【摘要】 铁胁迫致苹果黄叶时，对根系输铁液能在较短时间内提高叶片叶绿素和铁的含量，从而达到复绿的效果。在ＦｅＣｉｔｒｉｃ ａｃｉｄ、ＦｅＥＤＴＡ 和ＦｅＮ 三种铁肥中，ＦｅＮ 是适宜根系输液的铁肥品种，主干强力高压注射铁肥复绿较慢，叶面喷布效果不显著。更多还原

【Abstract】 Apple chlorosis caused by iron deficiency stress can be corrected in short time by raising the content of chlorophyll and iron in leaves through injecting ion fertilizers into the trunk or inserting the roots in the emulsion bag with fertilizer.Among Fe Citric acid,Fe EDTA and Fe N the best effect was obtained by Fe N.It takes more time to correct chlorosis when iron fertilizer is intensively injected into trunk.The effect of spray on leaves is not obvious.更多还原