Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate
Organic inputs constitute an alternative way to replace or reduce the use of agrochemicals in order to increase sustainability and reduce negative impacts of agriculture on the environment. A consistent determination of average yields obtained with organic fertilizers in comparison to synthetic fert...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2023
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/16297 https://www.mdpi.com/2071-1050/15/2/1357 https://doi.org/10.3390/su15021357 |
| _version_ | 1855037464353177600 |
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| author | Curadelli, Franco Alberto, Marcelo Uliarte, Ernesto Martin Combina, Mariana Funes Pinter, Mariano Ivan |
| author_browse | Alberto, Marcelo Combina, Mariana Curadelli, Franco Funes Pinter, Mariano Ivan Uliarte, Ernesto Martin |
| author_facet | Curadelli, Franco Alberto, Marcelo Uliarte, Ernesto Martin Combina, Mariana Funes Pinter, Mariano Ivan |
| author_sort | Curadelli, Franco |
| collection | INTA Digital |
| description | Organic inputs constitute an alternative way to replace or reduce the use of agrochemicals in order to increase sustainability and reduce negative impacts of agriculture on the environment. A consistent determination of average yields obtained with organic fertilizers in comparison to synthetic fertilizers is necessary to assess their potential in both commercial and organic agriculture. To achieve this goal, a meta-analysis of existing scientific data of yields obtained with digestate or compost tea fertilization was performed. After a systematic bibliographic search of scientific publications, 35 final papers remained from >1000 initial results. Data of crop yield with digestate or compost tea fertilization, as well as control and synthetic fertilizer treatments, were extracted from the selected articles and used to calculate response ratios (ratios of means), obtaining 106 observations. The metaanalysis
showed that digestate fertilization produced yields 80% higher than the control. Yields were statistically similar to those obtained with conventional treatments with chemical fertilization (only 2% lower in average). The results for digestate are considered robust, as the significance did not change after conducting publication bias analyses. However, the high heterogeneity observed suggests the
existence of explanatory variables accounting for part of the observed dispersion. Subgroup analyses were conducted to determine the variation of the results of digestate across crop species and field or greenhouse experiments, while compost teas did not present adequate data quantity to obtain reliable results. According to this meta-analysis, anaerobic digestate had an acceptable performance as fertilizer for several crops at a reported application rate ranging from 100 to 480 kg N ha−1. Regarding compost tea, yields were 92% higher than the control and 10% lower than synthetic fertilization treatments, although more information is required to draw a conclusive result due to the low number of observations of this fertilizer. Further investigation is necessary to understand yield variations under different scenarios to study the influence of secondary variables and to propose management measures for producers. |
| format | info:ar-repo/semantics/artículo |
| id | INTA16297 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA162972023-12-20T12:39:39Z Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate Curadelli, Franco Alberto, Marcelo Uliarte, Ernesto Martin Combina, Mariana Funes Pinter, Mariano Ivan Cultivos Rendimiento de Cultivos Abonos Orgánicos Tratamiento Anaeróbico Crops Crop Yield Organic Fertilizers Anaerobic Treatment Bio-input Response ratio Organic inputs constitute an alternative way to replace or reduce the use of agrochemicals in order to increase sustainability and reduce negative impacts of agriculture on the environment. A consistent determination of average yields obtained with organic fertilizers in comparison to synthetic fertilizers is necessary to assess their potential in both commercial and organic agriculture. To achieve this goal, a meta-analysis of existing scientific data of yields obtained with digestate or compost tea fertilization was performed. After a systematic bibliographic search of scientific publications, 35 final papers remained from >1000 initial results. Data of crop yield with digestate or compost tea fertilization, as well as control and synthetic fertilizer treatments, were extracted from the selected articles and used to calculate response ratios (ratios of means), obtaining 106 observations. The metaanalysis showed that digestate fertilization produced yields 80% higher than the control. Yields were statistically similar to those obtained with conventional treatments with chemical fertilization (only 2% lower in average). The results for digestate are considered robust, as the significance did not change after conducting publication bias analyses. However, the high heterogeneity observed suggests the existence of explanatory variables accounting for part of the observed dispersion. Subgroup analyses were conducted to determine the variation of the results of digestate across crop species and field or greenhouse experiments, while compost teas did not present adequate data quantity to obtain reliable results. According to this meta-analysis, anaerobic digestate had an acceptable performance as fertilizer for several crops at a reported application rate ranging from 100 to 480 kg N ha−1. Regarding compost tea, yields were 92% higher than the control and 10% lower than synthetic fertilization treatments, although more information is required to draw a conclusive result due to the low number of observations of this fertilizer. Further investigation is necessary to understand yield variations under different scenarios to study the influence of secondary variables and to propose management measures for producers. EEA Mendoza Fil: Curadelli, Franco. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina Fil: Alberto, Marcelo. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina Fil: Uliarte, Ernesto Martin. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Combina, Mariana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Combina, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Funes Pinter, Mariano Ivan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Funes Pinter, Mariano Ivan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2023-12-20T12:06:32Z 2023-12-20T12:06:32Z 2023-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/16297 https://www.mdpi.com/2071-1050/15/2/1357 2071-1050 https://doi.org/10.3390/su15021357 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf MDPI Sustainability 15 (2) : 1357. (January 2023) |
| spellingShingle | Cultivos Rendimiento de Cultivos Abonos Orgánicos Tratamiento Anaeróbico Crops Crop Yield Organic Fertilizers Anaerobic Treatment Bio-input Response ratio Curadelli, Franco Alberto, Marcelo Uliarte, Ernesto Martin Combina, Mariana Funes Pinter, Mariano Ivan Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate |
| title | Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate |
| title_full | Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate |
| title_fullStr | Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate |
| title_full_unstemmed | Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate |
| title_short | Meta-Analysis of Yields of Crops Fertilized with Compost Tea and Anaerobic Digestate |
| title_sort | meta analysis of yields of crops fertilized with compost tea and anaerobic digestate |
| topic | Cultivos Rendimiento de Cultivos Abonos Orgánicos Tratamiento Anaeróbico Crops Crop Yield Organic Fertilizers Anaerobic Treatment Bio-input Response ratio |
| url | http://hdl.handle.net/20.500.12123/16297 https://www.mdpi.com/2071-1050/15/2/1357 https://doi.org/10.3390/su15021357 |
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