铁肥树干强力高压注射以二价铁主要沿中央木质部的导管运输 ,大部分向下运往根系 ,致使根中贮存大量的铁 ,向上运稍难 ,运输速度每小时达数百厘米 ,矫正缺铁失绿症的速度比根系输液慢 ,但由于根中贮存大量的铁 ,持效期较长 Iron-rich trunk of the high-pressure injection of ferrous iron mainly along the central xylem catheter transport, most of the downward transport to the roots, resulting in the root storage of a large number of iron, the transport is difficult, the transport speed of hundreds of centimeters per hour, correct iron deficiency Chlorosis is slower than root transfusion but due to the large amount of iron stored in the root, the persistence is longer