Final answer:
The deep percolation due to DU in this sprinkler irrigation system is 0 inches/day.
Step-by-step explanation:
The deep percolation due to DU can be calculated using the following equation:
Deep percolation (DP) = ETc - DU
Given that DU = 0.76 and ETc = 0.22 in/day, we can substitute these values into the equation to find the deep percolation:
DP = 0.22 - 0.76
DP = -0.54 in/day
Since deep percolation cannot be negative, the value of DP is 0 in this case.