Comparacao de extratores químicos de fósforo en solos do sul da Bahia
The available phosphorus in 10 soils samples taken from the Southern region of Bahia was measured by the sulfomolibdic colorimetric method using Mehlich (North Carolina), Egner-Riehm, Truog and modified Olsen and Olsen as extractors. At he same time the reactions of these soils to phosphorus fertili...
| Autores principales: | , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Portugués |
| Publicado: |
Instituto Interamericano de Cooperación para la Agricultura (IICA)
2025
|
| Materias: | |
| Acceso en línea: | https://repositorio.catie.ac.cr/handle/11554/13069 |
| _version_ | 1854966185371631616 |
|---|---|
| author | Cabala Rosand, F. Percy M. Santana, Ma. Bernadeth |
| author_browse | Cabala Rosand, F. Percy M. Santana, Ma. Bernadeth |
| author_facet | Cabala Rosand, F. Percy M. Santana, Ma. Bernadeth |
| author_sort | Cabala Rosand, F. Percy |
| collection | Repositorio CATIE |
| description | The available phosphorus in 10 soils samples taken from the Southern region of Bahia was measured by the sulfomolibdic colorimetric method using Mehlich (North Carolina), Egner-Riehm, Truog and modified Olsen and Olsen as extractors. At he same time the reactions of these soils to phosphorus fertilization was evaluated through pot experiments conducted under greenhouse conditions using cacao seedlings as the indicator plant. A complete randomized experiment with four replications was used and phosphorus was applied at the rate of 0, 75, 150 and 225 ppm. The dry weights of aerial parts and roots of cocoa seedlings were obtained and analyzed 105 days after emergence. The chemical extractants showed different capacities as follows: Truog major Olsen modified major Olsen major Egner-Riehm major Mehlich. In 6 of the 10 soils there was an increase in seedling dry weight in both roots and aerial parts due to the additon of phosphorus. The correlation coefficients between dry weights of the aerial parts without P treatments and P extracted by different extractants showed the following decreasing order: Truog (r=0.8252*) major Egner-Riehm (r=0.8200*) major Olsen modified (r=0.7900*) major Olsen (r=0.7760*) major Mehlich (r=0.7000 NS). There was low association between variables when root growth was considered. |
| format | Artículo |
| id | RepoCATIE13069 |
| institution | Centro Agronómico Tropical de Investigación y Enseñanza |
| language | Portugués |
| 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 | RepoCATIE130692025-09-25T19:25:32Z Comparacao de extratores químicos de fósforo en solos do sul da Bahia Cabala Rosand, F. Percy M. Santana, Ma. Bernadeth Suelo Theobroma cacao||Theobroma cacao||Theobroma cacao||Theobroma cacao Fósforo||phosphorus||Fósforo||phosphore Disponibilidad de nutrientes||nutrient availability||disponibilidade de nutriente||disponibilité d'élément nutritif Muestreo||sampling||amostragem||échantillonnage Análisis del suelo||soil analysis||análise do solo||analyse de sol Brasil||Brazil||Brasil||Brésil Sede Central The available phosphorus in 10 soils samples taken from the Southern region of Bahia was measured by the sulfomolibdic colorimetric method using Mehlich (North Carolina), Egner-Riehm, Truog and modified Olsen and Olsen as extractors. At he same time the reactions of these soils to phosphorus fertilization was evaluated through pot experiments conducted under greenhouse conditions using cacao seedlings as the indicator plant. A complete randomized experiment with four replications was used and phosphorus was applied at the rate of 0, 75, 150 and 225 ppm. The dry weights of aerial parts and roots of cocoa seedlings were obtained and analyzed 105 days after emergence. The chemical extractants showed different capacities as follows: Truog major Olsen modified major Olsen major Egner-Riehm major Mehlich. In 6 of the 10 soils there was an increase in seedling dry weight in both roots and aerial parts due to the additon of phosphorus. The correlation coefficients between dry weights of the aerial parts without P treatments and P extracted by different extractants showed the following decreasing order: Truog (r=0.8252*) major Egner-Riehm (r=0.8200*) major Olsen modified (r=0.7900*) major Olsen (r=0.7760*) major Mehlich (r=0.7000 NS). There was low association between variables when root growth was considered. 2025-06-27T17:14:54Z 2025-06-27T17:14:54Z 1972-01-01 Artículo https://repositorio.catie.ac.cr/handle/11554/13069 openAccess pt Turrialba; Vol. 22, no. 1 8 application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| spellingShingle | Suelo Theobroma cacao||Theobroma cacao||Theobroma cacao||Theobroma cacao Fósforo||phosphorus||Fósforo||phosphore Disponibilidad de nutrientes||nutrient availability||disponibilidade de nutriente||disponibilité d'élément nutritif Muestreo||sampling||amostragem||échantillonnage Análisis del suelo||soil analysis||análise do solo||analyse de sol Brasil||Brazil||Brasil||Brésil Sede Central Cabala Rosand, F. Percy M. Santana, Ma. Bernadeth Comparacao de extratores químicos de fósforo en solos do sul da Bahia |
| title | Comparacao de extratores químicos de fósforo en solos do sul da Bahia |
| title_full | Comparacao de extratores químicos de fósforo en solos do sul da Bahia |
| title_fullStr | Comparacao de extratores químicos de fósforo en solos do sul da Bahia |
| title_full_unstemmed | Comparacao de extratores químicos de fósforo en solos do sul da Bahia |
| title_short | Comparacao de extratores químicos de fósforo en solos do sul da Bahia |
| title_sort | comparacao de extratores quimicos de fosforo en solos do sul da bahia |
| topic | Suelo Theobroma cacao||Theobroma cacao||Theobroma cacao||Theobroma cacao Fósforo||phosphorus||Fósforo||phosphore Disponibilidad de nutrientes||nutrient availability||disponibilidade de nutriente||disponibilité d'élément nutritif Muestreo||sampling||amostragem||échantillonnage Análisis del suelo||soil analysis||análise do solo||analyse de sol Brasil||Brazil||Brasil||Brésil Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/13069 |
| work_keys_str_mv | AT cabalarosandfpercy comparacaodeextratoresquimicosdefosforoensolosdosuldabahia AT msantanamabernadeth comparacaodeextratoresquimicosdefosforoensolosdosuldabahia |