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A Study and Comparison of Soil Quality in Rice Cultivation at Seedling, Heading, and Golden Heading Stages in Na Muen Si Subdistrict, Na Yong District, Trang Province

Organization(s):Wichienmatu
Country:Thailand
Student(s):Nalinda Duangram Athicha Chobou Kanokwan Sarakul
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Kwanjai Karnchanasrimek
Contributors:Sutheera Thacheen Sawitree Duangsook
Report Type(s):Virtual Science Symposium Report
Protocols:Soil pH, Relative Humidity, Air Temperature, Soil Temperature
Presentation Poster: View Document
Language(s):English
Date Submitted:2026-01-30
This study was successfully completed with the support and cooperation of many individuals and organizations. The authors would like to express their sincere gratitude to the project advisor, Ms.Sutheera Thacheen Ms. sawitree Duangsook, for valuable guidance, constructive suggestions, constant encouragement, and careful supervision throughout the entire research process. The advisor’s expertise and dedication greatly contributed to the improvement and completion of this study. The authors would also like to extend their deepest appreciation to the school director, MrSakda Paisomboon for providing support, facilities, and a favorable environment for conducting this research. Special thanks are also given to all teachers and educational staff who offered helpful advice and assistance during the implementation of the project. Furthermore, heartfelt thanks are extended to the student researchers, namely Ms. Nalinda Duangram Ms. Athicha Chobou Ms. Kanokwan Sarakwhose cooperation, responsibility, and commitment played a crucial role in accomplishing this study. Their teamwork and perseverance enabled the successful completion of all experimental procedures and data analysis. Finally, the authors sincerely hope that the results of this study will be beneficial for academic learning and serve as a useful reference for future research and the improvement of agricultural studies.
This study comparing soil quality during rice cultivation at the seedling, heading, and heading stages in Na Mueang Si Subdistrict, Na Yong District, Trang Province, aimed to: 1) study soil quality during the seedling, heading, and heading stages, and 2) compare soil quality during the seedling, heading, and heading stages. The objective was to understand the soil conditions that directly affect rice growth and yield. Analysis of key variables revealed that the physical environment of the soil was suitable for cultivation, with a stable pH of 6.0-7.0, which is an optimal level for nutrient release. Furthermore, the soil had the ability to retain temperature at 26-28°C, even with external temperature fluctuations reaching 32.1°C during the heading stage. A comparison of nutrient levels at each stage showed that in the seedling stage... The soil had sufficient initial nutrients for growth. However, during the heading stage, nitrogen (N) levels increased significantly, reaching a maximum of 66.7°C, supporting panicle and flower formation. Finally, during the golden heading stage, the levels decreased. Phosphorus (P) and potassium (K) levels peaked at 106.7 and 30.0°C, respectively, consistent with the rice plant's need for nutrient translocation to accumulate nutrients for increased grain weight and quality. In summary, soil quality showed positive changes, with increases in major nutrients correlated with growth stages, effectively meeting the rice plant's needs at each developmental stage.


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