Single or compound oligochitosan preparation and application of single or compound oligochitosan preparation in tomato virus disease control

A technology of chitosan oligosaccharides and preparations, which is applied in the agricultural field, can solve the problems of difficult virus diseases, etc., and achieve the effects of enriching sources, improving quality, and promoting growth

Inactive Publication Date: 2016-04-06
TANGSHAN JINTU MICROBIAL ORGANIC FERTILIZER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to effectively control the harm of viral diseases in the pro

Method used

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  • Single or compound oligochitosan preparation and application of single or compound oligochitosan preparation in tomato virus disease control
  • Single or compound oligochitosan preparation and application of single or compound oligochitosan preparation in tomato virus disease control

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Embodiment Construction

[0028] Those skilled in the art can refer to the content of this article to appropriately improve the process parameters to achieve. In particular, it should be pointed out that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention.

[0029] The experimental methods in the following examples are conventional methods unless otherwise specified. Chitosan: the degree of deacetylation is 92%, in powder form, purchased from Sinopharm Group. Oligochitosan standard sample [(GlcN)2-(GlcN)6]: Dalian Zhongke Geleike Biotechnology Co., Ltd.

[0030] In order to further understand the present invention, the present invention will be described in detail below in conjunction with examples.

[0031] A kind of chitosan oligosaccharide preparation, described chitosan oligosaccharide is to make through enzymolysis of chitosanase, the degree of polymerization of this chitosan oligosaccharide is

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Abstract

The invention relates to the technical field of pesticides, in particular to a single or compound oligochitosan preparation and an application of the single or compound oligochitosan preparation in tomato virus disease control. Tomato virus diseases are controlled by separately applying an aqueous oligochitosan solution or adding one or more of biocontrol bacteria and/or organic fertilizer, inorganic fertilizer and inorganic compound fertilizer to oligochitosan, and the problems of low virus control rate, disease relapse and pesticide residue existence of a conventional chemical pesticide for controlling the tomato virus diseases are solved. The required oligochitosan has an abundant source, has the characteristics of microscale, high efficiency, low cost and avoidance of environment pollution in agriculture, is different from a traditional biological pesticide and chemical pesticide in the aspect of plant regulation and control effect, can promote crop growth, improve crop quality and induce plant disease resistance, produces immunizing and killing functions on multiple fungi, bacteria and viruses, and is very suitable for industrial mass production.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a single or compound chitosan oligosaccharide preparation and its application in preventing and treating tomato virus diseases. Background technique [0002] The proportion of plant virus diseases in plant diseases is second only to fungal diseases. With the development of facility agriculture, the harm of virus diseases on economic crops is becoming more and more serious. The general incidence of tomato virus disease is 10%-30%, and the serious one is 50%-70%. The yield loss is large, which poses a serious threat to tomato production. Tomato virus disease is caused by tobacco mosaic virus, cucumber mosaic virus, alfalfa mosaic virus or other viruses. It is one of the important diseases of tomato. The disease symptoms are mainly mosaic, fern leaf and stripe , tufted, curly-leaved and yellow-topped. In recent years, due to the expansion of off-season vegetable cultivatio...

Claims

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Application Information

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IPC IPC(8): A01N43/16A01N63/00A01P1/00C05G3/00C12P19/26C12P19/14
CPCA01N43/16A01N63/00C05G3/00C12P19/14C12P19/26
Inventor 闫艳华王洪英姚彦坡刘明王素华张树明王岩
Owner TANGSHAN JINTU MICROBIAL ORGANIC FERTILIZER
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