Theodor Friedrich
Agricultural Engineering Branch
FAO
Viale delle Terme di Caracalla
I-00100 Rome, Italy
Tel: (+39) 065705-5694 Fax: (+39) 065705-6798
Jose Benites
Technical Officer
Land and Plant Nutrition Management Service
Land and Water Development Division
FAO
Viale delle Terme di Caracalla
I-00100 Rome, Italy
Tel: (+39) 065705-4825 Fax: (+39) 065705-6472