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A Comparison of Soil Properties in the Sufficiency Economy Garden Area and the Waste Incineration Chimney Area at Phak Mai Wittayanukul School.
Organization(s):Phakmaiwittayanukul school
Country:Thailand
Student(s):Mr. Supawit Chanchaeng
Mr. Worapol Sombatwong
Mr. Peerapat Chaengpromma
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Darunee Samerpak, Samruan Samerpak
Contributors:Ms. Sasiwimon Pangma
Report Type(s):Virtual Science Symposium Report
Protocols:Soil pH, Soil Temperature
Presentation Poster:
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Language(s):English
Date Submitted:2026-01-30
This research aimed to compare the chemical and physical properties of soil between the self-sufficient garden area and the waste incineration chimney area at Phak Mai Wittayanukul School. pH, major nutrient content (nitrogen, phosphorus, and potassium), moisture content, color, and soil texture were analyzed. The results showed that the soil in the self-sufficient garden area was of better quality, with an average pH of 6.5, which is suitable for plant growth, while the soil in the waste incineration chimney area had a relatively acidic pH. Furthermore, the amount of major nutrients, especially phosphorus, was significantly higher in the cultivated area, and the soil in the chimney area also exhibited greater moisture content and looser structure. The research indicates that cultivation contributes to improving both the chemical and physical properties of the soil and that the findings can be used as a guideline for managing and restoring degraded soil to achieve fertility and sustainability.