In this paper, we develop an agro-economic model to plan irrigation interventions. Specifically, we set up an economic optimization model that incorporates typical crop-soil-water physical relationships. The approach described in the paper offers a straightforward estimating procedure that allows to shift from the conventional maximum yield paradigm to drive the irrigation advice to a gross income maximization paradigm. The paper focuses on analyzing the very first implication of such approach at the crop level, explaining the way how irrigation costs contribute influencing the irrigation advice. An empirical example is provided to show the procedure used to nest the developed method into an existing crop-water model and to show its practical implication on the irrigation advise. A discussion follows on what the described approach differs from other recent approaches developed in the field of irrigation scheduling and on how the scope of application of the method can be extended beyond the farm level. The paper concludes highlighting pitfall and suggesting possible solution to further improve the quality of the irrigation advise.

在本文中，我们建立了一个农业经济模型来计划灌溉措施。具体来说，我们建立了一个经济优化模型，该模型结合了典型的作物-土壤-水的物理关系。本文中描述的方法提供了一种简单的估算程序，该程序允许从常规的最大产量范式转变为驱动灌溉建议到总收入最大化范式。本文着重分析这种方法在作物一级的初衷，解释灌溉成本如何影响灌溉建议的方式。提供了一个经验示例，以说明将开发的方法嵌套到现有的作物水模型中的过程，并显示其对灌溉建议的实际意义。接下来讨论的是所描述的方法与灌溉调度领域中开发的其他最新方法有何不同，以及如何将该方法的应用范围扩展到农场之外。本文总结了突出的陷阱并提出了进一步提高灌溉建议质量的可能解决方案。