Estimating water application efficiency in irrigation checks

Summary

Equations to predict the percolation loss and water application efficiency in irrigation checks have been derived assuming the advance of the water front to be of the form l=a t ^b. Simple equations based on water distribution geometry in irrigation checks have been suggested for situations where the advance function is not known. The observed field data and the comparison with exact solution indicate that elliptic and parabolic geometry of intake profiles give a better prediction accuracy compared to the straight line intake profile previously used.