In the Middle East context where the water is scarce or if not expensive, we opt for the application of soil amendments on some projects. It reduces the water consumption or the daily water requirements by 30-40%. Here all plants has to be irrigated for establishment, exotic or endemic plants that are to be planted. And only in the established period that irrigation can be reduced. I find this a bit perplexing, that irrigation here is calculated on the same constant for all plants- whether it is exotic or endemic to the area.Tried talking with the irrigation engineers of having the varying constant for the exotic and endemic, but “it goes against there rule of thumb.”
