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United States Department of Agriculture

Agricultural Research Service

Title: Specific Surface Area of a Typic Hapludult As Affected by the Addition of Organic Matter

Authors
item Fournier, I - LA PLATA ARGENTA
item Filgueria, R - LA PLATA ARGENTA
item Sikora, Lawrence
item Rawls, Walter
item Pachepsky, Yakov

Submitted to: Ciencia Del Suela
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: January 6, 2002
Publication Date: April 16, 2002
Citation: Fournier L.L., Figueira, R.R., Sikora, L.J., Rawls, W.J., Pachepsky, Y.A. 2002. Influencia del agregado de materia organica sobre la superficie espefica del suelo. In: XVIII Congreso Argentino de la Ciencia del suelo, April 16-19, 2002, Puerto Madryn. 2002 CDROM.

Interpretive Summary: Benefical effects of amending soils with organic by products includes improvement of chemical and physical properties. Very few papers have studied the changes in soil specific area after amendments with manures or composts. Soil samples were taken from a Typic Hapludult under corn rotation before and after four years of manures, composts and inorganic nitrogen fertilizer application. Soil samples were tested for changes in soil surface area using nitrogen gas absorption at 78 degrees K. The specific surface area significantly increased in all treatments, excepting in the fertilizer treatment. With the addition of organic amendments the specific surface area varied between o.73 m3/g and 0.91 m3/g by one percent of soil carbon increase.

Technical Abstract: Benefical effects of amending soils with organic by products includes improvement of chemical and physical properties. Very few papers have studied the changes in soil specific area after amendments with manures or composts. Soil samples were taken from a Typic Hapludult under corn rotation before and after four years of manures, composts and inorganic nitrogen fertilizer application. Soil samples were tested for changes in soil surface area using nitrogen gas absorption at 78 degrees K. The specific surface area significantly increased in all treatments, excepting in the fertilizer treatment. With the addition of organic amendments the specific surface area varied between o.73 m3/g and 0.91 m3/g by one percent of soil carbon increase.

Last Modified: 10/30/2014
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