Faculty of Science, Universite Moulay Ismail, P. 11201 Zitoune, Meknes, Morocco.
Environ Sci Pollut Res Int. 2020 Dec;27(35):44325-44332. doi: 10.1007/s11356-020-10299-w. Epub 2020 Aug 6.
Drip irrigation is of prime importance from several points of view as the most effective and reliable method. Nevertheless, emitter clogging is the major problem related to this technology. Furthermore, pressure compensating button emitters are widely used considering their advantages resulting from the uniform distribution of water, reduction of evaporation, and deep percolation. In the present study, we report on four pressures compensating button emitters and their resistance to the clogging. Our research objectives incorporate two aspects; executing a 980-h experiment of drip irrigation by taking into consideration the temperature calibration equation, and evaluating the performance of the emitters by using the following four parameters: the relative average discharge (Dra), coefficient of uniformity (CU), emitter uniformity (EU), and the flow rate variation (q). Thus, analyzing the evaluation of those parameters provides the potential of choosing emitters that have a high resistance to the clogging. The main conclusion of this research effort is that three types of the four emitters display a satisfactory resistance to clogging.
滴灌是最有效和可靠的方法，从几个方面来看都非常重要。然而，滴头堵塞是与这项技术相关的主要问题。此外，压力补偿式滴头因其能均匀分布水分、减少蒸发和深层渗透等优点而被广泛应用。在本研究中，我们报告了四种压力补偿式滴头及其抗堵塞性能。我们的研究目标包括两个方面：执行 980 小时的滴灌实验，并考虑温度校准方程，以及使用以下四个参数评估滴头的性能：相对平均流量（Dra）、均匀系数（CU）、滴头均匀度（EU）和流量变化（q）。因此，分析这些参数的评估结果可以为选择具有高抗堵塞性能的滴头提供依据。本研究工作的主要结论是，四种滴头中的三种类型显示出了令人满意的抗堵塞性能。
