Efficacy and function of bacillus subtilis in agriculture

Bacillus subtilis is a new microbial source. Bacillus subtilis has a good effect on controlling diseases of rice, wheat, peanut, tomato, pepper, soybean, corn and other crops, especially against powdery mildew, scab, sheath blight and other diseases of wheat, and the yield increase in the field is up to 10%-50%.

I. Characteristics of Bacillus subtilis

1, green environmental protection: non-toxic and harmless to people and animals, do not pollute the environment, safe for crops.

2, high efficiency and broad spectrum: can produce a variety of antibiotics and enzymes, with a broad spectrum of antibacterial activity and strong resistance to adversity.

3. Increase production and improve quality: Bacillus subtilis can also secrete active substances that promote crop growth, make plant leaves thick and green, improve crop immunity, increase production and improve quality significantly, and produce a variety of amino acids in the fermentation process, which has a role in regulating crop growth.

Second, the role of Bacillus subtilis

1. Improve crop resistance to disease, cold and drought.

2. Increase soil nutrients, improve soil structure and improve fertilizer utilization rate.

3, promote the decomposition of organic matter in the soil into humus, stimulate crop growth.

4, promote crop growth, maturity, reduce costs, increase production, increase income.

5, have a certain nitrogen fixation, phosphorus, potassium

III. The action mode of Bacillus subtilis

1. The role of competition: the seed or after filling root, bacillus subtilis can, root surface, root within and around the crop plants through the catheter conduction part to the ground and in the crop root, root, stem and leaf of allelic focal colonization and reproduction, protect the crop roots from bacteria infection and restrain the crop germs spread, so as to achieve prevention role.

2. Bactericidal effect: Bacillus subtilis can produce lipopeptides and proteins and other bactericidal substances in the process of colonization and reproduction of crop root surface, roots, stems and leaves, so as to kill crop pathogens and achieve disease prevention effect.

3. Growthpromoting effect: Bacillus subtilis has the effect of phosphorus digestion, which can transform ineffective phosphorus in the soil into effective phosphorus that can be absorbed by crops, promote the growth of crop roots and plants, and improve the disease resistance of crops.