Calibration of the SarraH model on farmer's pearl millet (Pennisetum spp.) varieties and confrontation of model outputs to on-farm data in Diourbel district (Senegal)

Kouakou Patrice, Siéné Laopé Ambroise C., Guissé A., Muller Bertrand. 2010. Calibration of the SarraH model on farmer's pearl millet (Pennisetum spp.) varieties and confrontation of model outputs to on-farm data in Diourbel district (Senegal). In : Proceedings of Agro 2010 : the XIth ESA Congress, August 29th - September 3rd, 2010, Montpellier, France. Wery Jacques (ed.), Shili-Touzi I. (ed.), Perrin A. (ed.). Montpellier : Agropolis international, 377-378. ISBN 978-2-909613-01-7 ESA Congress. 11, Montpellier, France, 29 Août 2010/3 Septembre 2010.

Résumé : Beyond socio-economic conditions, the main obstacle to agriculture intensification in Sahelian area is the inter-annual and intra-seasonal rainfall variability because it is synonymous of risk and uncertainty (Hansen, 2005). Their impacts may cause food crisis and maintain dependency on imported cereals. This situation calls for decision support tools such as crop models for yields forecasting allowing preventing eventual crisis (Samba, 1998). Various Senegalese institutions (CERAAS, ISRA, DAPS), collaborating with CIRAD and AGRHYMET, have explored the possibility of using the SarraH©CIRAD crop model (Dingkhun et al., 2003) for yield forecasting. The objectives of this study are to characterize development features of 18 farmers' pearl millet "varieties" under optimal water and nutrient conditions aiming at model calibration, and characterize on-farm yields in Diourbel District in order to compare the model output to on-farm fields' data.

Mots-clés Agrovoc : modélisation des cultures, Pennisetum

Mots-clés géographiques Agrovoc : Sénégal

Classification Agris : U10 - Informatique, mathématiques et statistiques
F62 - Physiologie végétale - Croissance et développement
P40 - Météorologie et climatologie
F01 - Culture des plantes

Auteurs et affiliations

• Kouakou Patrice, CERAAS (SEN)
• Siéné Laopé Ambroise C., CERAAS (SEN)
• Guissé A., UCAD (SEN)
• Muller Bertrand, CIRAD-BIOS-UPR AIVA (SEN)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/557264/)

Métriques

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