Key words of the passage: brown algae polyphenol; benefits; use; plant

In recent years, the damage caused by the blind and excessive application of chemical fertilizers and pesticides has become more and more serious.To develop ecological agriculture, we must vigorously promote the use of biological fertilizers and pesticides. The abundant marine biological resources are a material treasure house for the development of ecological agriculture.

Seaweed extract is one of the algae products from marine biological resources. It refers to seaweed extract powder/flakes, alginate oligosaccharide, seaweed extract liquid. They have many functions when applied to agricultural plants, including anti-oxidation and coordination of rapid distribution in plants, improve plant nutrient absorption, etc. Since the implementation of the green development requirements of agriculture and the implementation of the food security strategy, seaweed extract fertilizer series products have been increasingly favored by fertilizer companies and growers.

What’s brown algae polyphenol?

Brown algae polyphenols are also called seaweed polyphenols, which are a natural phenolic compound extracted from seaweeds and are derivatives of phloroglucinol. They contain trace elements and polysaccharides, salicylic acid, salicylic acid, sour, jasmonic acid, etc. They have functions such as anti-oxidation, anti-bacterial, and stress resistance. They can effectively open up the transportation channel of plant nutrients in the body, improve plant resistance such as cold resistance and waterlogging resistance of crops, and improve the overall nutrient transport capacity of plants. Brown algae polyphenols have obvious inhibitory effects on a variety of bacteria, fungi, yeasts, and have strong inhibitory effects on common pathogenic bacteria such as cholera, Staphylococcus aureus, Escherichia coli, etc., Moreover, they have no effect on the corresponding inhibitory concentration. The polyphenol compounds in seaweeds are the main means and material basis for the prevention of pathogen invasion in the initial stage of seaweed diseases.

What are the benefits of brown algae polyphenols for plants?

• Natural active substances stimulants: They are rich in polyphenols and polysaccharides, trace elements such as iron, manganese, copper, molybdenum, boron, magnesium and natural substances such as salicylic acid and jasmonic acid are contained too, which can effectively stimulate the production of non-specific active factors in plants and regulate the balance of endogenous hormones.

• Brown algae polyphenols have obvious inhibitory effects on a variety of bacteria, fungus, yeasts, and on common pathogenic bacteria such as cholera, Staphylococcus aureus, E. coli.

• Improves the activity of antioxidant enzymes in crops and reduce the damage of superoxide free radicals to crops under adversity. Increase the thickness of crop fence tissue and sponge tissue, improve crop resistance to cold, and reduce the photoinhibition damage to leaves caused by low temperature.

What is the application of brown algae polyphenol?

We conducted numerous experiments of brown algae polyphenol application on fruits and crops on our demonstration field, among of which is brown algae polyphenols in tea plant. The result shows its yield increased under the press of frost condition. The budding was increased by 26% compared with the control, and the budder density increased by 38% compared with the control.

And the results of a large number of compounding experiments of brown algae polyphenols with other agrochemicals has approved brown algae polyphenols for compounding with specific amino acids, humic acid, macro, medium and trace elements and other agrochemicals to make preparation products. And brown algae polyphenol can be used to produce irrigation or foliar fertilizer with your own formulation.

Source: AgroPages