Super Napier grass comes from dairy farmers in Thailand and is best Green Grasses for Dairy Animals. It is high yielding green fodder. Super Napier contains 16 -18 percent protein. Super Napier farming is very useful as it is very fast growing and high-yielding. Super Napier cultivation yield upto 500 tons per hectare in one year. Super Napier farming in one hectare can produce enough grass to feed 50 dairy cows in one year. Rehoboth Organic Farms video.