Evaluation of irrigation systems in the irrigated area of Chanza (Huelva)

In the irrigated area of Chanza (Huelva, Spain) there are about 1500 ha of strawberries under localized irrigation. A survey, covering 12% the farms and 20% of the area, was performed in order to characterize the farms, their water use, the cultivation techniques and crop yields and the localized irrigation systems used. Results of this survey were employed to select 20 farms for the evaluation of the irrigation systems using the procedure of Merriam and Keller (1978) modified according to local conditions. Results of the survey and evaluations of the strawberry crops are presented and the unitary water use determined. The conclusions summarize the main problems detected as well as their causes and possible solutions.