%0 Journal Article %T Effect of Irrigation System, Tillage System, and Seeding Rates on Wheat (<i>Triticum aestivum</i> L.) Growth, Grain Yield and Its Water Consumption and Efficiency %A Alaa M. Akol %A Nadine Nassif %A Khudhair Abbas Jaddoa %A Haider M. Zwain %A Kareem Radhi %A Nadhir Al-Ansari %J Engineering %P 574-594 %@ 1947-394X %D 2021 %I Scientific Research Publishing %R 10.4236/eng.2021.1311042 %X A field trial was conducted at a private farm in AL-Hashimiya district Babylon Governorate¡ªthe republic of Iraq during the 2016-2017 and 2017-2018 growing seasons. This study was conducted using two irrigation methods, sprinkler and surface irrigation, for each of them had three Tillage methods (zero-tillage, medium-tillage, deep-tillage) and each tillage system had four seeding rate of wheat yield (120, 180, 240, 300) kg&#8729;ha-1. Results indicated that the consumptive water use was 557.5 and 535.9 mm for surface irrigation and 460.9 and 442.6 mm for sprinkler irrigation in the 2016-2017 and 2017-2018 growing seasons. Sprinkler irrigation significantly increased the flag leaf area with no significant effect on plant height. However, the minimum tillage and seeding rate (240 kg&#8729;ha-1) significantly increased the plant height and flag leaf area in both growing seasons. For the grain yield, the sprinkler irrigation, minimum tillage, and seeding rate (240 kg