Is elephant foot yam (suran) profitable and what yield and price can I expect?

Elephant foot yam (suran) can be a profitable crop because it gives a high corm yield per acre, often a heavy tonnage, and the corm fetches a fair rate with steady demand, especially around festivals when it is traditionally eaten. It is a long duration crop of several months and a heavy feeder, so input and corm planting material costs are significant, and corm rot is the main risk. A useful feature is that the harvested corm stores for a good while, letting you hold and sell at better rates. Non acrid improved varieties sell more easily. Profit can be attractive for growers with good drainage and management. Check your local market rate and ask established growers for realistic yields and costs before deciding.