Coffee production, nitrate leaching and N2O emission in Coffea arabica systems in Costa Rica according to fertilization and shade management

Harmand Jean-Michel, Chaves Victor, Cannavo Patrice, Dionisio Luis, Zeller Bernd, Hergoualc'h Kristell, Siles Pablo, Vaast Philippe, Oliver Robert, Beer John, Dambrine Etienne. 2010. Coffee production, nitrate leaching and N2O emission in Coffea arabica systems in Costa Rica according to fertilization and shade management. 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, 301-302. ISBN 978-2-909613-01-7 ESA Congress. 11, Montpellier, France, 29 Août 2010/3 Septembre 2010.

Résumé : In Costa Rica, heavily fertilized Coffea arabica plantations grown on permeable soils under high rainfalls are one of the suspected causes of nitrate (NO3) pollution of groundwater and nitrous oxide (N2O) emissions to the atmosphere (Babbar and Zak, 1995). The inclusion of trees in coffee plantations may limit nutrient leaching by increasing nutrient uptake but may also reduce coffee production as a result of competition for light, water and soil nutrients. Whereas many coffee agroforestry systems (AFS) in Costa Rica are still conventionally managed (using high mineral N fertilization rates), alternative technologies using organic fertilizers and leguminous shade trees are extending. This study presents some results on the effects of N fertilization and shade management on coffee production, permanent biomass accumulation, NO3- leaching and N2O emissions, in contrasting Costa Rican coffee systems.

Mots-clés Agrovoc : Coffea arabica, agroforesterie, azote

Mots-clés géographiques Agrovoc : Costa Rica

Classification Agris : F08 - Systèmes et modes de culture
F04 - Fertilisation
P36 - Érosion, conservation et récupération des sols

Auteurs et affiliations

• Harmand Jean-Michel, CIRAD-PERSYST-UPR Ecosystèmes de plantations (FRA) ORCID: 0000-0002-8065-106X
• Chaves Victor, ICAFE (CRI)
• Cannavo Patrice
• Dionisio Luis, ICAFE (CRI)
• Zeller Bernd, INRA (FRA)
• Hergoualc'h Kristell, CIFOR (IDN)
• Siles Pablo, CATIE (CRI)
• Vaast Philippe, CIRAD-PERSYST-UPR Ecosystèmes de plantations (IND)
• Oliver Robert
• Beer John, CATIE (CRI)
• Dambrine Etienne, INRA (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/557246/)

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