ROOT LENGTH DENSITY OF Acacia mangium Willd IN SAVANNAH SOIL ; DENSIDAD DE LONGITUD DE RAÍCES DE Acacia mangium Willd EN UN SUELO DE SABANA
To understand the chemical fertility of a Savannah soil in an Acacia mangium (Fabaceae) plantation, which is a timber-yielding species of rapid growth that fixes nitrogen and restores the natural properties of the soil, the pH, MO, CIC, P and exchange bases were analyzed during three seasons of the year (dry, rainy and north wind) at two depths (0-30 and 30-60 cm); in addition, the vertical and horizontal behavior of the fine root length density of the trees was estimated. Results showed that soil acidity increases with depth and during the rainy season. The highest MO content was observed dur... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2018 |
Verlag/Hrsg.: |
Colegio de Postgraduados
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Schlagwörter: | Soil recuperation / root system / acid soil / Recuperación de suelo / sistema radical / suelo ácido |
Sprache: | Spanish |
Permalink: | https://search.fid-benelux.de/Record/base-27644501 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://revista-agroproductividad.org/index.php/agroproductividad/article/view/713 |
To understand the chemical fertility of a Savannah soil in an Acacia mangium (Fabaceae) plantation, which is a timber-yielding species of rapid growth that fixes nitrogen and restores the natural properties of the soil, the pH, MO, CIC, P and exchange bases were analyzed during three seasons of the year (dry, rainy and north wind) at two depths (0-30 and 30-60 cm); in addition, the vertical and horizontal behavior of the fine root length density of the trees was estimated. Results showed that soil acidity increases with depth and during the rainy season. The highest MO content was observed during drought season, and it decreases with depth. The P content was low in general, as was the CIC for both parameters; the lowest values were found during the rainy season and at greater depth. All the exchange bases showed very low contents that tended to increase with depth and during the moist seasons, except for K. The vertical DR showed a greater development (51.5 %) in the first 20 cm, while the horizontal one was similar at all distances from the tree. ; Para conocer la fertilidad química de un suelo de sabana en una plantación de Acacia mangium (Fabaceae), especie maderable de rápido crecimiento fijadora de nitrógeno y restauradora de propiedades naturales del suelo, se analizó el pH, MO, CIC, P y bases de intercambio, en tres épocas del año (seca, lluvia y nortes) a dos profundidades (0-30 y 30-60 cm); estimándose además el comportamiento vertical y horizontal de la densidad de longitud de raíces finas de los árboles. Los resultados mostraron que la acidez del suelo aumenta con la profundidad y en época de lluvias. El mayor contenido de MO se observó en la etapa de sequía, y disminuye con la profundidad. El contenido de P fue en general bajo, al igual que la CIC para ambos parámetros, los menores valores se registraron en la épocas lluviosa y a mayor profundidad. Todas las bases de intercambio mostraron contenidos muy bajos tendiendo a disminuir con la profundidad y en las épocas húmedas, excepto el K. La DLR ...