Feasibility of a guayule commodity chain in the Mediterranean region

Snoeck Didier, Chapuset Thierry, García García José, Sfeir Nisrine, Palu Serge. 2015. Feasibility of a guayule commodity chain in the Mediterranean region. Industrial Crops and Products, 75 (B), n.spéc. Advances in Industrial Crops and Products Worldwide: AAIC 2014 international conference : 159-164. Association for the Advancement of Industrial Crops International Conference, Athènes, Grèce, 13 Septembre 2014/19 Septembre 2014.

https://doi.org/10.1016/j.indcrop.2015.05.008

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Quartile : Outlier, Sujet : AGRONOMY / Quartile : Q1, Sujet : AGRICULTURAL ENGINEERING

Résumé : Natural rubber demand was 11 million tons in 2014 and is expected to reach 16 million tons by 2025 according to the International Rubber Study Group (IRSG). The expected limitation of natural rubber from Hevea induced an interest for the development of alternative sources of natural rubber. Guayule (Parthenium argentatum Gray L.), being native to the Mexican Chihuahua desert, is a perennial crop of semi-arid area, with the potential of growing in the Mediterranean area. To assess the potential of guayule cultivation, CIRAD (France) and Wageningen University (The Netherlands) have conducted some on-farm guayule trials in southern Europe in partnership within the European based production and exploitation of alternative rubber and latex sources project (EU-PEARLS). Promising agronomic results have led to assess the profitability of a guayule commodity chain in the Mediterranean Europe area. Data on farming practices, biorefinery, costs of inputs were collected from the trials conducted in Spain and France, and from farmers and farmers' organizations in both countries. At farm level, different cost scenarios were tested, with guayule biomass being the sole output, with annual or biennial harvests. Our results showed that, based on a nine-year field cultivation, the farmer's breakeven point can be reached at a sale price of €147 ton−1 of dry biomass (at 12 ton ha−1). At factory level, the biorefiner needs to sell water-extracted rubber as latex. By adding solvent extraction, it is possible to extract the remaining percentage of total rubber and the resin. In such case, the biorefiner's profits rises to €691 ton−1 of extracted rubber, making guayule cultivation profitable. Bagasse sale for electricity production or wood pellets is a bonus to be considered too. Our results showed that, in these conditions, a guayule value chain in Europe could be profitable. We extrapolated the results from our experiments to other Mediterranean countrie's culture conditions. Our results showed that guayule cultivation would probably be more beneficial in the Southern Mediterranean countries, including Spain, than in the Northern countries (South of France). Introduction of guayule production in the Mediterranean region could contribute to improved sustainability in rural development projects, allow a new economic development of the regions, and contribute to provide a new sustainable crop alternative against the impacts of climate change such as longer and more severe drought stress.

Mots-clés Agrovoc : Parthenium argentatum, caoutchouc, viabilité économique, analyse économique, expérimentation, système de culture, technologie, rendement des cultures, pratique culturale

Mots-clés géographiques Agrovoc : région méditerranéenne, Europe du Sud, Espagne, France

Mots-clés complémentaires : Filière

Mots-clés libres : Guayule, Faisabilité, Méditerranée

Classification Agris : F01 - Culture des plantes
Q60 - Traitement des produits agricoles non alimentaires
E21 - Agro-industrie
E16 - Économie de la production

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

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