For treatment 2 (T2), the vetiver grass was planted in a circle with an 80-centimeter radius consisting of eight holes of vetiver grass surrounding the trees and covered with 15 kilograms of mulching materials (see Figure 4). Figure 4. Treatment 2 (T2), of the experiment. For treatment 3 (T3), the vetiver grass was planted in a circle with an 80-centimeter radius surrounding the trees with two water pipes made of 1,000 cc plastic bottles and four air pipes made of 600 cc plastic bottles. These were buried underneath on the four sides of the plot to let the air in and covered the circle with 15 kilograms of mulching materials with two tubes of water and four tubes of air buried in the circle (see Figure 5). Figure 5. Treatment 3 (T3), of the experiment. 4 THE ASIA REGIONAL FORUM ON BIODIVERSITY
In Celebration of His Majesty the King of Thailand’s 84th Birthday Anniversary
To see the actual publication please follow the link above