Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis
Although microbial inoculants are promoted as a strategy for improving compost quality, there is no consensus in the published literature about their efficacy. A quantitative meta-analysis was performed to estimate the overall effect size of microbial inoculants on nutrient content, humification and lignocellulosic degradation. A meta-regression and moderator analyses were conducted to elucidate abiotic and biotic factors controlling the efficacy of microbial inoculants. These analyses demonstrated the beneficial effects of microbial inoculants on total nitrogen (+30%), total phosphorus (+46%), compost maturity index (C:N ratio (-31%), humification (+60%) and the germination index (+28%). The mean effect size was -46%, -65% and -40% for cellulose, hemicellulose, and lignin respectively. However, the effect size was marginal for bioavailable nutrient concentrations of phosphate, nitrate, and ammonium. The effectiveness of microbial inoculants depends on inoculant form, inoculation time, composting method, and experimental duration. The microbial inoculant effect size was consistent under different feedstock types and experimental scales. These findings imply that microbial inoculants are important for accelerating lignocellulose degradation. Higher mean effect sizes have tended to be published in journals with higher impact factors, thus researchers should be encouraged to publish non-significant findings in order to provide a more reliable estimation of effect size and clarify doubts about the benefits of microbial inoculants for composting.
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Format: | Journal Article biblioteca |
Langue: | English |
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Elsevier
2021-04
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Sujets: | food security, agriculture, climate change, composting, nutrients, |
Accès en ligne: | https://hdl.handle.net/10568/113287 https://doi.org/10.1016/j.wasman.2021.02.043 |
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dig-cgspace-10568-1132872023-12-08T19:36:04Z Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis Nigussie, Abebe Dume, Bayu Ahmed, Milkyas Mamuye, Melkamu Ambaw, Gebermedihin Berhiun, Goytom Biresaw, Armaye Aticho, Abebayheu food security agriculture climate change composting nutrients Although microbial inoculants are promoted as a strategy for improving compost quality, there is no consensus in the published literature about their efficacy. A quantitative meta-analysis was performed to estimate the overall effect size of microbial inoculants on nutrient content, humification and lignocellulosic degradation. A meta-regression and moderator analyses were conducted to elucidate abiotic and biotic factors controlling the efficacy of microbial inoculants. These analyses demonstrated the beneficial effects of microbial inoculants on total nitrogen (+30%), total phosphorus (+46%), compost maturity index (C:N ratio (-31%), humification (+60%) and the germination index (+28%). The mean effect size was -46%, -65% and -40% for cellulose, hemicellulose, and lignin respectively. However, the effect size was marginal for bioavailable nutrient concentrations of phosphate, nitrate, and ammonium. The effectiveness of microbial inoculants depends on inoculant form, inoculation time, composting method, and experimental duration. The microbial inoculant effect size was consistent under different feedstock types and experimental scales. These findings imply that microbial inoculants are important for accelerating lignocellulose degradation. Higher mean effect sizes have tended to be published in journals with higher impact factors, thus researchers should be encouraged to publish non-significant findings in order to provide a more reliable estimation of effect size and clarify doubts about the benefits of microbial inoculants for composting. 2021-04 2021-04-12T12:37:20Z 2021-04-12T12:37:20Z Journal Article Nigussie A, Dume B, Ahmed M, Mamuye M, Ambaw G, Berhiun G, Biresaw A, Aticho A. 2021. Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis. Waste Management 125:220-234. 0956-053X https://hdl.handle.net/10568/113287 https://doi.org/10.1016/j.wasman.2021.02.043 PII-EA_CSVPartnerships en Copyrighted; all rights reserved Limited Access 220-234 Elsevier Waste Management |
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food security agriculture climate change composting nutrients food security agriculture climate change composting nutrients |
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food security agriculture climate change composting nutrients food security agriculture climate change composting nutrients Nigussie, Abebe Dume, Bayu Ahmed, Milkyas Mamuye, Melkamu Ambaw, Gebermedihin Berhiun, Goytom Biresaw, Armaye Aticho, Abebayheu Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis |
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Although microbial inoculants are promoted as a strategy for improving compost quality, there is no consensus in the published literature about their efficacy. A quantitative meta-analysis was performed to estimate the overall effect size of microbial inoculants on nutrient content, humification and lignocellulosic degradation. A meta-regression and moderator analyses were conducted to elucidate abiotic and biotic factors controlling the efficacy of microbial inoculants. These analyses demonstrated the beneficial effects of microbial inoculants on total nitrogen (+30%), total phosphorus (+46%), compost maturity index (C:N ratio (-31%), humification (+60%) and the germination index (+28%). The mean effect size was -46%, -65% and -40% for cellulose, hemicellulose, and lignin respectively. However, the effect size was marginal for bioavailable nutrient concentrations of phosphate, nitrate, and ammonium. The effectiveness of microbial inoculants depends on inoculant form, inoculation time, composting method, and experimental duration. The microbial inoculant effect size was consistent under different feedstock types and experimental scales. These findings imply that microbial inoculants are important for accelerating lignocellulose degradation. Higher mean effect sizes have tended to be published in journals with higher impact factors, thus researchers should be encouraged to publish non-significant findings in order to provide a more reliable estimation of effect size and clarify doubts about the benefits of microbial inoculants for composting. |
format |
Journal Article |
topic_facet |
food security agriculture climate change composting nutrients |
author |
Nigussie, Abebe Dume, Bayu Ahmed, Milkyas Mamuye, Melkamu Ambaw, Gebermedihin Berhiun, Goytom Biresaw, Armaye Aticho, Abebayheu |
author_facet |
Nigussie, Abebe Dume, Bayu Ahmed, Milkyas Mamuye, Melkamu Ambaw, Gebermedihin Berhiun, Goytom Biresaw, Armaye Aticho, Abebayheu |
author_sort |
Nigussie, Abebe |
title |
Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis |
title_short |
Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis |
title_full |
Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis |
title_fullStr |
Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis |
title_full_unstemmed |
Effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: A meta-analysis |
title_sort |
effect of microbial inoculation on nutrient turnover and lignocellulose degradation during composting: a meta-analysis |
publisher |
Elsevier |
publishDate |
2021-04 |
url |
https://hdl.handle.net/10568/113287 https://doi.org/10.1016/j.wasman.2021.02.043 |
work_keys_str_mv |
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1787229108191625216 |