Soil erosion control with Vetiver

Vetiver root is onesixth as strong as steel. It's strong hold to the soil make it an usful components for soil erosion now a days. Plantation of Vetiver the cheapest method to control erosion compared to other techniques. Maney highways are seen today having planted vetiver grass on both sides. It's ecofriendly and requir less effort to plant and once survived require almost no effort to maintain for ever.