Amélioration de la méthode du profil cultural pour mieux décrire la structure dans les situations en non labour

Autor: Boizard, Hubert, Peigné, Joséphine, Sasal, María, de Fátima Guimarães, Maria, Piron, Denis, Tomis, Vincent, Vian, Jean-François, Cadoux, Stéphane, Ralisch, Ricardo, Tavares Filho, João, Heddadj, Djilali, De Battista, Juan, DUPARQUE, Annie, Franchini, Julio, Roger-Estrade, Jean
Přispěvatelé: Agroressources et Impacts environnementaux (AgroImpact), Institut National de la Recherche Agronomique (INRA), ISARA-Lyon, Instituto Nacional de Tecnología Agropecuaria, Universidad Nacional de la Patagonia Austral (UNPA), State University of Londrina = Universidade Estadual de Londrina, Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Agro-Transfert Ressources et Territoires, Terres Inovia, Chambre Régionale d'Agriculture de Bretagne, EEA Concepción del Uruguay, Embrapa Soja, Agronomie, Institut National de la Recherche Agronomique (INRA)-AgroParisTech, INRA, ISTRO, ANR-11-AGRO-0004,SOFIA,Agrosystèmes et biodiversité fonctionnelle des Sols(2011), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Agrosystèmes et impacts environnementaux carbone-azote (Agro-Impact), ISARA-LYON (ISARA-LYON), State University of Londrina, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS), AgroParisTech-Institut National de la Recherche Agronomique (INRA)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Soil and Tillage Research
Soil and Tillage Research, Elsevier, 2017, 173, pp.92-103. ⟨10.1016/j.still.2016.07.007⟩
Soil and Tillage Research, 2017, 173, pp.92-103. ⟨10.1016/j.still.2016.07.007⟩
ISSN: 0167-1987
DOI: 10.1016/j.still.2016.07.007⟩
Popis: CT3 ; EnjS3 ; Département EA Conference: Workshop on Soil Structural Quality of Tropical Soils - Visual Evaluation Methods and Soil Compaction Prevention Strategies Location: Maringa, BRAZIL Date: MAY 26-29, 2014; International audience; In France, agronomists have studied the effects of cropping systems on soil structure using a field method that is based on a visual description of the soil structure. This "profil cultural" method was designed as a field diagnostic tool to identify the effects of tillage and compaction on soil structure dynamics. It is of great benefit to agronomists seeking to improve crop management and preserve soil structure and fertility. However, the "profil cultural" method was developed and has mainly been used in conventional tillage systems with regular ploughing. As there has been an increase in the use of various forms of reduced, minimum and no-tillage systems in many parts of the world, it is necessary to re-evaluate this method's ability to describe and interpret soil structure dynamics in no-till or reduced tillage. In these situations, changes in soil structure over time are mainly driven by compaction and by regeneration through natural agents (climatic conditions, root growth and macrofauna), therefore it is important to evaluate the effects of these natural processes on soil structure dynamics. These concerns have led to adaptations and amendments to the initial method based on field observations and experimental work in different cropping systems, soil types and climatic conditions. The description of crack types has been improved and a criterion of biological activity based on the visual examination of clods has been introduced. To test this modified method, a comparison with the initial method was undertaken and its ability to make diagnoses tested in five experiments in France, Brazil and Argentina. The adapted method allowed an improved assessment of the impact of cropping systems on soil functioning when natural processes were integrated into the description.
Databáze: OpenAIRE
Externí odkaz: