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Improved profitability by re-organising mill supply: a decision support approach

Lejars Caroline, Le Gal Pierre-Yves, Meyer Eddie, Lyne Peter W.L., Auzoux Sandrine, Siegmund Bertrand. 2005. Improved profitability by re-organising mill supply: a decision support approach. In : International Society of Sugar Cane Technologists Proceedings of the XXV Congress, 30 January - 4 February 2005, Guatemala. Ed. Hogarth. Guatemala : ATAGUA, 20-25. ISBN 99922-2-211-5 ISSCT Congress. 25, Guatemala, Guatemala, 30 Janvier 2005/4 Février 2005.

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Titre espagnol : Mejora en la rentabilidad al reorganizar el abastecimiento del ingenio : un enfoque de apoyo de decisiones

Résumé : Greater competitiveness and deregulation in the sugar industry require new forms of coordination between growers and millers to increase the efficiency and profitability of the mill supply chain. This issue involves many stakeholders along the chain, with various objectives, constraints and decision-making processes. A decision support approach has been designed in order to facilitate discussion and negotiation between the stakeholders while exploring collectively satisfactory solutions. This research has been conducted in La Réunion and South Africa where millers have to deal with numerous and diverse growers. In both cases the supply chain has been described in order to determine the stakeholders' objectives, operation processes and performances regarding the cane supply from the farms to the mill. A generic conceptual model was designed and developed in an application called MAGI©. MAGI© allows one to simulate cane flows from production units to a mill, by capturing the mill supply area structure, the mill characteristics, operators' capacities along the chain, cane quantity, cane quality curves and delivery rules for each production unit. Scenarios may vary according to each of these parameters. They are compared according to the total sugar production for the season and for each production unit. This approach has been tested by comparing rearrangements of cane supply taking into account quality variations within some mill supply areas. In these cases, production units are determined as sub-areas showing similar patterns in cane quality throughout the year. Delivery rules are then modified so as to match harvest windows per production unit with quality variations between them and with capacities along the chain. Such modifications could increase total sugar production by 3% to 5%. Thus, an organisation of the harvest schedule taking into account quality differences within a mill area can give overall benefits to the mill and the growers. The approach supports discussion between growers and millers about organisational changes by providing quantified assessment indicators. Related issues such as agronomic impacts or economic consequences of alternative cane supply management can then be raised and investigated with the stakeholders.

Mots-clés Agrovoc : canne à sucre

Classification Agris : F01 - Culture des plantes
U10 - Informatique, mathématiques et statistiques

Auteurs et affiliations

  • Lejars Caroline, CIRAD-CA-UPR Systèmes canniers (REU)
  • Le Gal Pierre-Yves, CIRAD-TERA-UPR Agriculteurs et innovations (FRA)
  • Meyer Eddie, SASRI (ZAF)
  • Lyne Peter W.L., SASRI (ZAF)
  • Auzoux Sandrine, CIRAD-CA-UPR Biostatistique (FRA) ORCID: 0000-0002-8764-8672
  • Siegmund Bertrand, CIRAD-CA-UPR Systèmes canniers (REU)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/525839/)

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