Dusty brown spots on upper leaves. Stunted plants.  Tillering decreases.  Increase spikelet. Sterility leaf base of younger leaves, become chlorotic brown and blotches streaks on lower leaves.  Lower leafs are chlorotic particularly at the base.

Broadcast ZnSO4 in nursery seedbed.  Dip seedlings or presoak seeds in a 2-4% ZnO suspension.  Apply 5-10 kg Zn ha-1 as Zn sulfate, apply 10-25 kg ha-1 ZnSO4 7 H2O. Apply 0.5-1.5 % ZnSO4 ha-1 as a foliar spray.  At tillering (25-30 DAT), 2-3 repeated applications at intervals of 10-14 days.  Zn chelates (e.g., Zn – EDTA) can be used for foliar application.