Student Research Reports

View Research Report

The objective of this study is to compare the soil quality in rice fields, as well as the water quality in nearby water sources and within the rice fields, both before and after rice cultivation, in terms of physical and chemical properties in Moo 7, T. Nangam , A. Mueang , Trang Province. Data was collected from June 11, 2024, to January 31, 2025, to study soil quality (pH, electrical conductivity, salinity, organic matter, nitrogen, phosphorus, potassium) and water quality (temperature, nitrate, phosphate, oxygen, salinity). The results showed that during the rice cultivation period, the soil quality was slightly higher than before cultivation, with an average nitrogen level of 5.33 mg/L, phosphorus averaging 0.67 mg/L, and potassium averaging 17.11 mg/L. Electrical conductivity had an average of 0.10 cos, and salinity averaged 60.44 ppm. The pH values ranged from 5.44 to 6.44. After the rice harvesting period, it was found that electrical conductivity, salinity, and organic matter in the soil tended to increase, while nitrogen and potassium levels showed a tendency to decrease. The water quality in the rice fields during the cultivation period showed an average pH range of 5.33 to 7.0, with an average salinity of 73.50 ppm, nitrate averaging 0.5 mg/L, and phosphate averaging 0.28 mg/L. The water quality in nearby water sources during rice cultivation showed an average pH of 7.5, with an average salinity of 54.67 ppm and phosphate averaging 0.33 mg/L. After harvesting, the water quality in both the rice field water and nearby water sources showed an increasing trend in pH, salinity, and phosphate levels