Student Research Reports

This study aimed to examine and compare soil moisture conditions surrounding cassava plants exhibiting different growth characteristics and disease in a cassava cultivation field located in Yang Talat District, Kalasin Province, northeastern Thailand. Soil moisture is a key environmental factor influencing root development, nutrient uptake, and overall plant growth, and its spatial variability may lead to differences in crop performance even within the same field. Soil data were collected by (SMPS) soil multi parameter sensor following the GLOBE Soil Moisture Protocol. Cassava plants were classified into three growth groups: healthy plants showing normal growth, diseased plants with reduced vigor, and stunted plants with limited canopy development. Soil measurements were conducted at five evenly distributed sampling points around each plant, resulting in a total of fifteen soil observations. Measured parameters included soil moisture content, soil temperature, soil pH, electrical conductivity, and selected basic soil chemical indicators related to soil fertility. Soil moisture values showed clear variability among plant groups, with average values ranging from approximately 8.76% to 11.38%. with healthy cassava plants generally exhibiting higher moisture levels than low-growth plants. Descriptive statistical analysis was applied to evaluate differences in soil moisture patterns among plant groups. The results illustraited clear variability in soil moisture distribution associated with cassava growth performance. The findings highlight the importance of soil moisture management in cassava cultivation and provide scientific evidence supporting sustainable agricultural practices under changing environmental conditions.