El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia
This study presents some aspects of nitrogen fractionation in the volcanic ash soils of the Andean Highland of Pasto, Nariño, southwest of Colombia . In this area the average annual rainfall and temperature are 781 mm and 13°C respectively. The rock types and pyroclastic materials are of andesitic-d...
| Autores principales: | , |
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| Formato: | Artículo |
| Lenguaje: | Español |
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Instituto Interamericano de Cooperación para la Agricultura (IICA)
2025
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| Materias: | |
| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/13263 |
| _version_ | 1854966748466380800 |
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| author | Molina A, Cruz E. BLASCO L, M. |
| author_browse | BLASCO L, M. Molina A, Cruz E. |
| author_facet | Molina A, Cruz E. BLASCO L, M. |
| author_sort | Molina A, Cruz E. |
| collection | Repositorio CATIE |
| description | This study presents some aspects of nitrogen fractionation in the volcanic ash soils of the Andean Highland of Pasto, Nariño, southwest of Colombia . In this area the average annual rainfall and temperature are 781 mm and 13°C respectively. The rock types and pyroclastic materials are of andesitic-dacitic composition.
The volcanic ash soils studied have adequate amounts of total-N (about 4,000 ppm) and organic-N (95 per cent of total-N). Native fixed-NH4 was found to range from 32.4 to272.6 ppm and, on average, varied from 1.90 to 4.13 per cent of total-N, whilst exchangeable-NH4 values were between 28.0 to 78.0 ppm varying, on average, as a fraction of total-N from 1.40 to 2.43 per cent. Both, the average concentration of native fixed-NH4 and exchangeable-NH3-N ranged from 0.19 to 29.5 ppm. (on average, 0.16 to 0.32 per cent of total-N). |
| format | Artículo |
| id | RepoCATIE13263 |
| institution | Centro Agronómico Tropical de Investigación y Enseñanza |
| language | Español |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| publisherStr | Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| record_format | dspace |
| spelling | RepoCATIE132632025-07-12T22:50:52Z El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia Molina A, Cruz E. BLASCO L, M. Nitrógeno||nitrogen||Azoto||azote Suelo||soil||solo||sol Ceniza||ashes||cinza||cendre Suelo de altiplanos||hill soils||solo de outeiro||sol de colline Compuesto orgánico del nitrógeno||organic nitrogen compounds||composto orgânico nitrogenado||composé organoazoté Química del suelo||soil chemistry||Química do solo||chimie du sol Colombia||Colombia||Colômbia||Colombie Sede Central This study presents some aspects of nitrogen fractionation in the volcanic ash soils of the Andean Highland of Pasto, Nariño, southwest of Colombia . In this area the average annual rainfall and temperature are 781 mm and 13°C respectively. The rock types and pyroclastic materials are of andesitic-dacitic composition. The volcanic ash soils studied have adequate amounts of total-N (about 4,000 ppm) and organic-N (95 per cent of total-N). Native fixed-NH4 was found to range from 32.4 to272.6 ppm and, on average, varied from 1.90 to 4.13 per cent of total-N, whilst exchangeable-NH4 values were between 28.0 to 78.0 ppm varying, on average, as a fraction of total-N from 1.40 to 2.43 per cent. Both, the average concentration of native fixed-NH4 and exchangeable-NH3-N ranged from 0.19 to 29.5 ppm. (on average, 0.16 to 0.32 per cent of total-N). 2025-07-11T21:11:28Z 2025-07-11T21:11:28Z 1970-07 Artículo https://repositorio.catie.ac.cr/handle/11554/13263 openAccess es Turrialba; Vol.20, no. 3 5 páginas application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| spellingShingle | Nitrógeno||nitrogen||Azoto||azote Suelo||soil||solo||sol Ceniza||ashes||cinza||cendre Suelo de altiplanos||hill soils||solo de outeiro||sol de colline Compuesto orgánico del nitrógeno||organic nitrogen compounds||composto orgânico nitrogenado||composé organoazoté Química del suelo||soil chemistry||Química do solo||chimie du sol Colombia||Colombia||Colômbia||Colombie Sede Central Molina A, Cruz E. BLASCO L, M. El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia |
| title | El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia |
| title_full | El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia |
| title_fullStr | El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia |
| title_full_unstemmed | El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia |
| title_short | El nitrógeno en los suelos derivados de cenizas volcánicas del Altiplano de Pasto, Colombia |
| title_sort | el nitrogeno en los suelos derivados de cenizas volcanicas del altiplano de pasto colombia |
| topic | Nitrógeno||nitrogen||Azoto||azote Suelo||soil||solo||sol Ceniza||ashes||cinza||cendre Suelo de altiplanos||hill soils||solo de outeiro||sol de colline Compuesto orgánico del nitrógeno||organic nitrogen compounds||composto orgânico nitrogenado||composé organoazoté Química del suelo||soil chemistry||Química do solo||chimie du sol Colombia||Colombia||Colômbia||Colombie Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/13263 |
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