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Comparison of Soil Quality with Vetiver Cover and Brazil Nuts

Organization(s):Wichienmatu
Country:Thailand
Student(s):Ms. Jirapat Chunet Ms. Pitchaporn Haman Ms. Thansinee Nirunrat
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Kwanjai Karnchanasrimek
Contributors:Mrs. Kwanjai Karnjanasrimak Ms. Naeriya Tonkrongchan Ms. Palita Janduang
Report Type(s):Virtual Science Symposium Report
Protocols:Soil Temperature, Soil Moisture - Gravimetric, Soil pH
Presentation Poster: View Document
Language(s):English
Date Submitted:2026-01-28
Soil quality was evaluated by measuring nitrogen (N), phosphorus (P), and potassium (K) used a soil test kit. Soil moisture content and soil pH were also measured to assess the overall soil quality of the study area.
Comparison of Soil Quality with Vetiver Cover and Brazil Nuts at Wichienmatu School, Trang Province, the objectives were to compare the soil quality covered with vetiver and Brazil nuts at Wichienmatu School, Trang Province by collecting soil samples from the area where vetiver is grown and the area where Brazil nuts are grown at Wichienmatu School, Trang Province. To analyze and compare soil quality such as nutrient values N, P, K, soil moisture values, and acidity-alkalinity values, the results of the study showed that areas covered by both types of plants have different effects on soil quality. The soil covered by vetiver has nutrient values N, P, K in the soil, better soil moisture, and neutral acidity-alkalinity values. As a result, the quality of the soil with vetiver cover is better than the soil with the Brazil nut cover.


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