Publications (Clicking on the reprint icon will take you to the publication reprint.)

Effect of no-till and extended rotation on nutrient losses in surface runoff - (Peer Reviewed Journal)

(01-May-13)

Thirty-year tillage effects on crop yield and soil fertility indicators - (Peer Reviewed Journal)

Karlen, D.L., Kovar, J.L., Cambardella, C.A., Colvin, T.S. 2013. Thirty-year tillage effects on crop yield and soil fertility indicators. Soil & Tillage Research. 130:24-41.

Evaluation of a proposed standardized analytical method for the determination of humic and fulvic acids in commercial products - (Book / Chapter)

(09-Oct-12)

Integrated physical-chemical procedure for soil organic carbon frationation and characterization during transition to organic farming - (Book / Chapter)

(09-Oct-12)

Abundant and stable char residues in soils: Implications for soil fertility and carbon sequestration - (Book / Chapter)

(09-Oct-12)

On-farm evaluation of a humic product in Iowa (U.S.) maize production - (Book / Chapter)

(09-Oct-12)

Chemical properties of humic and fulvic acid products and their ores of origin - (Book / Chapter)

(09-Oct-12)

Degree of woody encroachment into grasslands controls soil carbohydrate and amino compound changes during long-term laboratory incubation - (Peer Reviewed Journal)

Creamer, C.A., Filley, T.R., Olk, D.C., Plant, A., Peltre, C., Top, S.M., Boutton, T.W. 2012. Patterns of soil organic matter loss during long-term laboratory incubation. Organic Geochemistry. 52:23-31. Available: http://www.sciencedirect.com/science/article/pii/S0146638012001714.

Landscape management for sustainable supplies of bioenergy feedstock and enhanced soil quality - (Peer Reviewed Journal)

(07-Aug-12)

Corn stover harvest strategy effects on grain yield and soil quality indicators - (Peer Reviewed Journal)

(07-Aug-12)

Fall conservation deep tillage stabilizes maize residues into soil organic matter - (Peer Reviewed Journal)

(25-Jun-12)

Changes to soil organic N dynamics with leguminous woody plant encroachment into grasslands - (Peer Reviewed Journal)

Creamer, C.A., Filley, T.R., Olk, D.C., Stott, D.E., Dooling, V., Boutton, T.W. 2012. Changes to soil organic N dynamics with leguminous woody plant encroachment into grasslands. Biogeochemistry. Available: http://www.springerlink.com/content/587464236rk51k7u/. DOI:10.1007/s10533-012-9757-5.

Relating soil biochemistry to sustainable crop production - (Abstract Only)

(14-Mar-12)

Field evaluation of a humic product in Iowa corn fields - (Abstract Only)

(14-Mar-12)

Quantities and qualities of physical and chemical fractions of soil organic matter under a rye cover crop - (Abstract Only)

Olk, D.C., Cambardella, C.A., Kaspar, T.C. 2011. Quantities and qualities of physical and chemical fractions of soil organic matter under a rye cover crop. American Society of Agronomy Annual Meetings [abstracts]. ASA-CSSA-SSSA Annual Meeting. Oct. 16-19, 2011, San Antonio, TX. CD-ROM.

Types of Carbon Compounds That Accumulate Under No-Tillage In Rice-Based Rotations - (Abstract Only)

Olk, D.C., Anders, M.M. 2011. Types of Carbon Compounds That Accumulate Under No-Tillage In Rice-Based Rotations.American Society of Agronomy Annual Meetings [abstracts]. ASA-CSSA-SSSA Annual Meeting. Oct. 16-19, 2011, San Antonio, TX. CD-ROM.

Impacts of humic product application on yields of potato and other field crops - (Abstract Only)

Olk, D.C., Mosa, A.M., Waldrip, H. 2011. Impacts of humic product application on yields of potato and other field crops. American Society of Agronomy Annual Meetings [abstracts]. ASA-CSSA-SSSA Annual Meeting. Oct. 16-19, 2011, San Antonio, TX. CD-ROM.

Soil quality assessment: John Doran's challenge and the scientific community response - (Abstract Only)

Karlen, D.L. 2011. Soil quality assessment: John Doran's challenge and the scientific community response. American Society of Agronomy Annual Meetings [abstracts]. ASA-CSSA-SSSA Annual Meeting. Oct. 16-19, 2011, San Antonio, TX. Available: http://www.agronomy.org.

Energy issues affecting corn/soybean systems: Challenges for sustainable production - (Review Article)

Karlen, D.L., Archer, D.W., Liska, A.J., Meyer, S. 2012. Energy issues affecting corn/soybean systems: Challenges for sustainable production. Council for Agricultural Science and Technology Issue Paper. Paper No. 48. Available: http://www.cast-science.org/publications/?energy_issues_affecting_cornsoybean_systems_challenges_for_sustainable_production&show=product&productID=52665.

Crop stubble needs and opportunities - (Popular Publication)

Karlen, D.L. 2011. Crop stubble needs and opportunities. Western Australia No-Till Farmers Association Newsletter (WANTFA). New Frontiers in Agriculture. 19(3):112-115.

The importance of pre-conversion technologies for coupling sustainable bioenergy land use to biomass trade - (Abstract Only)

Muth, Jr., D.J., Hess, J., Karlen, D.L. 2011. The importance of pre-conversion technologies for coupling sustainable bioenergy land use to biomass trade. International Energy Agency Workshop. Available: http://www.bioenergytrade.org/downloads/campinas-workshop-final-program-30.8.pdf.

The Birkás influence on international soil management research and education - (Book / Chapter)

Karlen, D.L. 2012. The Birkás influence on international soil management research and education. In: Birkás, M., editor. Soil School: What to learn from and what to teach about soils. Gödöllo, Hungary: Szent Istvan University Press. pp. 145-151.