Biofertilization increases soil organic carbon concentrations: results of a meta-analysis

Protecting and building soil carbon has become a global policy priority, and novel agronomic fertilization practices may contribute to soil protection and climate-smart agriculture. The application of microbial inoculants (biofertilizers) is considered beneficial for soil and climate -smart agricult...

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Main Authors: Berta Singla Just, Evan Alexander Netherton Marks, Laura Roquer-Beni, Laia Llenas, Sergio Ponsà, Rosa Vilaplana
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:International Journal of Agricultural Sustainability
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/14735903.2024.2361578
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author Berta Singla Just
Evan Alexander Netherton Marks
Laura Roquer-Beni
Laia Llenas
Sergio Ponsà
Rosa Vilaplana
author_facet Berta Singla Just
Evan Alexander Netherton Marks
Laura Roquer-Beni
Laia Llenas
Sergio Ponsà
Rosa Vilaplana
author_sort Berta Singla Just
collection DOAJ
description Protecting and building soil carbon has become a global policy priority, and novel agronomic fertilization practices may contribute to soil protection and climate-smart agriculture. The application of microbial inoculants (biofertilizers) is considered beneficial for soil and climate -smart agriculture. Therefore, an exhaustive meta-analysis of biofertilization studies was carried out worldwide to quantify the benefits of microbial inoculants on SOC concentration. Based on 59 studies and 267 observations, was found that biofertilizers significantly increased SOC concentration by an average of 0.44 g C kg−1 soil. All biofertilizer types were estimated to contribute positively to SOC (0.18–0.70 g C kg−1soil), but only cyanobacteria, mixtures of organisms, mycorrhizal fungi, and nitrogen fixers were statistically significant. In terms of crop type, results were significant and positive for cereals, fruits, legumes and root/tuber crops (0.44–0.82 g C kg−1soil). A significant positive linear relationship was observed between crop yield and SOC changes, supporting the notion that greater productivity helps explain SOC increases, accounting for 7% of the dataset variability. This study provides the first evidence from a global assessment that biofertilizer use is associated with an augmented terrestrial agricultural organic carbon sink contributing to soil protection and food security where climate-smart solutions are sought.
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spelling doaj-art-fb08f6ec17f44375864042faab01bb1f2025-01-06T14:27:41ZengTaylor & Francis GroupInternational Journal of Agricultural Sustainability1473-59031747-762X2024-12-0122110.1080/14735903.2024.2361578Biofertilization increases soil organic carbon concentrations: results of a meta-analysisBerta Singla Just0Evan Alexander Netherton Marks1Laura Roquer-Beni2Laia Llenas3Sergio Ponsà4Rosa Vilaplana5BETA Technological Center, TECNIO Network, University of Vic—Central University of Catalonia, Vic, SpainCentro de Investigación e Innovación Agroalimentaria y Agroambiental (CIAGRO-UMH), Universidad Miguel Hernández, Alicante, SpainCREAF (Centre for Ecological Research and Forestry Applications), Bellaterra, SpainBETA Technological Center, TECNIO Network, University of Vic—Central University of Catalonia, Vic, SpainBETA Technological Center, TECNIO Network, University of Vic—Central University of Catalonia, Vic, SpainBETA Technological Center, TECNIO Network, University of Vic—Central University of Catalonia, Vic, SpainProtecting and building soil carbon has become a global policy priority, and novel agronomic fertilization practices may contribute to soil protection and climate-smart agriculture. The application of microbial inoculants (biofertilizers) is considered beneficial for soil and climate -smart agriculture. Therefore, an exhaustive meta-analysis of biofertilization studies was carried out worldwide to quantify the benefits of microbial inoculants on SOC concentration. Based on 59 studies and 267 observations, was found that biofertilizers significantly increased SOC concentration by an average of 0.44 g C kg−1 soil. All biofertilizer types were estimated to contribute positively to SOC (0.18–0.70 g C kg−1soil), but only cyanobacteria, mixtures of organisms, mycorrhizal fungi, and nitrogen fixers were statistically significant. In terms of crop type, results were significant and positive for cereals, fruits, legumes and root/tuber crops (0.44–0.82 g C kg−1soil). A significant positive linear relationship was observed between crop yield and SOC changes, supporting the notion that greater productivity helps explain SOC increases, accounting for 7% of the dataset variability. This study provides the first evidence from a global assessment that biofertilizer use is associated with an augmented terrestrial agricultural organic carbon sink contributing to soil protection and food security where climate-smart solutions are sought.https://www.tandfonline.com/doi/10.1080/14735903.2024.2361578Soil organic carboncarbon sequestrationsustainable agriculturesoil qualitybiofertilizerscrop production
spellingShingle Berta Singla Just
Evan Alexander Netherton Marks
Laura Roquer-Beni
Laia Llenas
Sergio Ponsà
Rosa Vilaplana
Biofertilization increases soil organic carbon concentrations: results of a meta-analysis
International Journal of Agricultural Sustainability
Soil organic carbon
carbon sequestration
sustainable agriculture
soil quality
biofertilizers
crop production
title Biofertilization increases soil organic carbon concentrations: results of a meta-analysis
title_full Biofertilization increases soil organic carbon concentrations: results of a meta-analysis
title_fullStr Biofertilization increases soil organic carbon concentrations: results of a meta-analysis
title_full_unstemmed Biofertilization increases soil organic carbon concentrations: results of a meta-analysis
title_short Biofertilization increases soil organic carbon concentrations: results of a meta-analysis
title_sort biofertilization increases soil organic carbon concentrations results of a meta analysis
topic Soil organic carbon
carbon sequestration
sustainable agriculture
soil quality
biofertilizers
crop production
url https://www.tandfonline.com/doi/10.1080/14735903.2024.2361578
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