Synergy of Anaerobic Soil Disinfestation and Trichoderma spp. in Rhizoctonia Root Rot Suppression

Potential synergy between anaerobic soil disinfestation (ASD) and Trichoderma spp. in suppression of Rhizoctonia root rot radish was evaluated. A split-plot design with three replications used; main plots were harzianum T22, asperellum NT25 a non- control. Subplots ASD carbon sources wheat bran, molasses, chicken manure, mustard greens two non-amended controls: (covered flooded) aerobic (not covered or flooded). Carbon solani inoculant mixed soil, placed pots, flooded, followed by drenching spore suspensions sealing the pots zip-lock bags. After 3 weeks, bags removed, aired for 1 week “SSR-RR-27” seeded. severity incidence lowest plants grown ASD-treated amended across all treatments. Disease lower treated than T22 control treatments, bran plus compared to ASD-wheat alone. populations significantly reduced treatment regardless source, while not affected exception ASD-mustard greens. The interactions either isolate most additive, ASD-molasses ASD–wheat synergistic reducing disease severity. One interaction, ASD-chicken manure antagonistic. Enhancement efficacy suppressing soilborne diseases such as additional amendment during process appears be dependent on both source.