Bacillus subtilis is a novel microbial source of biological pesticides . Bacillus subtilis has a good effect in controlling diseases of rice, wheat, peanut, tomato, pepper, soybean, corn and other crops, especially for wheat powdery mildew, scab, sheath blight and other diseases. The field yield increase has reached 10% to 50%.

Bacillus subtilis has stronger nutrient competition ability and oxygen competitive advantage; colonization and reproduction speed are faster, and it can quickly inhibit the survival of other pathogenic microorganisms, and play a role of “skinning” to protect plants and ensure the healthy growth of plants. The evaluation of Bacillus subtilis is “less dosage, good control effect, green and environmental protection, increasing production and increasing income”.

First, the characteristics of Bacillus subtilis

1. Green and environmental protection: It is non-toxic and harmless to humans and animals, does not pollute the environment, and is safe for crops.

2, efficient broad spectrum: can produce a variety of antibiotics and enzymes, with broad-spectrum antibacterial activity and strong resistance to stress.

3. Increasing yield and quality: Bacillus subtilis can also secrete active substances that promote crop growth, making the leaves of the plants rich in green and thick, improving crop immunity, increasing yield and quality, producing a variety of amino acids during fermentation, and regulating growth of crops. The role.

Second, the role of Bacillus subtilis

1. Improve the ability of crops to resist disease, cold and drought.

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

3. Promote the decomposition of organic matter in the soil into humus and stimulate crop growth.

4. Promote crop growth, maturity, reduce costs, increase production, and increase income.

5. There is a certain role of nitrogen fixation, phosphorus dissolution and potassium dissolution.

Third, the mode of action of Bacillus subtilis

1. Competitive effect: After seed dressing or root filling, Bacillus subtilis can be transmitted to the aboveground part of crops, roots, stems, leaves, etc. in crops, roots, roots and through plant conduits. Point colonization and reproduction, protect crop roots from pathogens and inhibit the spread of pathogens in crops, thus achieving disease prevention.

2. Sterilization: Bacillus subtilis can produce bactericidal substances such as lipopeptides and proteins during colonization, propagation, and reproduction of crop roots, roots, stems, and leaves, thereby killing crop pathogens. Disease prevention effect.

3. Promoting effect: Bacillus subtilis has a phosphorus-dissolving effect, which can convert the 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.

Fourth, the use of Bacillus subtilis

1. Rice blast, sheath blight, rice smut. Application method: the application of the rice at the mating stage and the heading stage. Each acre was sprayed evenly with 10 g of Bacillus subtilis, and the spray was separated by 7-12 days.

2. Bacillus subtilis mixed with prochloraz, tricyclazole, Jinggangmycin, etc., has obvious synergistic effect. In the case of concentrated disease and acute outbreaks, it is more likely to show mixed effects.

Five, Bacillus subtilis use precautions

1, the amount of this product is small, in order to reduce waste, use a small container to fully dissolve the required amount of the drug, then pour into the sprayer, add water to the sprayer's best horizontal line for spraying;

2, before 10 o'clock in the morning or after 4 o'clock in the afternoon, avoid direct sunlight and kill spores. Especially after 4 o'clock, the wet environment at night is more conducive to spore germination.

3, can not be mixed with copper preparations, streptomycin and other fungicides and alkaline pesticides ;

4. The application effect is best at the beginning of the disease or before the onset of the disease. When applying the medicine, pay attention to evenly spray the liquid to all parts of the crop.

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Basic specification

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