Adding a diversity of legumes to a crop decision-support system: Maintaining satisfactory accuracy while keeping the model simple
In: ISSN: 1161-0301 ; European Journal of Agronomy ; https://institut-agro-dijon.hal.science/hal-04288580 ; European Journal of Agronomy, 2023, 151, pp.art. 126999. ⟨10.1016/j.eja.2023.126999⟩ ; https://www.sciencedirect.com/science/article/pii/S1161030123002678, 2023
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Zugriff:
International audience ; In a context of economic and environmental concerns in agriculture, legumes appear to be suitable alternative crops to diversify current cropping systems and reduce their dependence on synthetic nitrogen (N) fertiliser and protein from imported soya bean. However, legume-based cropping systems may increase N losses through nitrate leaching if the N available from legumes does not coincide with subsequent crop requirements. To help agricultural advisers manage N in these systems, we adapted the decision-support system Syst’N®, designed to assess N losses in cropping systems, to simulate three annual and one perennial legume crops: pea, faba bean, soya bean and lucerne. To this end, we adapted and simplified existing submodels of legume functioning to include them in Syst’N, to keep the latter simple. We adapted the submodels “BNF” (i.e. biological N fixation) from the STICS model and “dormancy” from the CropSyst model. We also added the ability to enter the flowering date to improve predictions (improvement in N fixation’s rRMSE from 57% to 41% and EF from 0.57 to 0.77). The equations and associated parameter set developed for the four legume crops yielded satisfying predictions of crop biomass (rMBE = 9%, EF = 0.82, rRMSE = 39%) and N content (rMBE = 5%, EF = 0.76, rRMSE = 37%). These performances support the philosophy of Syst’N® that requires minimising the number of additional parameters for users when representing new crops or processes.
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Adding a diversity of legumes to a crop decision-support system: Maintaining satisfactory accuracy while keeping the model simple
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Autor/in / Beteiligte Person: | Bedu, Marine ; Lefèvre, L. ; Dupont, Aurelien ; Dubrulle, Pascal ; Reau, Raymond ; Debaeke, Philippe ; Guinet, Maé ; Jeuffroy, Marie-Hélène ; Maury, Pierre ; Schneider, A. ; Schoving, Céline ; Thiébeau, P. ; Voisin, Anne-Sophie ; Parnaudeau, Virginie ; Sol Agro et hydrosystème Spatialisation (SAS) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Rennes Angers ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) ; BioEcoAgro - UMR transfrontalière INRAE 1158 ; Université d'Artois (UA)-Université de Liège-Université de Picardie Jules Verne (UPJV)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-JUNIA (JUNIA) ; Université catholique de Lille (UCL)-Université catholique de Lille (UCL) ; Agronomie ; AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ; AGroécologie, Innovations, teRritoires (AGIR) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ; Dijon, Agroécologie ; Université de Bourgogne (UB)-Université Bourgogne Franche-Comté COMUE (UBFC)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon ; Inovia, Terres ; Fractionnement des AgroRessources et Environnement (FARE) ; Université de Reims Champagne-Ardenne (URCA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ; We thank the French Ministry of Agriculture and Food and the French Biodiversity Office, which funded this study. |
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Zeitschrift: | ISSN: 1161-0301 ; European Journal of Agronomy ; https://institut-agro-dijon.hal.science/hal-04288580 ; European Journal of Agronomy, 2023, 151, pp.art. 126999. ⟨10.1016/j.eja.2023.126999⟩ ; https://www.sciencedirect.com/science/article/pii/S1161030123002678, 2023 |
Veröffentlichung: | HAL CCSD ; Elsevier, 2023 |
Medientyp: | academicJournal |
ISBN: | 978-1-161-03012-9 (print) ; 1-161-03012-3 (print) |
DOI: | 10.1016/j.eja.2023.126999 |
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