Agricultural chitosan oligosaccharides
Description:
Agricultural chitosan oligosaccharides, also known as amino-oligosaccharide (can be customized with 10%-30% aqueous amino-oligosaccharide).
Chitooligosaccharide is an oligosaccharide with polymerization degree lower than 20 obtained by biological enzyme degradation with abundant marine biological resources (shrimp and crab shells) as raw material, which is "positively charged natural oligosaccharide" in nature, also known as amino-oligosaccharide in agriculture, and a kind of bio-stimulant.
Specifications:
| Technical Indicators |
Specification |
| Exterior |
Light brown powder |
| Degree of deacetylation |
>80% |
| Viscosity (5%) |
<15cps |
| Molecular weight |
<5000 |
| Moisture |
<10% |
| Ash |
<5% |
| Lead |
<10ppm |
| Arsenic |
<2ppm |
Features of Amino-Oligosaccharides
Low dosage (use concentration of 50-100ppm)
Obvious effect (rapid stimulation of plant resistance)
Non-resistant (resists plant diseases by inducing plant resistance)
Good safety (from natural marine biological resources, non-toxic, no chemical residues) wide application (promote plant growth, disease resistance, dozens of food crops, cash crops, vegetables, a variety of diseases have inhibitory effect)
High efficiency with low dosage.
Raw powder grade chitosan, foliar spraying concentration of 50-100ppm, mu dosage of only 2-5 grams, 7 days interval, three times a better effect. Field experiments have shown that the general control effect of chitosan on pests and diseases is 40% to 80%, and improve crop yield by 10% to 20%. Stop in addition can also improve the plant's resistance function.
Growth promotion and disease prevention.
Agricultural chitosan not only has nutritional regulation efficacy, but also has good control effect on bacteria and viruses. It is widely used to prevent and control diseases such as leaflet disease, spot disease, charcoal pox, downy mildew, foliar disease, vine blight, rice blight, green blight and soft rot in fruit trees, vegetables and other crops.
After deacetylation, chitin becomes chitosan, which is a positively charged alkaline polysaccharide in nature, while chitooligosaccharide is a low molecular weight product of chitosan degradation.
Chitosan is widely adaptable to plants, has good affinity, is non-toxic, does not agglomerate in the soil, can slowly degrade into small molecule carbohydrates, is not harmful to the environment, and is an excellent pure natural agricultural ecological preparation.
Fertilizer made of chitosan as raw material can achieve good results in agriculture, and crops not only grow well, but also show obvious effects in resistance to adversity, pests and diseases.
Chitosan also has a greater significance for the improvement of crop quality and the enhancement of food nutritional value and economic value.
The anti-stress effect and induced resistance of chitosan are particularly prominent. When plants respond to the action of external biotic and abiotic factors, sugars originating from the cell wall stimulate the immune system response of plants.
Chitooligosaccharides stimulate defense enzymes and reactive oxygenase systems associated with disease-resistant metabolism to enhance active enzyme immunity. Among them, low concentrations induce resistance, medium concentrations induce disease resistance, and high concentrations inhibit growth.
Chitosan can reduce the use of chemical pesticides and delay the emergence of drug resistance. Widely used in agricultural production, it will definitely play its unique role for the sustainable development of China's agriculture and human life and health, and will not only bring certain economic benefits to agriculture, but also produce more far-reaching environmental and social benefits, with very good development prospects.
Application of chitosan in agriculture:
1. Seed treatment
Chitosan can induce plants to produce PR proteins and phytochemicals. Chitosan can be used to treat seeds of crops to improve germination rate and enhance disease resistance.
2. Improve resistance to stress
Chitosan over regulates the closing and opening of plant genes, induces plants to secrete resistance enzymes, promotes activation of plant cells, stimulates vegetative growth, and enhances self-protection against pests and diseases. Application of chitosan has good effects on crops' resistance to cold, high temperature, drought and flood, salinity, fertilizer damage, gas damage and nutrient imbalance.
3. New type of fertilizer
Chitosan can effectively promote the development of root system through foliar spraying, root irrigation and flushing, and create a good soil environment for the root system, which has good rooting, root nourishment and root preservation effects.
4. Inducing fungicide
Chitosan has a certain degree of direct inhibitory effect on a variety of plant pathogens. Therefore, chitosan can be used as an inducing fungicide to induce plant immune system and improve plant resistance to viruses. At present, domestic chitosan pesticide, through extensive field experiments and indoor verification of watermelon wilt, cotton yellow wilt, tomato late blight, tobacco virus, cucumber powdery mildew, lettuce standing blight, pepper blight, etc. have very good prevention effect.
5. Soil improvement
Chitosan can change the soil microbiota, promote the growth of beneficial microorganisms and inhibit some plant pathogens, release the fixed trace elements in the soil and improve the soil environment.
6. Preservation of fruits and vegetables
As a broad-spectrum fungicide, chitosan has bacteriostatic effect and has good film-forming property, which can achieve the purpose of freshness preservation by reducing the nutrient consumption inside the crop.
The main uses of agricultural grade chitosan.
1.Inducing disease resistance
Inducing disease-resistant factors in crops, effectively preventing viruses, fungi, bacteria and other pathogens from infesting
2. Inducing resistance to adversity
Improve the physiological function under adversity and reduce the harm of adversity
3.Promote growth
Promote carbon and nitrogen metabolism and chlorophyll synthesis
4.Improve quality
Increase chlorophyll content, increase vitamin C and total soluble sugar content, and reduce organic acid content
5.Improve storage resistance
Improve the epidermal tissue structure of agricultural products and preserve freshness.
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