Fertilizer adoption by smallholders in the brazilian amazon: Farm-level evidence

Morello Thiago Fonseca, Piketty Marie-Gabrielle, Gardner Toby, Parry Luke, Barlow Jos, Ferreira Joice, Tancredi Nicola S.. 2018. Fertilizer adoption by smallholders in the brazilian amazon: Farm-level evidence. Ecological Economics, 144 : pp. 278-291.

Journal article ; Article de revue à facteur d'impact
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Quartile : Outlier, Sujet : ECONOMICS / Quartile : Q1, Sujet : ENVIRONMENTAL STUDIES / Quartile : Q1, Sujet : ECOLOGY / Quartile : Q1, Sujet : ENVIRONMENTAL SCIENCES

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Economie-gestion

Abstract : Multiple constraints prevent smallholders from adopting fertilizers even with regional supply of agricultural inputs expanding and soils being weared-out. Using comprehensive farm-level data from the eastern Brazilian Amazon, we found that market proximity had a significant positive correlation with fertilizer adoption, even after controlling for liquidity, land tenure, education, experience and access to rural extension services. Nevertheless, few smallholders completely replaced nutrients from vegetation with fertilizers. Instead, we found that a hybrid system that combines nutrients from vegetation and fertilizers was approximately twice as common as exclusive fertilizer use. We suggest that the option for this diversified “nutrient portfolio” may result not only from a lack of capital or knowledge regarding return on fertilizer use, but also from the need to adapt to the economic constraints facing smallholders and minimize risk. Results indicate that a rural extension program aimed at supporting a rapid and complete replacement of ashes from vegetation by fertilizers could prove unsuccessful for Amazonian smallholders. (Résumé d'auteur)

Mots-clés Agrovoc : Petite agriculture, Petite exploitation agricole, Agriculteur, Adoption de l'innovation, Fertilisation, Engrais, Utilisation, Comportement humain, Modèle économétrique

Mots-clés géographiques Agrovoc : Brésil, Amazonie

Classification Agris : F04 - Fertilizing
E80 - Home economics and crafts
U10 - Computer science, mathematics and statistics

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

Auteurs et affiliations

  • Morello Thiago Fonseca, Universidade de São Paulo (BRA) - auteur correspondant
  • Piketty Marie-Gabrielle, CIRAD-ES-UPR GREEN (FRA) - auteur correspondant
  • Gardner Toby, Stockholm Environment Institute (SWE) - auteur correspondant
  • Parry Luke, Lancaster University (GBR)
  • Barlow Jos, Lancaster University (GBR)
  • Ferreira Joice, EMBRAPA (BRA)
  • Tancredi Nicola S., ICMBio (BRA)

Source : Cirad-Agritrop (

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