The invention discloses a
straw fiber seedling-raising substrate for colonizing biocontrol
bacteria, a production method of the
straw fiber seedling-raising substrate, and a two-step biocontrol
bacteria colonizing method of the
straw fiber seedling-raising substrate, and belongs to the technical field of
crop colonization biocontrol
bacteria. Specifically the two-step biocontrol bacteria colonizing method comprises the following steps: the first step is the
colonization of a biocontrol bacteria
powder mixed with the substrate, the spray
colonization of a biocontrol bacteria water agent, or thespray colonization of a biocontrol bacteria liquid; and the second step is that 10-15 days after the straw fiber substrate colonization biocontrol bacteria, the straw fiber substrate colonized with biocontrol bacteria, and
crop seedlings are transplanted into a field simultaneously, and the substrate and
crop seedling biocontrol bacteria are colonized in the field, wherein the used biocontrol bacteria are one or a mixture of more than one of
Trichoderma aureoviride,
Bacillus amyloliquefaciens,
Streptomyces parvus, Talaromyces flavus, and
Chaetomium aureum. According to the straw fiber seedling-raising substrate for colonizing biocontrol bacteria, the production method of the straw fiber seedling-raising substrate, and the two-step biocontrol bacteria colonizing method of the straw fiber seedling-raising substrate, the biocontrol bacteria can be effectively colonized, thereby the
disease resistance of the seedlings is improved, and the
stress resistance of seedling
transplanting is significantly improved.