Trichoderma harzianum andT. viride were significantly effective in improving germination (6-14%), tiller population (21-78%), millable canes (5-30%), yield (6-38%) and CCS t/ha (30-34%) over the control in plant cane of CoS 94257. Metabolites of both the species @ 2.5% were found to be more efficient and significantly better than spore suspension (106 conidia/ml) and TMC containingTrichoderma @ 2 kg/ha in 20 kg sterilized farm yard manure (FYM). The metabolites improved tiller count (53-78%), millable canes (27-30%) and yield (34-38%). The yield boost up by the metabolites was up to 81.9 t/ha withT. viride and 79.8 t/ha withT. harzianum over 59.3 t/ha of control. The differences in yield due to both the species were significant.T. viride alone was tested for improving the yield of ratoon. The emergence of clumps was enhanced with spore suspension, TMC and metabolites ofT.viride. The metabolites were, significantly superior for increasing the number of clumps (43.2%) than the other treatments (1.7-20.1%) and control.T. viride metabolites were also better for producing more tillers (75%) and millable canes (40%). The improvement in yield ranged from 53.16 t/ha to 76.31 t/ha with metabolites and 72.13 t/ha with double doze of TMC, half applied at clump emerging stage and half at tiller stage. CCS t/ha was also enhanced in ratoon crop by 40% with metabolites and 36% with double doze of TMC. Application ofT. harzianum andT.viride was found to be economical, non hazardous and useful for soil health. The benefit cost ratio suggests that by expending
*Rs. 1000/ ha onTrichoderma in sugarcane a benefit of Rs. 11500/ in plant cane/ha and Rs. 16500/ in ratoon /ha may be obtained.