Maize is very susceptible both to excess water and moisture stress. Therefore, suitable drainage should be provided for removal of excess rainwater from the field. In case of soil moisture deficiency occur due to dry spell at tasseling, silking and milking stages, irrigation becomes necessary other-wise yield is reduced substantially. A good crop of maize requires about 460 to 600 mm of water during its life span.

Depending upon availability of irrigation water, following irrigation schedule is recommended.