【摘要】 通过2020年、2021年每年分3个播期在大同农试站种植的中晚期大豆，分析研究1981年—2010年30年、2020年、2021年的温度、降水、光照对中晚期大豆发育期的影响，可得出中晚期大豆的适宜播种时间为5月5日—12日，种植的过早，存在霜冻风险，种植的过晚，成熟不了，可以用多种灌溉方式缓解旱情，大豆生育期光照充足，无不利影响。更多还原

【Abstract】 Based on the middle and late stage soybeans planted in Datong Agricultural Test Station in three sowing dates every year in 1981—2010, 2020 and 2021, the effects of temperature, precipitation and light on the development period of middle and late stage soybeans in the 30 years from 1981 to 2010, 2020 and 2021 are analyzed. It can be concluded that the suitable sowing time of middle and late stage soybeans is May 5 to 12. It is planted too early, there is frost risk, and it is too late to mature, various irrigation methods can be used to alleviate the drought, and the light is sufficient during the growth period of soybean without adverse effects.更多还原