Vol. 6, Issue 1, Part B (2024)

A field experiment was done on one of the station fields of the Agricultural Research and Experiments Station of the College of Agriculture/University of Kirkuk. As a continuity for the autumn period of 2023 and from (26-9-2023) to (1-4-2024). The experiment was done with two factors which were type of the drip irrigation tube as the first and the level of the moisture depletion as the second. The experimentation was done in three replications the RCBD and the split plot design. The drip irrigation examined by the results showed that the nano emitter draining has the greatest effect on the T-Tape emitter. As for the highest value of water usage, this was 247.18 mm season^-1 with the rate of moisture depletion of 35%, while the lowest level was 244.78 mm season^-1 with the rate of moisture depletion of 55%. The upper limit of the total yield was 28,998 Mg ha^-1 when water stress was 35%, and it reached 20,713 Mg ha^-1 when water stress was 55%. The greatest water consumption by a land filed was 18.875 mkg-3 if a Tape drip irrigation emitter was used; while the water consumption efficiency of 35% gave me the greatest water consumption efficiency of 19.294 mkg^-3 compared to the water consumption rate of 55%, which was 13.995 mkg^-3.
When the drip irrigation system evaluated, not appeared significant difference between T-tape and Nano emitters for hydraulic characteristics.