Application of Bacillus in the Culture of Macrobrachium rosenbergii

(Agricultural Wealth Network) Boss Cui, a farmer in Gaoyou Fishery Village, raised 15 mu of Macrobrachium rosenbergii from greenhouse culture to pond culture. After 8 days of cultivation in pond, he found that cyanobacteria burst out and formed a pond covered with blue oil film. In this case, Boss Cui went to Qinggao Fishery Pharmacy of Baima Farm to seek treatment measures.

I. Basic conditions of pond

Macrobrachium rosenbergii pond area 15 mu, water depth 70cm, pond cyanobacteria began to bloom and form blue oil film.

II. Treatment methods

1, the first day with chlorine dioxide per bag of 2 acres of rice;

2. On the second day, 5000ml of pond surface water was taken and 1 jin of brown sugar was added, and then a bottle of Bacillus species was put into it for simple cultivation;

3. On the third day, the cultured Bacillus live bacteria solution will be sprinkled in the whole pool of water.

III. Application effect

The water color of shrimp pond changed obviously 5 days after Bacillus was used.

1. Cyanobacteria oil film disappeared, only a small amount of yellow oil film and small granular algae floated in the downwind mouth;

2. Shrimp pond presents a healthy yellowish green color.

IV. Analysis and summary

After 24 hours of culture, Bacillus strains form high-concentration living bacteria solution, which quickly forms population dominance after entering water, quickly decomposes dead algae corpses, consumes a large number of nutrients in water, and indirectly inhibits the excessive reproduction of algae. Therefore, it plays a role in purifying water quality and inhibiting blue-green algae. CuiLaobang water color was yellowish green, indicating that Bacillus and beneficial algae in the pool water reached a balanced state, water quality is relatively stable.

Feedback from farmers 'friends: Boss Cui is satisfied with the measures taken to treat cyanobacteria and recognizes the Bacillus strains produced by the company.