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BANAD: A farm model for ex ante assessment of agro-ecological innovations and its application to banana farms in Guadeloupe

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  • Blazy, Jean-Marc
  • Tixier, Philippe
  • Thomas, Alban
  • Ozier-Lafontaine, Harry
  • Salmon, Frédéric
  • Wery, Jacques

Abstract

The ex ante assessment of innovative agro-ecological innovations is a key step in the development of more sustainable crop management systems. To this end, models are useful tools because they make it possible to rapidly assess numerous innovations in different contexts. Whereas many farm optimisation models focusing on the farmer's strategic decision to adopt new crop management systems have been published, little attention has been given to the ex ante modelling of the dynamic operational impacts of innovation adoption at the farm level. BANAD, a mechanistic model for such applications, is proposed. It allows the ex ante assessment of innovative management systems including new agro-ecological techniques, while taking into account different farming contexts and policy and market conditions. It includes three components: (i) a crop management system model, (ii) a crop model (SIMBA) and (iii) a farming system model. Our results applied to the ex ante assessment of six innovative banana management systems for three contrasted farm types in Guadeloupe showed that the impacts of agro-ecological innovations, which include rotations, improved fallow, intercropping, pest-resistant cultivar, and an integrated organic system, can vary considerably according to (i) the farm type in which the innovation is integrated, (ii) the nature of the agro-ecological innovations, and (iii) the criteria considered and the temporal horizon of the assessment. Innovative intercropping systems that were effective at the field level in terms of the yield improvement and decreased pesticide use could be problematic at the farm level because they increased the workload and decreased income. The adoption of rotations or improved fallow seemed to be relevant for smallholders but could induce a critical period of 1.5-2.5Â years during which income decreased drastically. Under certain conditions of markets and subsidies, very environmentally friendly innovations that are less productive can however be economically effective.

Suggested Citation

  • Blazy, Jean-Marc & Tixier, Philippe & Thomas, Alban & Ozier-Lafontaine, Harry & Salmon, Frédéric & Wery, Jacques, 2010. "BANAD: A farm model for ex ante assessment of agro-ecological innovations and its application to banana farms in Guadeloupe," Agricultural Systems, Elsevier, vol. 103(4), pages 221-232, May.
    • Handle: RePEc:eee:agisys:v:103:y:2010:i:4:p:221-232
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    2. Jean-Marc Blazy & François Causeret & Jean-Louis Diman, 2011. "Conditions d’adoption de plantes de services agro-écologiques en rotation avec la banane aux Antilles," Post-Print hal-02809322, HAL.
    3. Ditzler, Lenora & Klerkx, Laurens & Chan-Dentoni, Jacqueline & Posthumus, Helena & Krupnik, Timothy J. & Ridaura, Santiago López & Andersson, Jens A. & Baudron, Frédéric & Groot, Jeroen C.J., 2018. "Affordances of agricultural systems analysis tools: A review and framework to enhance tool design and implementation," Agricultural Systems, Elsevier, vol. 164(C), pages 20-30.
    4. Dorey, Elodie & Cambournac, Tiphaine & Michels, Thierry & Rothe, Marie & Tixier, Philippe, 2018. "Designing new management sequences for pineapple production using the SIMPIÑA model," Agricultural Systems, Elsevier, vol. 159(C), pages 50-56.
    5. Shelenko Diana & Balaniuk Ivan & Sas Liudmyla & Malik Mykola & Matkovskyi Petro & Levandivskyi Omelian & Humeniuk Mariana, 2021. "Forecasting Of Net Profit And The Area Of Land Of Private Enterprises," Management Theory and Studies for Rural Business and Infrastructure Development, Sciendo, vol. 43(4), pages 500-516, December.
    6. Blazy, Jean-Marc & Carpentier, Alain & Thomas, Alban, 2011. "The willingness to adopt agro-ecological innovations: Application of choice modelling to Caribbean banana planters," Ecological Economics, Elsevier, vol. 72(C), pages 140-150.
    7. Leite, João Guilherme Dal Belo & Silva, João Vasco & van Ittersum, Martin K., 2014. "Integrated assessment of biodiesel policies aimed at family farms in Brazil," Agricultural Systems, Elsevier, vol. 131(C), pages 64-76.
    8. Ridier, Aude & Chaib, Karim & Roussy, Caroline, 2012. "The adoption of innovative cropping systems under price and production risks: a dynamic model of crop rotation choice," 123rd Seminar, February 23-24, 2012, Dublin, Ireland 122440, European Association of Agricultural Economists.
    9. Tarsiguel, Laura & Dorey, Elodie & Dorel, Marc & Andrieu, Nadine, 2023. "Alternative practices to pesticide use in the Guadeloupe banana belt: Do biophysical constraints limit agroecological transitions?," Agricultural Systems, Elsevier, vol. 210(C).
    10. Grechi, Isabelle & Ould-Sidi, Mohamed-Mahmoud & Hilgert, Nadine & Senoussi, Rachid & Sauphanor, Benoît & Lescourret, Françoise, 2012. "Designing integrated management scenarios using simulation-based and multi-objective optimization: Application to the peach tree–Myzus persicae aphid system," Ecological Modelling, Elsevier, vol. 246(C), pages 47-59.
    11. Cerian Gibbes & Allison L. Hopkins & Armando Inurreta Díaz & Juan Jimenez-Osornio, 2020. "Defining and measuring sustainability: a systematic review of studies in rural Latin America and the Caribbean," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(1), pages 447-468, January.

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