Moisture management affects rice growth and yield. Dry-wet irrigation boosts root growth and grain yield compared to flooded irrigation. Dry-wet irrigation increases plant biomass, root activity, and antioxidant enzyme activity. It also enhances panicle and spikelet numbers, and seed setting rate, leading to higher grain yield. Wetting irrigation, on the other hand, results in lower root growth and activity. Overall, dry-wet irrigation is more beneficial for rice growth and yield under no tillage conditions.