تقييم آداء انظمة ري مختلفة و أثرها في حاصل ثلاث أصناف رز باستعمال الري الذكي

الملخص EN

A field experiment was conducted to evaluate the performance of different irrigation systems and their impact on the yield of three rice varieties using smart irrigation in one of the research fields of the College of Agricultural Engineering Sciences at the University of Baghdad in a sandy loam soil for agricultural season of 2021.

Surface drip irrigation, sprinkler irrigation, surface irrigation (basin) system and the crop varieties included Anbar 33, furat and Jasmine.

Soil homogeneity coefficient, sprinkler service area, added depth of water and rice yield were studied in this research.

Nested design under complete randomized block design(RCBD) with three replications was used in this experiment.

Least significant difference was used at LSD=0.05 to compare between the mean of the treatments.

The results showed that a significant effect of irrigation systems on the studied indicators, as the subsurface drip irrigation system outperformed by obtaining the highest moisture homogeneity reached 95.3% , while the irrigation system obtained the highest yield of rice which reached 3.424 tons.

h-1 and the highest added depth of water stood 10.51 cm.

As for the area of service of the sprinkler, it was not affected by the irrigation systems.

The cultivars of rice crop did not significantly affect homogeneity coefficient and service area of wetness.

Jasmine cultivar excelled in obtaining the highest sprinkler discharge, which amounted to 4.16 m2, while the Anbar33 variety obtained the highest depth of the added water amounted to 10.55 cm and a maximum yield of rice stood 3.873 tons.

h-1.

The effect of the interaction between subsurface drip irrigation system and with the Anbar 33 variety was excelled in obtaining the highest homogeneity amounted to 96.3% and the highest depth of the added water reached 11.36 cm, while the surface irrigation system with Jasmine cultivar achieved the lowest coefficient of homogeneity which reached 79.0% .

The interaction between touristic irrigation and Anbar 33 cultivar had the highest rice yield of 4.043 tons.

h-1 and the highest added depth of water was 11.36 cm.