the corns and the corns are as follows: growth retardants such as chlormequat chloride, paclobutrazol, abscisic acid, and the like; antitranspirants such as long chain alcohols and low viscosity silicones; reflexers, such as kaolin; stomatal opening inhibitors such as phenylmercuric acetic acid and methyl nonenylsuccinate. The exogenous substances and other components are mixed to form the main component of the spraying agent commonly used in the practice of agricultural production at present, and the regulating substances for industrial production in the agricultural industry make a contribution to improving the drought resistance and the yield of the corns and the corns.

The polyamines are secondary metabolites produced by plants discovered in recent years, common polyamines comprise putrescine, spermine and spermidine, and in recent years, with the deep research of scholars, the polyamines have important significance for improving the drought resistance of crops. However, in the exogenous materials for improving the drought resistance of the corn and the corn, polyamine components are lacked, so that the effect of the existing external spraying technology has certain limitation, and the improvement of the drought resistance and the yield of the corn is limited to a certain extent.

Disclosure of Invention

In order to solve the problems, the invention provides a complexing agent for enhancing the drought resistance of corn and a preparation method thereof.

The object of the invention is achieved in the following way:

a compound agent for enhancing drought resistance of corn and a preparation method thereof are disclosed, which comprises the following components in parts by weight: 7-280 parts of putrescine, 0.4-10 parts of spermidine, 0.8-16 parts of spermine, 1-15 parts of succinic acid and 6-150 parts of chitin.

10-200 parts of putrescine, 0.5-6 parts of spermidine, 1-10 parts of spermine, 2-12 parts of succinic acid and 10-120 parts of chitin.

The method is characterized in that the compound agent is applied to one stage or at least two stages of corn development to treat crops, and comprises the steps of dressing seeds or soaking seeds of corn, or applying the compound agent to the seedling stage of the corn, or applying the compound agent to the heading stage of the corn, or applying the compound agent to the corn seeds and the seedling stage in sequence, or applying the compound agent to the corn seeds and the heading stage in sequence, or applying the polyamine compound agent to the seedling stage and the heading stage of the corn in sequence, or applying the compound agent to the corn seeds, the seedling stage and the heading stage in sequence.

Compared with the prior art, the invention breaks through the components of the spraying agent commonly used before, mainly uses three polyamine components discovered and researched in recent years, and is matched with other two components to form the compound agent for improving the drought resistance of the corn. The polyamine is absorbed by plants according to the concentration applied in agriculture while the drought resistance of the corn is improved, no residue is left on the land, and the concentration of the polyamine absorbed by the plants is far lower than the concentration synthesized by human and livestock even if the polyamine enters the bodies of the human and livestock, so that the polyamine is externally applied to the corn, is harmless to the human and livestock, and has lower cost.

Detailed Description