Organic C, N and P in size fractions of virgin and cultivated soils of the semi-arid pampa of Argentina

Nutrient and organic carbon (OC) losses are important components of the soil degradation processes produced by continuous agriculture. It was hypothesized that coarse textured soils will be more affected by cultivation than fine textured ones. The purpose of this study was to evaluate the status of...

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Bibliographic Details
Published in:Journal of arid environments 2001-08, Vol.48 (4), p.501-508
Main Authors: Buschiazzo, D.E., Hevia, G.G., Hepper, E.N., Urioste, A., Bono, A.A., Babinec, F.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Argentina
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
particulate organic matter
soil degradation
Soil erosion, conservation, land management and development
Soil science
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Summary:Nutrient and organic carbon (OC) losses are important components of the soil degradation processes produced by continuous agriculture. It was hypothesized that coarse textured soils will be more affected by cultivation than fine textured ones. The purpose of this study was to evaluate the status of OC, total nitrogen (Nt), and three phosphorous fractions (total inorganic, Pi; organic, Po; and available, Pa) in different textured virgin (under Prosopis caldenia forest) and cultivated soils of the semi-arid pampa of Argentina. Three virgin and non-fertilized cultivated soil pairs, representative from soils of the region, were selected for this study: two fine sandy loam Entic Haplustolls and a sandy Typic Ustipsamment. The element content of each soil was analysed from the
ISSN:0140-1963
1095-922X
DOI:10.1006/jare.2000.0775