Analysis of Evaluation Indicators for Furrow Irrigation Using Opportunity Time

Evaluation procedures have been developed for effective design and management of irrigation systems. Furrow irrigation is one of the main types of applying water in the field. In the present study, a new procedure for field evaluation of water distribution in furrow irrigation is proposed. For this purpose, application efficiency ( E a ), water requirement efficiency ( E r ), deep percolation (DP) and tail water ratio (TWR) have been introduced,...