Glutathione foliar fertilisation prevents lime‐induced iron chlorosis in soil grown Medicago scutellata

It has been proposed that glutathione can relieve the effects of Fe deficiency. This study tested the effects of glutathione foliar treatments to prevent Fe chlorosis, using as positive controls soil and foliar Fe fertilisation. Medicago scutellata plants were grown in soil (5.7% CaCO 3 ) supplemented or not with 4 and 8% CaCO 3 . Two Fe(III)‐EDDHA soil treatments (5 and 10 mg Fe kg −1 ), and three foliar treatments (three applications each of...