Isolation, identification, and biocontrol effects of Bacillus spp. from the rhizosphere of alfalfa Interaction among antagonistic Bacillus spp. strains and their suppression against rice sheath blight biological control| tomato bacterial wilt| Bacillus spp| antagonistic activity| Screening of Bacillus strains with high inhibition on rape Sclerotinia disease and its lipopeptide compounds detection