【摘要】 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 ,持效期较长更多还原

【Abstract】 The iron fertilizer by high-pressure trunk-injection indicates:Fe 2+ was transported along the central xylem ,most of Fe 2+ was transported and stored in roots.It was a little difficult for Fe 2+ to be transported upto leaves.The speed of transportation reached several hundred centimetres per hour when trunks were injected with iron fertilizer with high-pressure.Regreening of iron deficiency chlorosis trees was slower but the effect of correcting iron deficiency chlorosis lasted longer when trunks were injected with iron fertilizer than iron fertilizer was root injected.更多还原