Spraying of Onion

what should be spread after transplanting of onion

3-4 days later after transplanting drenching should be done with Trichoderma viride @2kg/200 liters of water and applied over a one-acre area.

After 8-10 days of drenching, spray mancozeb 75% wp (M-45, Abic)@30g/10 liters of water.