Typology of exogenous organic matters based on chemical and biochemical composition to predict potential nitrogen mineralization

Lashermes Gwenaëlle, Nicolardot Bernard, Parnaudeau Virginie, Thuriès Laurent, Chaussod Rémi, Guillotin Marie-Laure, Lineres Monique, Mary Bruno, Metzger Laure, Morvan Thierry, Tricaud Antoine, Villette Christine, Houot Sabine. 2010. Typology of exogenous organic matters based on chemical and biochemical composition to predict potential nitrogen mineralization. Bioresource Technology, 101 (1) : 157-164.

Quartile : Q1, Sujet : AGRICULTURAL ENGINEERING / Quartile : Q1, Sujet : ENERGY & FUELS / Quartile : Q1, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Résumé : Our aim was to develop a typology predicting potential N availability of exogenous organic matters (EOMs) in soil based on their chemical characteristics. A database of 273 EOMs was constructed including analytical data of biochemical fractionation, organic C and N, and results of N mineralization during incubation of soil-EOM mixtures in controlled conditions. Multiple factor analysis and hierarchical classification were performed to gather EOMs with similar composition and N mineralization behavior. A typology was then defined using composition criteria to predict potential N mineralization. Six classes of EOM potential N mineralization in soil were defined, from high potential N mineralization to risk of inducing N immobilization in soil after application. These classes were defined on the basis of EOM organic N content and soluble, cellulose-, and lignin-like fractions. A decision tree based on these variables was constructed in order to easily attribute any EOM to 1 of the 6 classes.

Mots-clés Agrovoc : teneur en azote, disponibilité d'élément nutritif, matière organique du sol, amendement organique, minéralisation, cycle de l'azote, classification, composition chimique, fertilité du sol

Classification Agris : P35 - Fertilité du sol
P33 - Chimie et physique du sol
F04 - Fertilisation

Champ stratégique Cirad : Axe 6 (2005-2013) - Agriculture, environnement, nature et sociétés

Auteurs et affiliations

• Lashermes Gwenaëlle, INRA (FRA)
• Nicolardot Bernard, INRA (FRA)
• Parnaudeau Virginie, INRA (FRA)
• Thuriès Laurent, CIRAD-PERSYST-UPR Recyclage et risque (REU) ORCID: 0000-0002-1365-7891
• Chaussod Rémi, INRA (FRA)
• Guillotin Marie-Laure, LCA (FRA)
• Lineres Monique, INRA (FRA)
• Mary Bruno, INRA (FRA)
• Metzger Laure, RITTMO (FRA)
• Morvan Thierry, INRA (FRA)
• Tricaud Antoine, SAS Laboratoire (FRA)
• Villette Christine, LDAR (Aisne) (FRA)
• Houot Sabine, INRA (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/550945/)

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