Conservation agriculture enhances soil biodiversity and fertility: Evidence from contrasting soil textures in Cambodia
2025
Srean, Pao | Lesueur, Didier | Khin, Sophary | Ngang, Channaty | Horn, Sam Art | Lo, Sreynget | Rien, Sothea | Kuok, Fidero | Martin, Robert | Ader, David R. | Bates, Ricky R. | National University of Battambang (NUBB) | AgroBio4Cam (ABC) ; National University of Battambang (NUBB) | Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) | Deakin University [Burwood] | International Center for Tropical Agriculture [Hanoï] (CIAT Asia) ; International Center for Tropical Agriculture [Colombie] (CIAT) ; Consultative Group on International Agricultural Research [CGIAR] (CGIAR)-Consultative Group on International Agricultural Research [CGIAR] (CGIAR) | Rubber Research Institute [CATAS] (RRI) ; Chinese Academy of Tropical Agricultural Sciences (CATAS) | Ministry of Industry, Science, Technology & Innovation [Phnom Penh] (MISTI) | ASR Cambodia | University of Tennessee [Chattanooga] (UTC) | Pennsylvania State University (Penn State) ; Penn State System | Cambodia Higher Education Improvement Project (Credit No. 6221-KH) | USAID Bureau for Food Security and the Feed the Future Innovation Lab for Collaborative Research on Sustainable Intensification, managed by the Kansas State University and led by the Pennsylvania State University (USAID Federal Award No.: AID-OAA-L-14–00006, Women in Agriculture Network (WAgN) Cambodia: Gender- and Ecologically-Sensitive Agriculture).
Source Agritrop Cirad (https://agritrop.cirad.fr/613401/) * Autres projets (id;sigle;titre): 6221-KH;HEIP;(KHM) Cambodia Higher Education Improvement Project//
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Afficher plus [+] Moins [-]anglais. Land use and farming practices significantly influence soil health. This three-year study evaluated the effects of transitioning from conventional tillage (CT) to conservation agriculture (CA) on soil properties and fauna communities in vegetable production systems in Battambang (clay loam) and Siem Reap (sandy loam), Cambodia. Soil samples (0–20 cm) were analyzed for physicochemical properties, soil macro- and meso-fauna abundance, richness, and diversity. CA significantly improved soil fertility, increasing nitrogen (N), phosphorus (P) and soil organic carbon. Soil mesofauna abundance, richness, and diversity increased under CA, particularly in Battambang, with Entomobryomorpha, Poduromorpha, Symphypleona and Diptera showing greater abundance. While CA had positive effects in Siem Reap, the improvement was less pronounced. Soil mesofauna response to CA varied by soil type, with clay loam soils exhibiting a greater positive response than sandy loam. These findings emphasize the significance of soil type in optimizing CA practices to improve soil health and mesofauna communities in these agroecological conditions.
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