Chitosan Oligosaccharide Agricultural Chitosan Powder Water Soluble

Chitosan Chitosan Oligosaccharide Agricultural Chitosan Powder Water Soluble Characteristic

General Information of Agricultural Chitosan

Agricultural Chitosan uses crab shells and shrimp skins as the basic raw materials, and is extracted to prepare chitosan, which is then degraded by biological enzyme technology. The degree of polymerization is between 2-20, and it is combined with β-1 and 4, with small molecular weight, good water solubility, high activity, and can be quickly absorbed by plants, and has a very unique biological function.

It is a low molecular weight product with good water solubility, great functional effects and high biological activity. It is fully soluble in water, easy to absorb and utilized by organisms, and its effect is 14 times that of chitosan.

It is stable, safe, non-toxic, non-stimulant and easily deliquesce.

Benefits of Agricultural Chitosan

Ten functions of chitosan oligosaccharides (also known as amino oligosaccharides) in agriculture

1. Improve crop disease resistance

Treating plants with chitin and its derivatives before the plants are infected can produce a sensitizing effect, and the treated plants can show a higher preventive effect than normal plants when they are infected by diseases and insect pests again. It can be toxic to certain fungi, bacteria, viruses and pests, and induce plants to activate their defense systems.

Chitosan oligosaccharide cannot directly inactivate viruses, but it has a significant inhibitory effect on the replication and long-distance movement of viruses in plants. Effects of plant viral diseases. Use before the outbreak of the virus can prevent the occurrence of viral diseases, can induce the resistance of plants to virus proliferation and long-distance movement in the body, and its inducing activity does not depend on the R gene of the host, and when used after the outbreak of the virus, can inhibit the spread of the virus to new leaves. . It has a broad-spectrum effect on fungi, and has different degrees of preventive effect on almost all fungal diseases, including powdery mildew, downy mildew, black mole, and blight, etc. It is mixed with targeted fungicides, such as enoyl Morpholine, flusilazole, pyraclostrobin, thifuramide, ethiolycin, tebuconazole, cyanobacteryl, etc., can achieve both internal and external considerations, and achieve the effect of reducing drugs and increasing efficacy.

2. Activation of the plant's own innate immune system

As a major component of the cell wall of fungal pathogens, chitin stimulates an immune response in plants. There are a variety of pattern recognition receptors on the cell membrane of plants, which trigger innate immune responses by recognizing some common and conserved molecular motifs (ie, pathogen-related molecular patterns) on pathogens. An important part of. Chitosan oligosaccharide can bind to receptors on plant cells, stimulate the production of resistance signal molecules, and through signal transduction, stimulate the expression of resistance genes and produce resistance substances, so as to achieve the purpose of disease control.

3. Improve crop stress resistance

For example, low temperature environment can easily lead to reduced fluidity and peroxidation of plant cell membranes, causing damage to plant cells. Chitosan oligosaccharide can increase the content of cold-resistant substances such as soluble protein and soluble sugar, reduce the level of membrane lipid peroxidation and increase membrane permeability. It can maintain the high photosynthetic intensity of crops and effectively resist the damage of low temperature to crops. Experiments have shown that chitosan oligosaccharide has a significant effect in inducing cold resistance in plants, and the effect is significant when used 1 to 7 days in advance. In addition, through the spinach test in a high temperature environment, the researchers found that the degree of damage to the spinach leaves was much lower than that of the control by spraying 500 times of 3% amino oligosaccharide, indicating that chitosan oligosaccharide is resistant to heat and heat resistance of plants. The ability effect is obvious. The heat-resistant properties of chitosan oligosaccharides make the use of chitosan oligosaccharides in high temperature seasons of great significance.

4. Improve rhizosphere microbial population and inhibit nematodes

5. Stimulates rooting of crops

After the chitosan oligosaccharide is absorbed by the plant, it induces the plant to produce auxins such as indole acetic acid and gibberellin, which stimulates the root development of the plant. Seed dressing with sugar-sugar water can stimulate early germination of crops. In the seedling stage of crops, there are many and long capillary roots. In the middle and late stages, potatoes have a strong absorbing root system, which can make better use of fertilizer and water, and become the basis for crops to resist drought and increase yield. 0.05~0.2% concentration of cotton seed coating treatment for 30min can stimulate seed germination, improve germination rate and increase the number of cotton bolls per plant.

6. Promote the early growth of plants

Because chitosan oligosaccharide treatment of plant seeds can promote uniform emergence, thick main stem, early ridge sealing, early growth of plants, shortened vegetative growth time, and can bloom 2 to 3 days earlier, laying a foundation for increasing production. The harvest period can also be 3 to 5 days earlier than the blank control. The test found that low concentration of chitosan oligosaccharide (optimal concentration 0.1mg·L-1) treated cucumber seeds and seedlings could promote the growth of cucumber seedlings. Compared with the control group, various growth indexes were significantly increased.

7. Increase crop yield and improve the quality of agricultural products

Because chitosan oligosaccharide stimulates the root system, promotes early growth, and improves the photosynthetic efficiency of leaves, especially under the condition of insufficient light in the greenhouse, the yield of plants is significantly increased. In the case of hail disaster, relevant experiments show that the control yield of Atlantic variety potato 15 days before harvest is 1951kg per mu, and 100ml of 3% amino oligosaccharin water spray can increase the yield by 334kg per mu, and the yield increase rate is 17.1%. Using a 150 ml spout can increase production by 21.6%. It shows that the chitosan oligosaccharide spray ditch promotes the early root system of the potato, the early growth of the plant, and the obvious increase in the later yield, and the larger the dosage, the more obvious the yield increase. At the same time, the uniformity is increased, which can improve the commodity rate of the first-grade potato chips.

After spraying chitosan oligosaccharide solution 3 times in the growing season, the quality of citrus has been greatly improved, which is mainly reflected in the increase of vitamin C content by 20%, the increase of soluble total sugar by 13%, the increase of soluble solid content by 6%, and the increase of solid-acid ratio. 52%, and citrus titratable acid content decreased by 21%. Similar results were obtained on grapes, watermelon, and tomatoes.

8. Degrade chemical pesticide residues in plants

Chitosan oligosaccharide can induce and improve the P450 enzyme activity in plant cells and degrade chemical pesticide residues in plants. The degradation effect of permethrin is remarkable, reaching 100%.

9. Safety and efficiency

Mixing with fungicides can greatly reduce the amount of fungicides, up to 90% of the amount of chemical pesticides, and has obvious effects on preventing crop diseases and improving yield. In addition, chitosan and its derivatives can be encapsulated with Trichoderma, Beauveria bassiana, Bacillus thuringiensis and other biological bacteria to make preparations, which is not only conducive to the storage and transportation of these microbial preparations (as carbon and nitrogen sources for microorganisms), can also promote their use.