Previous research has shown that application of iron chelates to soil reduces Fusarium wilt in several crop species. The aim of this work was to test the effect for bananas grown in tropical soils. Disease severity and plant characteristics were measured in banana plants (cv. Ducasse, Musa ABB) grown in pots inoculated with Fusarium oxysporum f. sp. cubense, Race 1 in two experiments. Experiment 1 compared amendment with iron chelates (with ligands of differing iron binding stability) with water, plus an uninoculated unamended control, in two tropical Australian soils. Experiment 2 examined the effect of Fe-HBED application rate with high or low calcium addition. In Experiment 1, iron-saturated chelate application did not significantly affect disease severity or plant tissue iron concentration, irrespective of the iron binding stability of the chelate. In Experiment 2, disease severity was not affected by Fe-HBED or calcium application rate. The concentrations of iron and aluminium in plants were both somewhat affected by the addition of Fe-HBED, calcium and their interaction. Fusarium wilt of bananas was not affected by addition of iron chelates to these soils. The lack of effect was likely due to high iron availability in the soils overwhelming the capacity of the treatments to alter iron availability to the host plant and pathogen. Application of strong chelating ligands increased the concentration of aluminium and decreased the concentration of manganese in plant tissue, with possible detrimental effects.

先前的研究表明，在土壤中施用铁螯合物可减少几种农作物的枯萎病。这项工作的目的是测试对热带土壤中种植的香蕉的影响。在接种尖孢镰刀菌（Fusarium oxysporum f ）的盆中生长的香蕉植物（cv。Ducasse，Musa ABB）中测量了疾病的严重程度和植物特征。sp。立方体，两个实验中的第1场比赛。实验1在两种热带澳大利亚土壤中，对水与铁螯合物（具有不同的铁结合稳定性的配体）和未接种的未修饰对照进行了比较。实验2研究了高或低钙添加量下Fe-HBED施用量的影响。在实验1中，铁的饱和螯合剂施用不会显着影响疾病的严重程度或植物组织中的铁浓度，而与螯合物的铁结合稳定性无关。在实验2中，疾病严重程度不受Fe-HBED或钙施用量的影响。Fe-HBED，钙及其相互作用对植物中铁和铝的浓度都有一定的影响。香蕉枯萎病不受这些土壤添加铁螯合物的影响。缺乏效果的原因很可能是由于土壤中铁的利用率高，使处理能力无法改变寄主植物和病原体的铁利用率。强螯合配体的应用增加了植物组织中铝的浓度并降低了锰的浓度，可能产生不利影响。