Management of root and collar rot of soybean through bio-control agent Trichoderma

In the present investigation, the maximum reduction in collar & root rot was achieved i.e. 52.81 and 44.10% in soil application of Trichoderma @ 3 kg/50 kg FYM/ha and seed treatment @ 4 g/kg + soil application @ 2 kg/ha respectively. The maximum yield was obtained due to seed treatment with Thiram + Carbendazim +Trichoderma @ 3 + 1 + 4 g/Kg (14.75 q/ha.). The seed treatment with Trichoderma @ 4g + soil application @ 2kg/ha also recorded 14.33 q/ha grain, while it was at equal level of significance with soil application of Trichoderma @ 3 Kg/ha (13.94 q/ha). Dual application i.e. seed treatment and soil application 4g + 2 kg/FYM and seed treatment with Thiram + Carbendazim + Trichoderma (3 + 1 + 4 kg) proved to be effective in recording the higher grain yield with maximum diseases reduction. Seed treatment with Thiram + Carbendazim + Trichoderma (3 +1 +4 g/kg) also recorded ICBR 1:31 with maximum net return i.e. Rs.3905/ha followed by seed treatment of Trichoderma @ 4 g/kg + 50 kg FYM/ha. i.e. Rs.3278/ha.