s:640:"TI Appropriate spacing of Natural Vegetative Filter Strips (NVS) as foundation for Agroforestry System. AU Laput L AU Mercado Jr A R AB Soil erosion from sloping farms exacerbated by inappropriate farming Practices ranged from 50-370 tons yr . (Mercado, et al. 2002) Upland crop yields declined 200-500 kg/ha (Fujisaka, et al. 1988) River systems in South East carry 10 times more sediment out to sea than any other river systems globally. Conventional spacing of vegetative buffer strips is at 1 meter vegetative drop. This entails crop area taken away from crop production which dramatically reduces farmers' willingness to adopt ";