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首页> 外文期刊>Acta Horticulturae >Does precision irrigation help to reduce water consumption in agriculture?
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Does precision irrigation help to reduce water consumption in agriculture?

机译：精密灌溉有助于降低农业用水量吗？

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摘要

We have addressed mistakes and misconceptions often appearing in papers dealing with the rationale of water use in agriculture. We first explored main advances in water management allowing for precision irrigation in commercial orchards, and outlinedthe need for a professional management of hi-tech irrigation approaches. Then we analyzed limitations of the concept of water use efficiency (WUE), and its derivatives (intrinsic WUE, irrigation WUE), to assess the efficiency of irrigation water. We thenfocused on the two ways of using crop water productivity (CWP), i.e. as the marketable biomass or the net income per unit of water consumed by the crop. Here we addressed the difficulties of a proper use of the CWP concept by farmers and orchardists, especially when applied to super high density (SHD) fruit tree orchards (examples are given for a SHD olive orchard). Finally, we discussed on how the CWP approach to assess water saving in agriculture may yield different results depending on the scale atwhich it is used (plot vs. basin). Our findings outline the need for a more precise and rigorous use of both WUE and CWP for a correct assessment of water use in agriculture, especially in complex management systems related to the use of hi-tech irrigation.
机译：我们已经解决了往往出现在涉及农业用水理由的论文中的错误和误解。我们首先探讨了水管理的主要进展，允许在商用果园进行精确灌溉，并概述了高科技灌溉方法的专业管理。然后我们分析了水利用效率（WUE）概念的局限性，及其衍生物（内在的WUE，灌溉电力），评估灌溉水的效率。然后，我们在使用作物水生产率（CWP）的两种方式上，即作为作物消耗的每单位水的营销生物量或净收入。在这里，我们解决了农民和果园的适当使用CWP概念的困难，特别是当应用于超高密度（SHD）果树果园时（为SHD橄榄果园提供了示例）。最后，我们讨论了如何评估农业节水的CWP方法如何产生不同的结果，具体取决于它使用的规模（绘图与盆地）。我们的调查结果概述了对WUE和CWP的更精确和严谨的使用，以便对农业用水的正确评估，特别是在与使用高科技灌溉有关的复杂管理系统中。

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