"Halbwüste." . . "Riego." . . "Drainage" . . "Bewässerung." . . "Bewässerung" . "Drenaje." . . "Irrigation scheduling" . . "Dræning, afvanding" . . "Effizienz." . . "Irrigazione - Metodi." . . "Water management" . . "U-lande" . . "Irrigation Efficience." . . "Vandingsskema" . . "Dürre" . . "Irrigation methods" . . "Irrigation." . . "Bewässerung / Dürre." . . "Landbrug" . . "Irrigazione - Zone aride." . . "Wüste." . . "Vandingsanlæg" . . "Vandressourcestyring" . . . . "Developing countries" . . "Agriculture" . . . . . "Efficient Use of Water in Irrigation - Principles and Practices for Improving Irrigation in Arid and Semiarid Regions"@en . . . . . "The efficient use of water in irrigation : principles and practices for improving irrigation in arrid and semiarid regions" . . . . . . . "The efficient use of water in irrigation principles and practices for improving irrigation in arid and semiarid regions"@en . "The efficient use of water in irrigation principles and practices for improving irrigation in arid and semiarid regions" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "The efficient use of water in irrigation" . . . "The efficient use of water in irrigation : principles and practices for improving irrigation in arid and semiarid regions" . "The efficient use of water in irrigation : principles and practices for improving irrigation in arid and semiarid regions"@en . . . .