Abstract:
Drought is an extended period when a region notes a
deficiency in its water supply whether surface or
underground water. Rainfall behaviour in drought prone
areas is erratic and uncertain. The adverse effect of
rainfall aberration on crop growth stage at such deviation
occur suitable manipulation in crop management practices
are needed to minimize such adverse effects of abnormal
rainfall behaviour. It is essentially make provision for
supplemental irrigation during critical dry spell periods
by creating additional ground water storage wherever
necessary and store the rainfall water when the heavy
rainfall takes place and minimize the wastage of water.
The mean date of onset of effective monsoon (OEM) in
Mirzapur district varies from 30 June to 9 July and there
is moderate variation in the dates of onset of effective
monsoon in the different years. The date of withdrawal of
monsoon from 18th August to 8th September. The maximum
irrigation requirement is observed during CDS for rice
as 106.79mm at Jargo and sugarcane as 88.66mm during
dry spell.
