：分析了夏秋麦１号各生育期的氮、磷、钾含量。由于夏秋麦生育期间气温高、生育期短，因此养分吸收早、速度快，出苗到拔节的１２天吸收养分重达总吸收量的１２．５％—１３．９％；仅拔节到小花分化的６天中吸收量即为总量的２０％以上。吸收强度最大时期也在拨节—小花分化期。每产１００公斤籽粒需吸收Ｎ５．０１公斤、Ｐ２Ｏ５１．４６公斤、Ｋ２Ｏ６．３２公斤，显著高于冬小麦。认为重施基肥、及早追肥是夺取夏秋麦高产的必要条件。 : The contents of N, P, K in different growth stages of Xiaqiumai 1 were analyzed. Due to the high temperature and short growth period of summer and autumn wheat, nutrient absorption is earlier and faster, and the nutrient uptake reaches 12.5% ​​-13.9% of the total absorption in 12 days after emergence and jointing. 6 days the amount of absorption is the total amount of more than 20%. Absorption intensity of the largest period is also dial - floret differentiation period. Each 100 kg of grain to be absorbed N5.01 kg, P2O51.46 kg, K2O6.32 kg, significantly higher than winter wheat. That the heavy base fertilizer, early dressing is to seize summer autumn wheat high yield necessary conditions.