Virtual Booth

This study investigates the relationship between soil moisture and fertilizer degradation using Arduino IDE and ESP32 boards to monitor moisture levels. It evaluates the synergistic effect of silk cocoon-derived hydrogel and biochar from longan branches on the controlled release of N-P-K fertilizer (15-15-15). The findings reveal that the combination of hydrogel and biochar (Test Group 4) sustained high N-P-K levels in soil for up to 42 days, outperforming all other groups. This correlated with consistently higher soil moisture, indicating the material’s capacity for water and nutrient retention. The results highlight a promising approach to improving fertilizer efficiency and advancing sustainable agriculture.