Abstract
Chloride may influence the incidence of corn (Zea mays L.) stalk rot, but supporting research is limited. Field experiments were conducted in 1994 and 1995 using intensive production practices to determine the effect of Cl fertilizer on stalk rot and grain yield. Treatments of 0 and 400 kg Cl ha‐1 were established using K2SO4 or KCl to supply equal amounts of potassium (K). Applied Cl increased the concentration of Cl in the ear‐leaf by more than four‐fold and reduced the incidence of stalk rot by more than half. Grain yield was significantly increased with applied Cl only in 1995. Results show that Cl, applied as KCl fertilizer, suppresses corn stalk rot and may increase grain yield.
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