How efficient is the irrigation system?
Ea = [Depth of water stored in the root zone (ds) x 100
Depth of water pumped (dp) ]
where:
Ea = Average water application efficiency, %
Depth of water stored in the root zone (ds) = Average depth of water stored in the root zone, inches
Depth of water pumped (dp) = Average depth of water delivered from source, inches
ds = [“After” reading – “Before” reading]
where:
ds = Depth of water stored in the root zone
Water in root zone before irrigation 8.8 Inches
Water in root zone after irrigation 9.6 Inches
Depth of water increase in root zone 0.8 Inches
Depth of water applied 1.0 Inches
Application Efficiency 80% Percent Efficiency