List of top Agricultural Engineering and Technology Questions on Irrigation Engineering

An irrigation stream of 30 l/s is diverted to a check basin of size \(12\text{ m} \times 10\text{ m}\). The water holding capacity of the soil is 15 %. The average soil moisture content in the root zone prior to applying water is 7 %. How long should the irrigation stream be applied in the basin to replenish the root zone moisture to its field capacity, assuming no loss due to deep percolation?
[The depth of the crop root zone may be assumed as 1.0 m. The apparent specific gravity of the root zone soil is 1.50]

Discharge rating (litres/second) of a pump operating in area A (hectares), is given by which of the following relationships?
[ Where D is the depth of application (cm), E is field application efficiency (fraction), F is irrigation interval (days), and h is operation period per day (hours) ]