The invention relates to the fields of biological
pesticide and microbial
fertilizer, and specifically discloses a
bacillus subtilis wettable powder containing
spore germinator and a preparation method thereof. The
wettable powder is composed of the following raw materials in parts by weight: 40 to 70 parts of
bacillus subtilis fermentation broth, 20 to 30 parts of filling material (diatomite), 1 to 4 parts of
wetting agent (Morwet EFW), 0.2 to 1 part of dispersant (CMC-Na),
spore germinator: 0.1 to 0.5 part of L-
alanine, 0.1 to 0.5 part of
inosine, and 0.5 to 1.5 parts of
fructose; UV protector: 0.5 to 2 parts of
ascorbic acid, and 0.2 to 1 part of
lecithin;
dryness protector: 1 to 4 parts of
maltose and 0.2 to 1 part of methylcellulose, and 1 to 2 parts of synergist (amino oligosaccharin). After the prepared
bacillus subtilis wettable powder is applied to the fields, the
spore germination speed is accelerated, the
germination rate is high, the fertilizing effect and the
plant disease control effect are both prominently improved, the using amount of spores is reduced, and the cost is reduced.