Vetiver grass + ducks + bamboo + water = Duckponics Raft System planted with Vetiver for Phytoremediation of duck waste (Ducklings have been busy pulling the plants out, they seem to have found a food source in the soil the slips were transplanted in.) Finally got enough Vetiver grass to start a nursery. I'd been looking for vetiver to stop the erosion problem I have that keeps getting worse with each flash flood. According to the Vetiver for Farmers pdf I came across on vetiver.org, the idea is to plant the Vetiver slips out on an average contour, 4-6 inches apart, and after a few months they fill in the spaces and form a sediment and debris-collecting hedge above ground and a soil-holding, netlike root system below with one sixth the tensile strength of mild steel. Vetiver roots have been known to grow up to 6 meters deep, with most of root mass in the first meter. On a recent project I was involved in, we used vetiver grass as the main biofilter plant for the phytoremediation of compost leachate occurring with the flash floods. We planted 2000 slips across the leachate flow, and placed four vetiver rafts in the resting pond. While working on site, the idea of a Vetiver nursery powered by duck and fish poop somehow occurred to me. Why not? I mean, let's stack some functions here. How about a floating duck house that cleans the water beneath it, protects the ducks and grows an astounding amount of vetiver biomass at the same time. And why not add a net cage under it and put tilapia in there? So from one easily made bamboo raft, I could harvest protein in duck eggs and fish; vetiver tops for nesting material and/or mulch; and vetiver slips for planting out on contour to stop erosion. As if that weren't enough, I could also harvest the roots--steam distillation makes essential oil of Vetiver. I jumped in the car and sped to my local bamboo forest. Before I knew it, I had enough locally sourced bamboo to put a raft together. I released the vetivers' root systems before placing them so they'd grow out into the water and not think they were still in a baggie. Then I just wedged the Vetiver plants between the bamboo poles, hoping that would be enough to get them to stay. And I put a duck hut on it for protection from harsh sunlight, hawks and owls. So, I still have to add the fish cage underneath, and once I get the fish in there, it'll be time to let the system evolve...I was thinking a second raft with Cat Tail bulrush plants growing on it would be a good idea--and a shady spot for more fish.