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A Study of the Correlations of Soil Properties with Growth and Yield of Sudan Roselle (Hibiscus sabdariffa L.) in Post-Harvest Rice Fields in Phak Mai Subdistrict, Huai Thap Than District, Sisaket Province, Thailand

Organization(s):Phakmaiwittayanukul school
Country:Thailand
Student(s):Ms.chutimadee Sombatwong Ms.Pimchanok Fangcum Ms.Faungfa Krasang Mr.Thanakrit Kongthungmon
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Darunee Samerpak, Samruan Samerpak, Aemon Fakchiangcha
Contributors:Ms. Sasiwimon Pangma
Report Type(s):Virtual Science Symposium Report
Protocols:Air Temperature, Relative Humidity, Soil Fertility, Soil Moisture - Gravimetric, Soil pH, Soil Temperature
Presentation Poster: View Document
Language(s):English
Date Submitted:2026-01-30
The student measuring the Sudan roselle .
This research investigates the Correlations of soil properties and the growth and yield of Sudan strain Roselle in post-harvest rice fields in Phak Mai Subdistrict. The study was conducted at Khok Samrong village using three soil management models: organic, control, and chemical fertilizer plots. Data collection followed GLOBE Protocols to measure soil physical and chemical properties, including texture, color, structure, temperature, moisture, pH, and N-P-K levels. Growth were assessed based on plant height, leaf count, stem diameter, and the number of pods per plant. The results aim to provide scientific data for effective community soil management and sustainable agriculture.


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