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Application of chitosan oligosaccharide and composition thereof in resisting salinity for crops

A composition and technology of chitosan oligosaccharide, applied in the agricultural field, can solve the problems of agricultural safety production threat, aggravated soil salinization, restricting the sustainable development of agriculture, etc., and achieve the effect of protecting normal growth and development and improving the effect

Active Publication Date: 2013-11-20
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Affected by climate and human factors, secondary salinization has occurred in a large number of cultivated lands, and soil salinization has continued to intensify, restricting the sustainable development of agriculture and posing a great threat to agricultural production safety

Method used

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  • Application of chitosan oligosaccharide and composition thereof in resisting salinity for crops
  • Application of chitosan oligosaccharide and composition thereof in resisting salinity for crops
  • Application of chitosan oligosaccharide and composition thereof in resisting salinity for crops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The salt stress experiment of embodiment 1 crop

[0029] In the same area, the effect of the composition containing oligochitosan on corn, rice, wheat, sorghum and soybean against salt disaster was tested with multiple plots. The area of ​​each plot is 50 square meters, and the composition that comprises chitosan oligosaccharide is chitosan oligosaccharide water, and application method is spray method, and the control group is clear water spraying, and the liquid amount of clear water spraying and the spray of chitosan oligosaccharide water The dosage is the same. The concentration of salt treatment (including sodium chloride, sodium sulfate, etc.) in the crop field is pretreated in advance to adjust the weight content of the total salt in the total weight of the soil, and the unit of the concentration of the total salt is g / Kg. The conditions of clear water treatment and chitosan oligosaccharide solution treatment are the same, the only difference is whether to use ch...

Embodiment 2

[0046] The acid and alkali stress resistance experiment of embodiment 2 crops

[0047] In the same field, the effect of the composition comprising oligochitosan on the acid-base stress of crops was tested with multiple plots. The area of ​​each plot is 50 square meters, and the composition that comprises chitosan oligosaccharide is chitosan oligosaccharide water, and application method is spray method, and the control group is clear water spraying, and the liquid amount of clear water spraying and the spray of chitosan oligosaccharide water The dosage is the same. The acid-base conditions in the crop growth environment are marked by measuring the pH of the soil.

[0048] The proportion of wilting plants refers to the percentage of plants with drooping leaves to the total number of plants.

[0049] The concentration adjustment and application method of chitosan oligosaccharide are the same as in Example 1.

[0050] Specific experimental conditions and experimental results su...

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Abstract

The invention relates to an application of chitosan oligosaccharide and a composition thereof in resisting salinity for crops, and particularly provides a farm chemical composition for crops to resist saline-alkali-acid stress. The farm chemical composition contains the chitosan oligosaccharide, and the weight percentage of the chitosan oligosaccharide in the farm chemical composition is 0.011 to 0.024 percent or 0.005 to 0.019 percent. The farm chemical composition can alleviate the diseases of the crops caused by saline, alkali and acid. The chitosan oligosaccharide with a particular concentration has a positive adjusting action on the growth of the crops under the saline-alkali-acid condition so as to protect the normal growing development of the crops.

Description

technical field [0001] The invention relates to the field of agriculture, and more specifically relates to the application of chitosan oligosaccharides in food crops, vegetables, fruit trees and other crops resisting salt stress. Background technique [0002] Soil salinization is a worldwide problem. my country's salinized soil is mainly distributed in the northwest, north, northeast inland and coastal coastal areas. Affected by climate and human factors, secondary salinization has occurred in a large number of cultivated lands, and soil salinization has continued to intensify, which restricts the sustainable development of agriculture and poses a great threat to agricultural production safety. Therefore, it is an inevitable trend of agricultural production in saline-alkali land to fully develop and utilize saline-alkali land resources and plant salt-tolerant crops with high economic value. Cotton, as the main economic crop in saline soil areas, has strong salt tolerance, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/16A01P21/00A01G7/06
Inventor 张善学陆红霞董智荣陈丁丁王会民侯华民
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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