根据１５年的试验观测数据，分析了水稻在不同生育期遭受水分胁迫对其生长发育的影响，并提出了水稻水量生产函数。因此，本文对指导水稻灌溉决策具有实际意义。 Based on 15 years of experimental observation data, the effects of water stress on the growth and development of rice at different growth stages were analyzed, and the rice water production function was proposed. Therefore, this article is of practical significance in guiding rice irrigation decision-making.