Preparation method of brevibacillus brevis water dispersible granules
A technology of microbacillus and dispersible granules, which is applied in botany equipment and methods, fungicides, biocides, etc., can solve the problems that the effect of disease control is greatly affected, and achieve high disease control effect, long retention time, and dust pollution small effect
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[0034] Example 1:
[0035] Bacillus breve TW strain original powder (spore content of 2 × 10 12 cfu / g) 20g, sodium lignosulfonate 10g, calcium lignin 10g, urea 5g, fluorescent whitening agent 2g, light calcium carbonate 48g, carboxymethyl cellulose 5g. Pulverize and mix in a pulverizer to become master powder, further pulverize the master powder with a jet pulverizer to make the particle size less than 20 μm, then fully mix in a mixer, add a certain amount of water, granulate by extrusion method, and vacuum dry , the drying temperature is controlled at 30 ℃. After testing moisture less than 5%, sieve. The yield is 95%. i.e. get 4×10 10 cfu / g Bacillus breve water dispersible granules.
[0036] For field use, take 4×10 10 cfu / g Bacillus brevis water dispersible granules 10g, add water 40kg, spray. 20 days after application, the control effect on rice blast reached 79.5%.
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