Impact of Evaluation of Different Irrigation Methods with Sensor System on Water Consumptive Use and Water Use Efficiency for Maize Yield

水资源与保护(英文) Pub Date : 2021-01-01 DOI:10.4236/jwarp.2021.1311045

Thamer Thamer, Nadine Nassif, A. Almaeini, N. Al-Ansari

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引用次数: 1

Abstract

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 and the lowest for subsurface drip with emitter deep at 20 cm 313.93 and 293.50 mm∙season 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 and the lowest value for furrow irrigation was 1.12 and 1.20 kg∙m for the 2016 and 2017 seasons; respectively.

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不同灌溉方式对玉米耗水利用和水分利用效率的影响

传感器系统是干旱半干旱区现代灌溉管理的重要手段之一，是水作为作物生产的限制因素之一。该研究于2016年和2017年在巴格达西南15公里处的Al-Yousifya进行。对沟灌、地表滴灌和地下滴灌方式的均匀系数、均匀分布和施用效率进行了评价，2016年和2017年的均匀系数分别为(98、97和89)%和(97、96和88)%;分别。在10、20、30 cm深度下，利用传感器系统根据根际深度控制土壤的体积含水量。结果表明:2016年和2017年两季沟沟耗水高度分别为707.91和689.69 mm∙季，地下滴灌最小，滴头深度为20 cm，分别为313.93和293.50 mm∙季;分别。2016年和2017年季节，20 cm深度滴灌地下水分利用效率最高，分别为2.71和2.99 kg∙m，沟灌最低，分别为1.12和1.20 kg∙m;分别。

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水资源与保护(英文)

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