采用干灰化——原子吸收分光光度计法 ,测定了田间高产试验条件下冬小麦不同生育时期植株地上部各器官的铁含量 .结果表明 :麦株含铁量随生育时期呈单峰曲线变化 ,其峰顶位于返青期 ;铁吸收量随生育的时期呈双峰曲线变化 ,其峰顶分别位于拔节期和乳熟期 ,而峰谷出现在开花期 ;各生育阶段麦株体内铁始终以叶片分配比率最高 ;形成 1 0 0kg籽粒需要吸收铁 1 7.98g . The contents of iron in different organs of above-ground parts of winter wheat under different yield stages were measured by dry ashing-atomic absorption spectrophotometer.The results showed that the content of iron in wheat plants showed a single-peak curve with growth period, The peak is located in the turning green stage; the amount of iron absorption showed a bimodal curve with the growth period, the peak at jointing stage and milky maturity stage, while the peak valley appeared in flowering stage; The highest distribution rate; the formation of 1 0 0kg grains need to absorb iron 1 7.98g.