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It is worth noting that the bulb test is part of the agronomic project and is extremely important to define the best dripper flow rate and spacing so that we can guarantee a wetted area. Another important item is that, to perform this type of simulation, data from the soil water retention curve (SWRC) are required; without this data, it becomes impossible to perform this type of analysis. Another very important point is to know the initial moisture or initial tension of the soil to perform the simulation and even when performing the test in the field, because, for example, if the soil is very dry, the wet bulb opens less and goes less deep. This is explained by the fact that in this situation the macropores are empty and also a good part of the micropores, and in this case we may be underestimating the bulb. The consequence of this would be a project with more flow, since we would have to use closer spacing and drippers with more flow to guarantee the wetted area. We performed several simulations, both in subsurface and surface dripping, and the results show exactly this.