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Chitosan oligosaccharide composition for resisting wheat scab and application and method of chitosan oligosaccharide composition

A technology for wheat scab and chitosan oligosaccharides, applied in the field of agricultural chemistry, can solve the problems of large dosage, sustainable development and utilization of ecological environment protection resources, etc., and achieve the effect of improving the effect

Active Publication Date: 2012-04-11
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Application Information

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Problems solved by technology

[0003] Due to the long-term use of chemical pesticides, the resistance of diseases and insect pests is getting stronger and stronger, and the amount of traditional pesticides is increasing, which has a relatively large negative impact on the protection of the ecological environment and the sustainable development and utilization of resources.

Method used

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  • Chitosan oligosaccharide composition for resisting wheat scab and application and method of chitosan oligosaccharide composition
  • Chitosan oligosaccharide composition for resisting wheat scab and application and method of chitosan oligosaccharide composition
  • Chitosan oligosaccharide composition for resisting wheat scab and application and method of chitosan oligosaccharide composition

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Embodiment 1

[0026] The 5wt% chitosan oligosaccharide solution is diluted with water to the corresponding application concentration respectively, and the concentration is calculated according to the weight percent concentration, and is calculated in ppm (parts per million) concentration in the result record, and 50ppm represents the weight percent in the result record below The concentration is 0.005%. Water treatment was used as a control. The diluted solution is used to treat wheat seeds and wheat plants in stages according to requirements, and the seed treatment is seed soaking, and the soaking time is 24 hours. The treatment mode of other stages is spraying treatment of chitosan oligosaccharide aqueous solution, and the interval time of spraying treatment is 15 days. Each treatment is observed and detected through 3 test fields (667 square meters). The samples of the treated seeds are counted when the crops germinate and grow into 6 leaves. The statistics of the treatments at each sta...

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Abstract

The invention relates to a chitosan oligosaccharide composition for resisting wheat scab and application and a method of the chitosan oligosaccharide composition, in particular to a pesticide composition for resisting wheat scab. The pesticide composition contains chitosan oligosaccharide, and the chitosan oligosaccharide accounts for 0.003 to 0.028 percent of the weight of the pesticide composition. The invention also provides the application of the pesticide composition which contains the chitosan oligosaccharide and is used for preventing and controlling the wheat scab. The application is characterized in that: the chitosan oligosaccharide in the pesticide composition containing the chitosan oligosaccharide is 0.003 to 0.028 weight percent. The composition solves the important problem of resisting the wheat scab; and particularly, after being treated by using the pesticide composition containing the chitosan oligosaccharide, seeds and plants of wheat resist wheat scab, do not produce pesticide damage to crops, and have no pesticide residue.

Description

technical field [0001] The invention belongs to the field of agricultural chemistry, and in particular relates to a control composition and a control method for wheat scab, in particular to a chitosan oligosaccharide composition for resisting wheat scab and its use and method. Background technique [0002] Wheat head blight is a worldwide epidemic disease caused by Fusarium fungi, and it is also a major disease in wheat production in my country. Its distribution and damage are different in different countries and regions. In my country, the winter wheat area in the middle and lower reaches of the Yangtze River and the spring wheat area in Northeast China are particularly affected by it, resulting in loss of yield and decline in quality. At present, no breakthrough has been made in breeding disease-resistant varieties, and conventional breeding is difficult. In addition, because the occurrence and prevalence of scab are greatly affected by the climate, the number of rainy da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01P3/00
Inventor 张善学陆红霞张余胜陈丁丁肖斌杜丽芬徐俊光
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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