Adsorcao de nitrato em Latossolos sob vegetacao de cerrado
Adsorption of nitrate by nine oxisols collected in cerrados (savannah) from Brazil was measured in solutions containing graded amounts of KNO, Nitvate adsorp-tion for B-horizons varied from 0.11 mmol/100 g for soil suspensions of pH values ranging from 4.4 to 5.0. The amount adsorbed increased with...
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| Formato: | Artículo |
| Lenguaje: | Portugués |
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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/11554/12883 |
| _version_ | 1854965825910341632 |
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| author | Velloso, Ary Carlos Xavier |
| author_browse | Velloso, Ary Carlos Xavier |
| author_facet | Velloso, Ary Carlos Xavier |
| author_sort | Velloso, Ary Carlos Xavier |
| collection | Repositorio CATIE |
| description | Adsorption of nitrate by nine oxisols collected in cerrados (savannah) from Brazil was measured in solutions containing graded amounts of KNO, Nitvate adsorp-tion for B-horizons varied from 0.11 mmol/100 g for soil suspensions of pH values ranging from 4.4 to 5.0. The amount adsorbed increased with decreasing pH. At given pH, adsorption was concentration-dependent in a manner consistent with the Langmuir equation
In soils with similar chemical and mineralogical compositions in the Ap and B horizons, the lower nitrate adsorption of the Ap horizons was attributed to the dif-ferences in the organic matter content
To determine the nitrate vemaining in the supernatant liquid, the nitrate elec-trode method and the spectrophotometric method using the ultraviolet range (200 mm) were used, which were checked against the phenoldisulfonic method. |
| format | Artículo |
| id | RepoCATIE12883 |
| 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 | RepoCATIE128832025-06-07T22:32:57Z Adsorcao de nitrato em Latossolos sob vegetacao de cerrado Nitrate adsorption in oxisols under humid brushland (savannah) | Adsorción de nitrato en latosoles con vegetación del cerrado. Velloso, Ary Carlos Xavier Suelo Nitrato||nitrates||nitrato||nitrate Ferralsol||Ferralsols||ferralsolo||ferralsol Nitrato de potasio||potassium nitrate||nitrato de potássio||nitrate de potassium Absorción||absorption||absorção||absorption pH del suelo||soil pH||pH do solo||pH du sol Materia orgánica del suelo||soil organic matter||matéria orgânica do solo||matière organique du sol Experimentación en laboratorio||laboratory experimentation||experimentação em laboratório||expérimentation en laboratoire Técnica analítica||analytical methods||técnica analítica||technique analytique Brasil||Brazil||Brasil||Brésil Sede Central Adsorption of nitrate by nine oxisols collected in cerrados (savannah) from Brazil was measured in solutions containing graded amounts of KNO, Nitvate adsorp-tion for B-horizons varied from 0.11 mmol/100 g for soil suspensions of pH values ranging from 4.4 to 5.0. The amount adsorbed increased with decreasing pH. At given pH, adsorption was concentration-dependent in a manner consistent with the Langmuir equation In soils with similar chemical and mineralogical compositions in the Ap and B horizons, the lower nitrate adsorption of the Ap horizons was attributed to the dif-ferences in the organic matter content To determine the nitrate vemaining in the supernatant liquid, the nitrate elec-trode method and the spectrophotometric method using the ultraviolet range (200 mm) were used, which were checked against the phenoldisulfonic method. 2025-06-04T16:02:27Z 2025-06-04T16:02:27Z 1975-10-01 Artículo https://repositorio.catie.ac.cr/handle/11554/12883 openAccess pt Turrialba Vol. 25, no. 4 6 application/pdf Instituto Interamericano de Cooperación para la Agricultura (IICA) |
| spellingShingle | Suelo Nitrato||nitrates||nitrato||nitrate Ferralsol||Ferralsols||ferralsolo||ferralsol Nitrato de potasio||potassium nitrate||nitrato de potássio||nitrate de potassium Absorción||absorption||absorção||absorption pH del suelo||soil pH||pH do solo||pH du sol Materia orgánica del suelo||soil organic matter||matéria orgânica do solo||matière organique du sol Experimentación en laboratorio||laboratory experimentation||experimentação em laboratório||expérimentation en laboratoire Técnica analítica||analytical methods||técnica analítica||technique analytique Brasil||Brazil||Brasil||Brésil Sede Central Velloso, Ary Carlos Xavier Adsorcao de nitrato em Latossolos sob vegetacao de cerrado |
| title | Adsorcao de nitrato em Latossolos sob vegetacao de cerrado |
| title_full | Adsorcao de nitrato em Latossolos sob vegetacao de cerrado |
| title_fullStr | Adsorcao de nitrato em Latossolos sob vegetacao de cerrado |
| title_full_unstemmed | Adsorcao de nitrato em Latossolos sob vegetacao de cerrado |
| title_short | Adsorcao de nitrato em Latossolos sob vegetacao de cerrado |
| title_sort | adsorcao de nitrato em latossolos sob vegetacao de cerrado |
| topic | Suelo Nitrato||nitrates||nitrato||nitrate Ferralsol||Ferralsols||ferralsolo||ferralsol Nitrato de potasio||potassium nitrate||nitrato de potássio||nitrate de potassium Absorción||absorption||absorção||absorption pH del suelo||soil pH||pH do solo||pH du sol Materia orgánica del suelo||soil organic matter||matéria orgânica do solo||matière organique du sol Experimentación en laboratorio||laboratory experimentation||experimentação em laboratório||expérimentation en laboratoire Técnica analítica||analytical methods||técnica analítica||technique analytique Brasil||Brazil||Brasil||Brésil Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/12883 |
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