Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Italie → Assessment of AquaCrop and CropSyst models in the simulation of wheat and barley growth under different water and nitrogen regimes

Istituto Agronomico Mediterraneo di Bari (IAMB) 2008

Assessment of AquaCrop and CropSyst models in the simulation of wheat and barley growth under different water and nitrogen regimes

Assaf Wajeeh

Titre : Assessment of AquaCrop and CropSyst models in the simulation of wheat and barley growth under different water and nitrogen regimes

Auteur : Assaf Wajeeh

Etablissement de soutenance : Istituto Agronomico Mediterraneo di Bari (IAMB) - Centre international de hautes études agronomiques méditerranéennes (CIHEAM)

Diplôme : Master of science : Land and water resource management : irrigated agriculture 2008

Résumé
The performances of two crop growth models, AquaCrop and CropSyst, have been compared in the simulation of durum wheat and barley grown in a Mediterranean environment (Southern Italy) for three years (2006-2008). The experimental data included three water (rainfed, 50% and full irrigation) and two nitrogen (0 and 120 kg/ha) regimes. The models have been calibrated for both crops on the data of 2007, and validated on all treatments in both 2006 and 2008. Although AquaCrop required less input information than CropSyst, both models have shown convincing performances. In general, CropSyst simulated better biomass growth during the growing season, while AquaCrop was finer in matching biomass and yield at harvesting, particularly for water deficit and rainfed conditions. As compared to CropSyst, AquaCrop uses a more elaborated routine module to simulate the biomass development under water stress conditions : it makes AquaCrop more suitable for arid and semi-arid Mediterranean conditions.

Mots-clés : AquaCrop model ; CROPSYST MODEL TRITICUM DURUM HORDEUM VULGARE IRRIGATION DEMAND SOUTHERN ITALY

Présentation (IAMB Library)

Page publiée le 12 juin 2014, mise à jour le 1er décembre 2017