Question: query regarding control of rhizome rot in ginger
Answer: seed rate: seed rhizome with one or two good buds weighing about 5g @ 1 q/bigha.
plant protection: rhizome (soft) rot: 
rhizome treatment with copper oxychloride (coc) @ 3g/lit + streptomycin (0.2g/lit) for 45 minutes followed by shade drying and planting and two soil drenching with coc @ 3g/lit at 60 and 90 days after planting against rhizome rot .