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Artículo

A Rapid Chemical Method for Estimating Potentially Mineralizable and Particulate Organic Nitrogen in Mollisols

Martinez, Juan ManuelIcon ; Galantini, Juan Alberto
Fecha de publicación: 01/2017
Editorial: Taylor & Francis
Revista: Communications in Soil Science and Plant Analysis
ISSN: 0010-3624
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Agricultura, Silvicultura y Pesca

Resumen

The objective of this study was to obtain an indicator of labile nitrogen (N) through a cost- and time-saving procedure by evaluating the relationships among potentially mineralizable N (N0), particulate organic matter N (POM-N) and soil organic N extracted through partial soil digestion with different concentrations of sulfuric acid (H2SO4). Soil sampling (0?20 cm) was from nine fields under no-tillage. The N0 and POM-N were determined by long-term aerobic incubation and soil physical fractionation, respectively. A simple chemical method was developed by soil digestion at 100°C for 4 h with different concentrations of H2SO4 (0.1, 0.5, 1, 6, 12, and 24 mol L−1). All acid concentrations showed significant relationships with N0 as POM-N; however, the best prediction was resulted for 0.5 mol L−1 (R2 = 0.90?0.94, respectively), thus using this methodology as soil labile N indicator. This method would optimize N0 and POM-N estimation in short term and at a low cost.
Palabras clave: Chemical Digestion , Labile Organic Fractions , No-Tillage
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/25168
URL: http://www.tandfonline.com/doi/full/10.1080/00103624.2016.1254230
DOI: http://dx.doi.org/10.1080/00103624.2016.1254230
Colecciones
Articulos(CERZOS)
Articulos de CENTRO REC.NAT.RENOVABLES DE ZONA SEMIARIDA(I)
Citación
Martinez, Juan Manuel; Galantini, Juan Alberto; A Rapid Chemical Method for Estimating Potentially Mineralizable and Particulate Organic Nitrogen in Mollisols; Taylor & Francis; Communications in Soil Science and Plant Analysis; 48; 1; 1-2017; 113-123
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