In theM editerraneanregion,carefulm anagementofwater and nitrogen utilizationi sr equired to achieve high crop yieldsi nasustainablea nd economic way. Prediction models are usefult ools ford erivings ite/region-specifico ptimum management strategies fori rrigation andn itrogen use. Yield-SAFE, as imple and robust modelf or growth and resource use in agroforestrys ystems,s imulates crop yields under rainfed andi rrigated conditions. Thisp aper represents ar efined calibration with respect to

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... luxes of water, based on, data from an irrigation/fertilisation experimentw ith maizei nt he South-Easto fT urkey. The modelp erformss atisfactorily andf urther development will includede nitrogen leachingcalibrationand validation.