The “blind-ear” as a Cu deficiency symptom in wheat on upland soils in the hilly area of Zhejiang Province was discussed in this paper.Through 3 years of field experiments,it was elucidated that “blind-ear” in wheat plant appeared due to the low level of available Cu in the soils,and the critical value 3 mg/kg for total Cu in the plant at grain filling stage and 1 mg/kg for available Cu(0.1 M HCl)in the soils.A basal dressing of 30 kg/ha of Cu sulfate to the soils could completely eliminate Cu deficiency symptoms,obtain normal grain yield and have residual effect for at least 3 years.
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Citation: . 1992. Study on “Blind—Ear”——Copper Deficiency Symptom in Wheat on Subtropic Hill Soils. Pedosphere. 2(1): 85-92.
