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DIGITAL.CSIC
Article . 2012 . Peer-reviewed
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El nitrógeno en dos fracciones de la materia húmica de una tierra negra andaluza

Authors: Martín Martínez, Francisco; Díaz Barrientos, Encarnación; González García, Francisco;

El nitrógeno en dos fracciones de la materia húmica de una tierra negra andaluza

Abstract

[ES]: Se estudian los aminoácidos liberados en la hidrólisis ácida de las fracciones de ácidos fúlvicos y húmicos de una tierra negra andaluza (vertisuelo). El porcentaje de N liberado corresponde a un 50 por 100 del nitrógeno total en las dos fracciones. En el caso de los ácidos fúlvicos se encuentran pocos aminoácidos debido al método seguido para aislarlos del suelo. El residuo de la hidrólisis ácida se ha sometido a fusión alcalina, encontrando que parte del nitrógeno presente se halla en forma heterocíclica.

[EN]: The aminoacids obtained in the acid hydrolisis of humic and fulvic acids fractions of an Andalusian Blackearth (vertisol) are studied. The N Iiberated correspond to a 50 % of total N in the two fractions. In the case of fulvic acids very little aminoacids are found due to method used to isolate them from the soil. The rest of the acid hydrolisis of humic acids was hydrolized in alkali medium and was found that part of the N present is in an heterocyclic form.

8 páginas, 2 figuras, 6 tablas, 9 referencias.

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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