Methods of mechanical dispersion for determining granulometric fractions in soils using four dispersant solutions

Vista sencilla de ítem
dc.creatorKaterine Borja
dc.creatorJaime Mercado
dc.creatorEnrique Combatt
dc.date2015
dc.date.accessioned2026-07-07T02:44:08Z
dc.descriptionSieve analysis studies depend on obtaining suspensions offully-dispersed and stable samples to facilitate the quantifica-tion of the fractions of soil aggregates. The aim of this studywas to compare the percentage of fractions obtained with fourchemical dispersants and two methods of mechanical disper-sion. To carry out this investigation, nine soils were selectedfrom the departments of Cordoba and Sucre and four meth-odologies using chemical dispersions: ((NaPO3)6+ Na2CO3),(NaOH) 1M, (Na4P2O7) 0.1M pH 10, and CH3COONa 1M, andtwo methodologies of mechanical dispersion were evaluated:a slow one at 60 rpm for 6 hours and another at 4000 rpm for15 minutes. The results were analyzed using a correlation testand contrasts. It was verified that the highest content of clayin the soil samples was found when using the 60 rpm agitationmethodology, due to greater dispersion of the granulometricfractions. Likewise, when comparing the different methodsof chemical dispersion, it was determined that NaOH had thehighest dispersing ability and sodium acetate presented a lowefficiency in the separation of soil particles.
dc.formatapplication/pdf
dc.identifier0120-9965
dc.identifierhttps://www.redalyc.org/articulo.oa?id=180341167015
dc.identifier.urihttp://hdl.handle.net/123456789/422235
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1803
dc.rightsAgronomía Colombiana
dc.sourceAgronomía Colombiana (Colombia) Num.2 Vol.33
dc.subjectAgrociencias
dc.titleMethods of mechanical dispersion for determining granulometric fractions in soils using four dispersant solutions
dc.typeartículo científico

Archivos

Colecciones

Agronomía Colombiana - Universidad Nacional de Colombia