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Examples of Soil Improvement at EPRIDA

Submitted by Tom Miles on April 6, 2007 - 4:05pm
Last updated March 10, 2009
in

Examples of Soil Improvement at EPRIDA
Doug Clayton, April 2007

IMG_7237IMG_7237

Click on photo for full view

I took the pictures when I visited Danny Day at Eprida last month.

The first shot is of the red Georgia clay before and after charcoal had been tilled in two years prior. The second shows some "structure" as a result of the charcoal treatment. The untreated had become very hard (compacted).

Three and four illustrate how tilth was improved. In both shots Danny
is pushing the device (penetrometer??) with a force of 300#/ sq. in.
and it is obvious how much looser the soil in the fourth image is!

Douglas Clayton
50 Bullard Rd
Jaffrey, NH 03452
work: 603-532-1120
home: 603-532-7321
fax: 603-532-4581

Note: Root penetration decreases linearly with penetration resistance, until almost no roots penetrate into soil with a penetration resistance of 300 psi. See: Measuring Soil Using a Penetrometer Pennsylvania State University

Biogeochemical Processes Influencing Formation and Stabilization of Soil Organic Matter and Soil Structure

Submitted by Tom Miles on April 6, 2007 - 7:41pm
Last updated April 15, 2007
in

Biogeochemical Processes Influencing Formation and Stabilization of Soil Organic Matter and Soil Structure
Douglas Karlen, Research Leader, Ames, IA 50011 USDA ARS, Soil and Water Quality Research

Project Number: 3625-11120-003-00
Project Type: Appropriated

Start Date: Apr 25, 2006
End Date: Apr 24, 2011

Objective:

Use of Charcoal to Enhance Soil Quality in a Future Powered by Bioenergy

Submitted by Tom Miles on March 10, 2007 - 9:07pm
Last updated April 06, 2007
in

Use of Charcoal to Enhance Soil Quality in a Future Powered by Bioenergy
David A. Laird, USDA, ARS, National Soil Tilth Laboratory
Growing the Bioeconomy Conference 2005, Iowa State University, Ames, IA

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