Hybrid rice in Northern China has higher yields than conventional rice due to its better economic coefficient and higher assimilate distribution rate to grains. Hybrid rice has more grains and larger kilo-grain weight, but the advantage in grains comes from secondary branches, leading to lower seed rates. To maximize hybrid rice yield, increasing photosynthesis and seed rates is necessary. One-seedling rice is better for increasing average panicle weight, kilo-grain weight, and seed rate, while three-seedling rice is more suitable for conventional rice. Matching the right cultivars with the appropriate planting methods is crucial for maximizing yield.