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采用ＥＤＤＨＡＦｅ在高钙、高ｐＨ值土壤柑桔园进行连续两年试验表明，土壤施用ＥＤＤＨＡＦｅ可以矫治钙质紫色土中枳砧柑桔树的缺铁黄化症，成倍地提高叶绿素含量，一般连续两年较大剂量处理后，黄化症状可基本消失，明显增加单株果实产量，对甜橙果实品质有良好影响的趋势。在ＥＤＤＨＡＦｅ的两种剂型中，叶绿灵的效果优于绿喜旺，较大剂量施用的效果优于低剂量。认为土壤施用ＥＤＤＨＡＦｅ是目前矫治缺铁黄化症效果最理想的途径之一。
EDDHA Fe in high calcium and high pH soil citrus orchard for two consecutive years of tests showed that the application of soil ED DHA Fe can be treated calcareous purple soil Trifolium orange tree yellow iron deficiency, doubled To increase the content of chlorophyll, generally two consecutive years of larger doses of treatment, the yellow symptoms can disappear, significantly increased per plant fruit yield, the quality of orange fruit have a good trend. In EDDHA Fe two formulations, the effect of chlorophyll better than green Xi Wang, larger doses of the effect is better than the low dose. It is considered that soil application of EDDHA-Fe is one of the most effective ways to treat iron deficiency yellow syndrome.