Multivariate analysis of chemical properties in Oxisols with different levels of intervention agricultural ; Análisis multivariado de propiedades químicas en Oxisoles con diferentes niveles de intervención agrícola
Human intervention in agricultural production affects directly soil quality by promoting changes in physical and chemical properties through the use of fertilizers, correctives and tillage practices (Brachiria and corn- soybean). The aim of this study was to evaluate changes in the chemical properties of two Oxisols (Typic Hapludox y Typic Haplustox) with different intervention levels, in the municipality of Puerto Lopez (Meta-Colombia). Samples were taken at 42 points, spaced 25 m perpendicularly between 0-0, 10 my 0.10 and 0.20 m of deep, for a total of 168 samples in both fields. The data w... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2010 |
Verlag/Hrsg.: |
Universidad Nacional de Colombia - Sede Palmira
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Schlagwörter: | Soil management / native savanna / rotational cropping / organic carbon / soil fertility / Eastern Plain / Colombia / Manejo del suelo / sabana nativa / rotación de cultivos / carbono orgánico / fertilidad del suelo / Llanos Orientales |
Sprache: | Spanish |
Permalink: | https://search.fid-benelux.de/Record/base-29248360 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/17655 |
Human intervention in agricultural production affects directly soil quality by promoting changes in physical and chemical properties through the use of fertilizers, correctives and tillage practices (Brachiria and corn- soybean). The aim of this study was to evaluate changes in the chemical properties of two Oxisols (Typic Hapludox y Typic Haplustox) with different intervention levels, in the municipality of Puerto Lopez (Meta-Colombia). Samples were taken at 42 points, spaced 25 m perpendicularly between 0-0, 10 my 0.10 and 0.20 m of deep, for a total of 168 samples in both fields. The data were analyzed by analysis of variance and multivariate analysis techniques, including principal component and cluster analysis. The properties studied were organic carbon, pH, exchangeable acidity, exchangeable aluminum, P, Ca, Mg, P, Na, effective cationic exchange capacity, sum of bases and base saturation. The agricultural intervention was reflected mainly in the topsoil, where the highest values of CO, Ca, Mg, K, P, SB, and ICC were found, probably due to the effect of crop residues, fertilizing and amendment applications. ; La intervención humana en la producción agrícola influye directamente en la calidad del suelo, promoviendo alteraciones en las propiedades físicas y químicas, mediante el uso de fertilizantes, correctivos y prácticas de labranza. El objetivo del presente trabajo fue evaluar los cambios en las propiedades químicas de dos Oxisoles (Typic Hapludox y Typic Haplustox), con diferentes niveles de intervención (cultivos de pasto Brachiaria y rotaciones de maíz y soya), en el municipio de Puerto López (Meta-Colombia). Las muestras fueron tomadas en 42 puntos, distanciados 25 m perpendicularmente, entre 0 y 0.10 m y 0.10 y 0.20 m de profundidad, para un total de 168 muestras en los dos lotes. Los datos fueron analizados mediante análisis de varianza y técnicas de análisis multivariado, a través de componentes principales y agrupamiento jerárquico. Las propiedades estudiadas fueron carbono orgánico, pH, acidez ...