Bare root planting can be done by using healthy and effective tillers submerged in humic acid or water
for three days producing new roots and then transplanting them to the field between mid May and the
end of June. They should be planted with 10-cm hill spacing on 20/30-percent slopes. The 2-3 m
vertical interval of vetiver hedgerows is most suitable, losing little space of cultivation. Ten-cm hill
spacing enhances the growth and effectiveness of the hedgerow. The use of vetiver is suitable to
farmers’ agricultural conditions as it requires little practice, does not cost much and is effective for soil
conservation. Therefore, vetiver hedgerows practices should be recommended and transferred to the
farmers on the sloping lands in the upper north of Thailand for soil erosion protection. Vetiver
hedgerows will help preserve the natural resources and the environment of the country.