The study looked at how different types of rice and ways of planting them affect the amount of methane released from paddy fields. They found that early rice fields release less methane before drying, while late rice fields release more during the growing stage. Directly sowing rice led to lower methane emissions per day but higher total emissions compared to transplanting. Overall, the methane emissions per unit of grain produced were higher for direct sowing than transplanting. In the end, the order of methane emissions was direct sowing of conventional early rice > transplanting of conventional early rice > direct sowing of early rice super hybrid > transplanting of early rice super hybrid, and direct sowing of late rice > transplanting of late rice.