采用分期播种法，分析了光、温、水等气候因素和红小豆生育期、生育结构及开花结荚的关系。结果表明，随着播期的推迟，全生育日数、播种至出苗日数、出苗至始花日数、始花至终花日数都逐渐缩短，日平均温度的升高是播种至出苗阶段缩短的主要原因；日平均温度升高，光照时数缩短，共同促进了出苗至始花日数的减少；光照时数缩短，使站花至终花日数逐渐缩短。5月29日红小豆单株花朵数、单株结荚数减少除了受播期各生育阶段缩短影响外，晚播花期降雨量减少是又一原因。 The staging sowing method was used to analyze the relationship between light, temperature, water and other climatic factors and the growth period, reproductive structure and flowering pod of adzuki bean. The results showed that with the delay of sowing date, the total number of days of birth, the number of days from sowing to emergence, the number of days from emergence to the beginning of flowers, the beginning to the end of flowers were gradually shortened, the average daily temperature increased from sowing to emergence of the main reasons for the shortening The average daily temperature increased, the number of hours of illumination shortened, together to promote the emergence of flowers to reduce the number of days; light hours shortened, the station to the end of the flower days gradually reduced. On May 29, the number of red adzuki beans per plant and the number of pods per plant were reduced. In addition to the shortening effect of each growth stage of sowing date, the decrease of rainfall during late seeding stage was another reason.