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A Study and Comparison of Soil Quality After Discharging Wastewater from Hydroponic Cultivation in Suso Subdistrict, Palian District, Trang Province, Thailand
Organization(s):Wichienmatu
Country:Thailand
Student(s):Mr. Thanyathep Chuchom
Ms. Kotchakan Thongsang
Ms. Plaichat Panneam
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Kwanjai Karnchanasrimek
Contributors:Mrs. Sutheera Thachin
Ms. Sawitree Duangsuk
Report Type(s):Virtual Science Symposium Report
Protocols:Soil Temperature, Soil pH, Soil Moisture - SMAP Block Pattern, Soil Fertility
Presentation Poster:
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Language(s):English
Date Submitted:2026-01-30
This research aims to: 1. Study soil quality after releasing hydroponic effluent, and 2. Compare soil quality between areas with and without effluent discharge. The study focused on changes in soil pH and other properties for potential application in fertilization. Data collected included pH, soil fertility (N-P-K), soil moisture, soil structure, soil color, soil consistency, and soil texture. The results showed that areas with hydroponic effluent had higher average primary nutrients, soil moisture, and soil temperature than areas without discharge. Both areas had a granular soil structure. Soil in the treated area was dark black, while the untreated area was light brown. The texture in the effluent area was sandy loam, whereas the untreated area was sandy clay.