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Impact of Evaluation of Different Irrigation Methods with Sensor System on water consumptive use and water use Efficiency for Maize Yield

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Journal of water Resource and Protection 2021年第11期13卷 835-854页

作者： Thamer Thamer Nadine Nassif Ayad Almaeini Nadhir Al-Ansari Ecole Doctorale en Sciences et Technologie Lebanese University Rafic Hariri-Haddath Lebanon Faculty of Agronomy and Veterinary Sciences Environment and Natural Resources Department Lebanese University Dekwaneh Beirut Lebanon College of Agricultural Engineering Sciences Baghdad University Baghdad Iraq Department of Civil Environmental and Natural Resources Engineering Lule University of Technology Lule Sweden

The sensor system is one of the modern and important methods of irrigation management in arid and semi-arid areas, which is water as the limiting factor for crop production. The study was applied for 2016 and 2017 seasons out in Al-Yousifya, 15 km Southwest of Baghdad. A study was conducted to evaluate coefficient uniformity, uniformity distribution and application efficiency for furrow, surface drip and subsurface drip irrigation methods and it was (98, 97 and 89)% and (97, 96 and 88)% for 2016 and 2017 seasons;respectively. And control the volumetric moisture content according to the rhizosphere depth for depths of 10, 20 and 30 cm by means of the sensor system. The results indicated that the height consumptive water use of furrow 707.91 and 689.69 mm·season-1 and the lowest for subsurface drip with emitter deep at 20 cm 313.93 and 293.50 mm·season-1 for 2016 and 2017 seasons;respectively. As well, the highest value of water use efficiency for subsurface in drip irrigation at a depth of 20 cm, was 2.71 and 2.99 kg·m-3 and the lowest value for furrow irrigation was 1.12 and 1.20 kg·m-3 for the 2016 and 2017 seasons;respectively.

关键词： Irrigation Methods Application Efficiency water consumptive use water use Efficiency Maize

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