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Surface Irrigation Designs with Variable Slope

Last Updated: 24 February 2014          For: OptiSurface Designer V1.4 and higher


Can we design with variable slope and still make good surface irrigation?

For furrow irrigation, our basic policy is that we try to keep the slopes as uniform as possible.  However, the slopes can vary significantly and not significantly affect irrigation uniformity and efficiency. 

Our rule of thumb is that the maximum slope should be no more than double the minimum slope to promote uniform irrigation. This cannot be achieved always and the farmer is often happy to get any water on the field to improve production.

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