Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P
The objective of this study was to evaluate the use anion exchange resin (Dowex 21K) as an index of P availability in 40 soils of Central America. The following determinations were undertaken, according to Cooke: 1. Initially available -kinetic- P (shaken 2 to 30 minutes) 2. Equilibration -intens...
| 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/11554/13261 |
| _version_ | 1854965525349662720 |
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| author | Palma, G. FASSBENDER, H.W. |
| author_browse | FASSBENDER, H.W. Palma, G. |
| author_facet | Palma, G. FASSBENDER, H.W. |
| author_sort | Palma, G. |
| collection | Repositorio CATIE |
| description | The objective of this study was to evaluate the use anion exchange resin (Dowex 21K) as an index of P availability in 40 soils of Central America.
The following determinations were undertaken, according to Cooke:
1. Initially available -kinetic- P (shaken 2 to 30 minutes)
2. Equilibration -intensity- P (shaken 18 hours)
3. Reserve -capacity- P (five successive extractions)
The kinetical criteria used to evaluate the dynamics of P during the first 30 minutes of contact of the soils with the resin indicated that P initially available is not a good index of measure the P absorbed by the plant.
For a group of 40 soils considered, the correlation between P adsorbed by the resin during 18 hours equlibration and the P absorbed by the tomato plants was 0.930, the correlation between reserve P measured by five successive equilibrations and absorbed P by tha plants was 0.951.
It was concluded that equilibration P and reserve P are the most significant parameters to evaluate that availability of P in the soils. Higher correlations obtained for the resin method as compared with other chemical procedures indicated that resin is better for the evaluation of P available in the soil. |
| format | Artículo |
| id | RepoCATIE13261 |
| 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 | RepoCATIE132612025-07-12T22:50:51Z Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P Palma, G. FASSBENDER, H.W. Fósforo||phosphorus||Fósforo||phosphore Suelo||soil||solo||sol Química del suelo||soil chemistry||Química do solo||chimie du sol América Central||Central America||América Central||Amérique centrale Resina||resins||resina||résine Anión||anions||anion||anion Estado nutricional||nutritional status||estado da nutrição||état nutritionnel Sede Central The objective of this study was to evaluate the use anion exchange resin (Dowex 21K) as an index of P availability in 40 soils of Central America. The following determinations were undertaken, according to Cooke: 1. Initially available -kinetic- P (shaken 2 to 30 minutes) 2. Equilibration -intensity- P (shaken 18 hours) 3. Reserve -capacity- P (five successive extractions) The kinetical criteria used to evaluate the dynamics of P during the first 30 minutes of contact of the soils with the resin indicated that P initially available is not a good index of measure the P absorbed by the plant. For a group of 40 soils considered, the correlation between P adsorbed by the resin during 18 hours equlibration and the P absorbed by the tomato plants was 0.930, the correlation between reserve P measured by five successive equilibrations and absorbed P by tha plants was 0.951. It was concluded that equilibration P and reserve P are the most significant parameters to evaluate that availability of P in the soils. Higher correlations obtained for the resin method as compared with other chemical procedures indicated that resin is better for the evaluation of P available in the soil. 2025-07-11T19:54:28Z 2025-07-11T19:54:28Z 1970-07 Artículo https://repositorio.catie.ac.cr/handle/11554/13261 openAccess es Turrialba; Vol.20, no. 3 9 páginas application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| spellingShingle | Fósforo||phosphorus||Fósforo||phosphore Suelo||soil||solo||sol Química del suelo||soil chemistry||Química do solo||chimie du sol América Central||Central America||América Central||Amérique centrale Resina||resins||resina||résine Anión||anions||anion||anion Estado nutricional||nutritional status||estado da nutrição||état nutritionnel Sede Central Palma, G. FASSBENDER, H.W. Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P |
| title | Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P |
| title_full | Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P |
| title_fullStr | Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P |
| title_full_unstemmed | Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P |
| title_short | Estudio del fósforo en suelos de América Central. V. Uso de resinas de intercambio para evaluar la disponibilidad de P |
| title_sort | estudio del fosforo en suelos de america central v uso de resinas de intercambio para evaluar la disponibilidad de p |
| topic | Fósforo||phosphorus||Fósforo||phosphore Suelo||soil||solo||sol Química del suelo||soil chemistry||Química do solo||chimie du sol América Central||Central America||América Central||Amérique centrale Resina||resins||resina||résine Anión||anions||anion||anion Estado nutricional||nutritional status||estado da nutrição||état nutritionnel Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/13261 |
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