Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions
Composted manure is the greatest nitrogen (N) source in organic agriculture, where the use of chemical fertilizers, except the use of rock phosphate as P source, is not allowed. The aim of this study was to evaluate the effect of the soil type and compost characteristics on the potential rates of mi...
| Autores principales: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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MDPI
2022
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/11678 https://www.mdpi.com/2073-4395/12/4/795 https://doi.org/10.3390/agronomy12040795 |
| _version_ | 1855484830159994880 |
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| author | Orden, Luciano Iocoli, Gastón Alejandro Bustamante, María Ángeles Moral, Raúl Rodríguez, Roberto A. |
| author_browse | Bustamante, María Ángeles Iocoli, Gastón Alejandro Moral, Raúl Orden, Luciano Rodríguez, Roberto A. |
| author_facet | Orden, Luciano Iocoli, Gastón Alejandro Bustamante, María Ángeles Moral, Raúl Rodríguez, Roberto A. |
| author_sort | Orden, Luciano |
| collection | INTA Digital |
| description | Composted manure is the greatest nitrogen (N) source in organic agriculture, where the use of chemical fertilizers, except the use of rock phosphate as P source, is not allowed. The aim of this study was to evaluate the effect of the soil type and compost characteristics on the potential rates of mineralization and on the kinetics of the nitrogen (N), phosphorus (P), and carbon (C) release patterns. For this, an aerobic incubation study was conducted over the course of 119 days at 25 °C using two different composts as amendments: a compost from biosolids and wood shavings (CRUB), and a compost from poultry manure with wheat straw (CSP). The composts were incorporated into two different soils of contrasting texture, sandy loam (S1) and silty clay loam (S2), at the dose of 160 kg N ha−1. Samples were collected eight times during the incubation period. The N and C dynamics were studied separately according to the different soil type. In both soils, a predominance of the nitrification process immediately after compost application was observed, showing a higher mineralization in the sandy loam soil, this trend being followed by a decrease and even an immobilization process, associated with stable organic materials such as compost. Moreover, both composts presented high contents of available P, but without exceeding 50 mg P kg−1, due to the slow release from the stable organic P fractions present in compost. The results obtained showed that despite the initial mineralization, both composts showed a significant period of N immobilization after their application into the pampean soils, which makes it necessary to anticipate their incorporation to avoid this lack period for crops. Furthermore, the application of these composts to the pampean soils implied an incorporation of available P, but with a slow release that avoided overfertilization, but also reducing N:P ratio and producing a relative deficit of N. Therefore, the results obtained suggested that it is necessary to study nutrient mineralization processes of the amendments prior to their use, according to the edaphoclimatic condition of each crop, in order to predict the release dynamics on soils and the fertilization potential to minimize potential environmental impacts. |
| format | Artículo |
| id | INTA11678 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA116782022-04-19T13:32:09Z Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions Orden, Luciano Iocoli, Gastón Alejandro Bustamante, María Ángeles Moral, Raúl Rodríguez, Roberto A. Nutrientes Suelo Enmiendas del Suelo Compost Experimentación en Laboratorio Respiración del Suelo Nutrients Soil Soil Amendments Composts Laboratory Experimentation Soil Respiration Región Pampeana Composted manure is the greatest nitrogen (N) source in organic agriculture, where the use of chemical fertilizers, except the use of rock phosphate as P source, is not allowed. The aim of this study was to evaluate the effect of the soil type and compost characteristics on the potential rates of mineralization and on the kinetics of the nitrogen (N), phosphorus (P), and carbon (C) release patterns. For this, an aerobic incubation study was conducted over the course of 119 days at 25 °C using two different composts as amendments: a compost from biosolids and wood shavings (CRUB), and a compost from poultry manure with wheat straw (CSP). The composts were incorporated into two different soils of contrasting texture, sandy loam (S1) and silty clay loam (S2), at the dose of 160 kg N ha−1. Samples were collected eight times during the incubation period. The N and C dynamics were studied separately according to the different soil type. In both soils, a predominance of the nitrification process immediately after compost application was observed, showing a higher mineralization in the sandy loam soil, this trend being followed by a decrease and even an immobilization process, associated with stable organic materials such as compost. Moreover, both composts presented high contents of available P, but without exceeding 50 mg P kg−1, due to the slow release from the stable organic P fractions present in compost. The results obtained showed that despite the initial mineralization, both composts showed a significant period of N immobilization after their application into the pampean soils, which makes it necessary to anticipate their incorporation to avoid this lack period for crops. Furthermore, the application of these composts to the pampean soils implied an incorporation of available P, but with a slow release that avoided overfertilization, but also reducing N:P ratio and producing a relative deficit of N. Therefore, the results obtained suggested that it is necessary to study nutrient mineralization processes of the amendments prior to their use, according to the edaphoclimatic condition of each crop, in order to predict the release dynamics on soils and the fertilization potential to minimize potential environmental impacts. EEA Hilario Ascasubi Fil: Orden, Luciano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Orden, Luciano. Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Iocoli, Gastón Alejandro. Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Bustamante, María Ángeles. Miguel Hernández University. Department of Agrochemistry and Environment; España Fil: Moral, Raúl. Miguel Hernández University. Department of Agrochemistry and Environment; España Fil: Rodríguez, Roberto A. Universidad Nacional del Sur. Departamento de Agronomía; Argentina 2022-04-19T13:23:39Z 2022-04-19T13:23:39Z 2022-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11678 https://www.mdpi.com/2073-4395/12/4/795 2073-4395 https://doi.org/10.3390/agronomy12040795 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 Agronomy 12 (4) : 795 (March 2022) |
| spellingShingle | Nutrientes Suelo Enmiendas del Suelo Compost Experimentación en Laboratorio Respiración del Suelo Nutrients Soil Soil Amendments Composts Laboratory Experimentation Soil Respiration Región Pampeana Orden, Luciano Iocoli, Gastón Alejandro Bustamante, María Ángeles Moral, Raúl Rodríguez, Roberto A. Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions |
| title | Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions |
| title_full | Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions |
| title_fullStr | Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions |
| title_full_unstemmed | Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions |
| title_short | Nutrient Release Dynamics in Argentinean Pampean Soils Amended with Composts under Laboratory Conditions |
| title_sort | nutrient release dynamics in argentinean pampean soils amended with composts under laboratory conditions |
| topic | Nutrientes Suelo Enmiendas del Suelo Compost Experimentación en Laboratorio Respiración del Suelo Nutrients Soil Soil Amendments Composts Laboratory Experimentation Soil Respiration Región Pampeana |
| url | http://hdl.handle.net/20.500.12123/11678 https://www.mdpi.com/2073-4395/12/4/795 https://doi.org/10.3390/agronomy12040795 |
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