The invention relates to a
brevibacillus brevis TW effervescent granule. The
brevibacillus brevis TW effervescent granule is prepared through the following steps of: mixing a
brevibacillus brevis TW strain single colony plaque PDA (
Potato Dextrose Agar)
liquid culture solution with
soybean meal,
corn meal, starches,
cane sugar,
yeast powder,
calcium carbonate and MnSO4 by adding water; mixing bacterial
fermentation liquor obtained by fermenting under the conditions of 100% dissolved
oxygen, the pH of 7.0-7.2 and the temperature of 30 DEG C with the
cane sugar,
polyvinyl alcohol,
citric acid monohydrate,
potassium tartrate and
sodium bicarbonate according to a proportion; screening, granulating, and
drying through steam flows at a temperature of 60 DEG C, wherein the total concentration ofviable
bacteria of a finished product is about 1*10<9>-1*10<10> cfu / g. The
brevibacillus brevis TW effervescent granule can be effectively suspended on a water surface and then fast disintegrated, releases the biocontrol
bacteria of living bodies and enables the biocontrol
bacteria to attach to the contact surface of the stem of a
rice plant and the water surface, thereby effectively
cutting off or spatially occupying the initial invasion of rice
rhizoctonia solani on the rice stem and achieving the purpose that
control effect on rice
sheath blight reaches more than 80 percent; and the
brevibacillus brevis TW effervescent granule is convenient for application, has low cost and can be preserved for 2-3 years at normal temperature.