Soil organic matter

Field Trials;
 I am field testing for the 09 corn season with JMU and consultation  Dr. Hepperly at Rodale Institute.

Ten research priorities were identified at the IBI conference, The following priorities I hope to address:
• 1- Economy research/market research
• 2- plant+soil research depending on biochar
• 5- field trials
• 8- application to soil (depending on agricultural or other

Planting date: June 24th.
Two split plots , which each are split into a 20% (27 tons/Ac) & 5% (7 tons/Ac) application rates,
All chars soaked in tarps for 1 month, all chars were mixed 1:2 by volume with finished poultry litter compost and roto-tilled to 5 inch depth.

Restoring soil carbon can reverse global warming
Erich J. Knight, February 21, 2008

Here is a strait forward conversion of the impact of building soil organic material (SOM) on ppm of GHGs using just marginal land.

Tony Lovell of Soil Carbon P/L in Australia estimates that by actively supporting regrowth of vegetation in damaged ecosystems, billions of tons of carbon dioxide can be sequestered from the atmosphere.

"Determining how much carbon dioxide (CO2) can physically be consumed from the atmosphere?


Research Project: Biogeochemical Processes Influencing Formation and Stabilization of Soil Organic Matter and Soil Structure
National Soil Tilth Laboratory, USDA Agricultural Research Service, Ames, IA
Location: Soil and Water Quality Research
Project Number: 3625-11120-003-00
Project Type: Appropriated
Start Date: Apr 25, 2006
End Date: Apr 24, 2011

Soil Organic Carbon
Jan Skjemstad, CRC Greenhouse Accounting

In Summary

Soil OC is a significant source and sink of atmospheric CO2

Soil is a complex, biologically active medium

Soil OC is not one material

Changes in SOC can be measured directly or can be modelled

The C sink value of soils is limited BUT increasing and maintaining SOC has many benefits for improved productivity and soil resilience


Manage carbon to sustain soil structure

Soil organic carbon plays a critical role in the biological, chemical and physical health of a soil. But little is known about how crop management impacts on soil organic carbon levels and thus soil health. This article describes how a new approach to understanding this relationship could help farmers better manage soil organic carbon.


Exploring Atypical Stabilization Pathways Using Pool-Based Modeling
Sohi, Saran, Yates, Helen, Lehmann, Johannes Liang, Biqing, Gaunt, John
Cornell University WCSS Poster 2006

Simulation models that explicitly account for the impact and interaction of soil and environmental variables can assist in predicting the accumulation of C and its rate of turnover. Relevant, verifiable (i.e. measurable) pools of Soil Organic Matter (SOM) provide the most robust basis for elucidating the underlying mechanisms. We have developed a model based around three measurable pools of SOM which can be measured using a density-based fractionation procedure, and verified by extensive chemical characterization. The model has been optimized against measurements of C and N and isotope-tracers in several soils amended with isotope-labeled organic matter. According to recent estimates black C is a much larger component of Soil Organic Carbon (SOC) in typical agricultural soils than previously assumed. Since black C may also be the most stable form of organic C in the soil, the amount of black C in the soil must impact both on the bulk rate of soil C mineralization (turnover) and the extent to which a particular management intervention can alter SOC. Until now our simulations have not accounted explicitly for the effect of black C on the dynamics of each pool. We are now examining how black C is characterized by physical location within the soil matrix, and in order to account for the influence of black C using this model affects C mineralization, and the distribution of charcoal between each of the measured fractions.


Soil erosion, energy scarcity, excess greenhouse gas all answered through regenerative carbon management
Paul Hepperly, The New Farm, Rodale Institute, January 12, 2006

Compost is great, but new bio-based process yields hydrogen and super-stable carbon as charcoal soil booster.

Dr. Paul's Research Perspectives
Soil erosion, energy scarcity, excess greenhouse gas
all answered through regenerative carbon management
Compost is great, but new bio-based process yields hydrogen and super-stable carbon as charcoal soil booster.

By Paul Hepperly

editors' NOTE:

As New Farm Research and Training Manager at The Rodale Institute


Black Carbon Increases Cation Exchange Capacity in Soils
Liang et al. Soil Sci Soc Am J.2006; 70: 1719-1730

B. Liang, J. Lehmann, D. Solomon, J. Kinyangi, J. Grossman, B. O'Neill, J. O. Skjemstad, J. Thies, F. J. Luiz

Subscribe to Soil organic matter