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缺铁是柑桔生产中存在较为普遍的问题。施用螯合铁Fe·EDTA和Fe·EDDHA比较有效,但由于成本太高,难以在生产上推广应用。国内近年来采用硫酸亚铁埋瓶法矫治柑桔缺铁取得一定进展,但因柑桔品种、砧木或土壤不同,以及铁盐浓度不适,在紫色土柑桔园不但无效,反而引起大量枯枝落叶。1985—1987年,我们应用不同铁盐进行根系挂瓶,探索矫治柑桔缺铁的新途径。
Iron deficiency is a more common problem in citrus production. The application of chelated iron Fe · EDTA and Fe · EDDHA is more effective, but due to the cost is too high, it is difficult to promote the production. In recent years, the domestic use of ferrous sulfate buried flask method to rectify citrus iron deficiency made some progress, but due to different citrus varieties, rootstocks or soil, and iron concentration discomfort, citrus orchards in purple soil not only invalid, but cause a large number of dead branches Fallen leaves. From 1985 to 1987, we used different iron salts for root-hanging and explored new ways to treat iron deficiency in citrus.