Mechanism of action of Bacillus megaterium
1.Bacillus megaterium can produce a large amount of organic acid in the process of growth and reproduction, which can decompose or dissolve the insoluble phosphorus-containing substances in the soil and transform them into phosphorus elements that can be easily absorbed by plants, improving the utilization rate of phosphorus elements.
2.A protein secreted by Bacillus megaterium has a strong antagonistic effect on a variety of crop harmful fungi.
3. Bacillus megaterium can rapidly multiply in the soil and become a dominant colony, controlling the nutrients and other resources of the root system, resulting in a considerable loss of space and conditions for the pathogenic bacteria to survive; thickening, fibrillating and lignifying the cell walls of the relevant plant tissues, and forming a keratinous double silica layer outside the epidermis, forming a barrier to prevent the attack of the pathogen.
Bacillus megaterium functional characteristics
1. Strong phosphorus solubilisation, the alkaline or acid phosphatase and dehydrogenase produced by Bacillus megaterium during metabolism mineralise organic phosphate and make it soluble phosphorus that can be absorbed and used by plants; in addition, Bacillus megaterium can secrete organic acids such as lactic acid, amino acid and citric acid during metabolism, directly solubilising insoluble phosphate in the soil and releasing phosphorus and iron, aluminium, calcium and other medium trace elements.
2. Broad-spectrum anti-bacterial effect, Bacillus megaterium can produce anti-bacterial substances such as iturin during metabolism, which has a preventive effect on bacterial and fungal diseases of different plants.
3. Significant growth promoting effect, Bacillus megaterium can produce a variety of plant hormones (indoleacetic acid, cytokinin, etc.), acidic substances, biological enzymes and vitamins and other physiologically active substances during the metabolism process, stimulating and regulating plant growth.
4. degradation, Bacillus megaterium can produce nitrite reductase, has a strong degradation capacity of nitrite in the water body; reproduction speed, strong enzyme production capacity, can effectively remove organic matter, nitrogen, phosphorus in the water body, control the growth of algae, play a role in the purification of eutrophic water bodies.
Main functions
1. Improve soil fertility, it can decompose the insoluble phosphorus and potassium in the soil and transform them into phosphorus and potassium compounds that can be absorbed by crops, so that the supply of nutrient elements in the soil can be increased.
2. Improve fertilizer utilization rate, promote plant absorption of nutrients, improve fertilizer efficiency, its metabolism produces polyglutamine acid has a strong water and fertilizer retention capacity.
3. Preventing and controlling plant diseases, it has a strong inhibiting effect on cotton blight, wheat blight, total erosion, Pseudomonas aeruginosa, wilt, yellow wilt, white leaf blight and Fusarium rhizogenes.
4. Use on tobacco leaves to improve the fermentation and aroma of tobacco leaves with unique effect.
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