Page Banner

United States Department of Agriculture

Agricultural Research Service

Kristine A. Nichols

Research Microbiologist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Glomalin and soil aggregation under six management systems in the Northern Great Plains, USA Reprint Icon - (Peer Reviewed Journal)
Nichols, K.A., Millar, J. 2013. Glomalin and soil aggregation under six management systems in the Northern Great Plains, USA. Open Journal of Soil Science. 3:374-378.
Roles of biology, chemistry, and physics in soil macroaggregate formation and stabilization - (Peer Reviewed Journal)
Nichols, K.A., Halvorson, J.J., Caesar, T. 2013. Roles of biology, chemistry, and physics in soil macroaggregate formation and stabilization. Open Agriculture Journal. 7:107-117.
Cover Crop Chart: An intuitive educational resource for extension professionals Reprint Icon - (Peer Reviewed Journal)
Liebig, M.A., Johnson, H.A., Archer, D.W., Hendrickson, J.R., Nichols, K.A., Schmer, M.R., Tanaka, D.L. 2013. Cover Crop Chart: An intuitive educational resource for extension professionals. Journal of Extension. 51(3):1-5.
LaTeX for Agricultural Extension Professionals - (Proceedings)
Cannayen, I., Hellevang, K., Backer, L., Liebig, M.A., Nichols, K.A. 2012. LaTeX for Agricultural Extension Professionals. Meeting Proceedings. Paper #121337356.
Diversification and ecosystem services for conservation agriculture: Outcomes from pastures and integrated crop-livestock systems Reprint Icon - (Peer Reviewed Journal)
Sanderson, M.A., Archer, D.W., Hendrickson, J.R., Kronberg, S.L., Liebig, M.A., Nichols, K.A., Schmer, M.R., Tanaka, D.L., Aguilar, J.P. 2013. Diversification and ecosystem services for conservation agriculture: Outcomes from pastures and integrated crop-livestock systems. Renewable Agriculture and Food Systems. 28(2):129-144.
Soil aggregation and glomalin in a soil quality management study in a cold, semi-arid region - (Abstract Only)
Nichols, K.A., Liebig, M.A., Tanaka, D.L. 2012. Soil aggregation and glomalin in a soil quality management study in a cold, semi-arid region. International Soil and Water Conservation Conference. Abstract 138.
Corn residue removal impact on topsoil organic carbon in a corn-soybean rotation - (Peer Reviewed Journal)
Stetson, S.J., Osborne, S.L., Schumacher, T., Eynard, A., Chilom, G., Rice, J., Nichols, K.A., Pikul, J.L. 2012. Corn residue removal impact on topsoil organic carbon in a corn-soybean rotation. Soil Science Society of America Journal. DOI: 10.2136/sssaj2011.0420.
Effects of synthetic fertilizer on coffee yields and ecosystem services: Soil glomalin and parasitoids in a Costa Rican coffee agroecosystem - (Peer Reviewed Journal)
Banks, J.E., Cline, E.T., Castro, S., Urena, N., Nichols, K.A., Hannon, L., Singer, R., Chandler, M. 2011. Effects of synthetic fertilizer on coffee yields and ecosystem services: Soil glomalin and parasitoids in a Costa Rican coffee agroecosystem. Journal of Crop Improvement. 25:650-663.
Biochar: A synthesis of its agronomic impact beyond carbon sequestration Reprint Icon - (Peer Reviewed Journal)
Spokas, K.A., Cantrell, K.B., Novak, J.M., Archer, D.W., Ippolito, J.A., Collins, H.P., Boateng, A.A., Lima, I.M., Lamb, M.C., Mcaloon, A.J., Lentz, R.D., Nichols, K.A. 2012. Biochar: A synthesis of its agronomic impact beyond carbon sequestration. Journal of Environmental Quality. 41(4):973-989.
Soil quality demonstrations for building economically and environmentally sustainable soil - (Abstract Only)
Nichols, K.A., Liebig-Samson, S., Stika, J., Kutka, F., Lewton, M., Archuleta, R. 2011. Soil quality demonstrations for building economically and environmentally sustainable soil. ASA-CSSA-SSSA Annual Meeting Abstracts. 72-2.
Arbuscular mycorrhizal fungi and glomalin in fumigated and natural soils - (Experiment Station)
Ashley, R.O., Nichols, K.A. 2011. Arbuscular mycorrhizal fungi and glomalin in fumigated and natural soils. Dickinson Research Extension Center Publications. 2011 Annual Report. www.ag.ndsu.edu/DickinsonREC/annual-reports-1/2010-annual-report/agron10i.pdf.
Bioenergy cropping systems for food, feed, fuel, and soil - (Abstract Only)
Archer, D.W., Schmer, M.R., Liebig, M.A., Nichols, K.A., Kronberg, S.L. 2011. Bioenergy cropping systems for food, feed, fuel, and soil. ASA-CSSA-SSSA Annual Meeting Abstracts. 62-2.
Soil microbial community function, structure, and glomalin in response to tall fescue endophyte infection - (Peer Reviewed Journal)
Buyer, J.S., Zuberer, D.A., Nichols, K.A., Franzluebbers, A.J. 2010. Soil microbial community function, structure, and glomalin in response to tall fescue endophyte infection. Plant and Soil Journal. DOI: 10.1007/S11104-010-059Z-Y. 339:410-412. 2011.
Glomalin as an indicator of mycorrhizae in tropical agroecosystems - (Book / Chapter)
Toro, M., Nichols, K.A. 2011. Glomalin as an indicator of mycorrhizae in tropical agroecosystems. IN: Microbial Ecology of Tropical Soils. A.S.F. de Araujo M. do Vale Barreeto Figueiredo (Eds.). Book Chapter. p. 207-247.
A whole soil stability index (WSSI) for evaluating soil aggregation - (Peer Reviewed Journal)
Nichols, K.A., Toro, M. 2011. A whole soil stability index (WSSI) for evaluating soil aggregation. Soil and Tillage Research. 111:99-104. doi:10.1016/j.still.2010.08.014
Biomass composition of perennial grasses for biofuel production in North Dakota, USA Reprint Icon - (Peer Reviewed Journal)
Xue, Q., Nyren, P.E., Wang, G., Eriksmoen, E., Bradbury, G., Halvorson, M., Aberle, E., Nichols, K.A., Liebig, M.A. 2011. Biomass composition of perennial grasses for biofuel production in North Dakota, USA. Biofuels. 2(5):515-528. doi: 10.4155/bfs.11.123
An inexpensive and simple method to demonstrate soil water and nutrient flow Reprint Icon - (Peer Reviewed Journal)
Nichols, K.A., and Samson-Liebig, S. 2011. An inexpensive and simple method to demonstrate soil water and nutrient flow. Journal of Natural Resources and Life Sciences Education. 40:51-57.
Cover Crop Chart: An Outreach Tool for Agricultural Producers - (Other)
Liebig, M.A., Johnson, H.A., Hendrickson, J.R., Nichols, K.A., Schmer, M.R., Tanaka, D.L. 2010. Cover Crop Chart: An Outreach Tool for Agricultural Producers. Agricultural Research Service Publication. Vol. 6, page 1.
Cover Crop Chart: An Outreach Tool for Agricultural Producers - (Research Technical Update)
Liebig, M.A., Johnson, H.A., Hendrickson, J.R., Nichols, K.A., Schmer, M.R., Tanaka, D.L. 2010. Cover Crop Chart: An Outreach Tool for Agricultural Producers. Natural Resources Research Update (NRRU). Vol. 6, page 1.
Glomalin production and accumulation in soilless pot cultures - (Peer Reviewed Journal)
Nichols, K.A. 2010. Glomalin production and accumulation in soilless pot cultures. Canadian Journal of Soil Science. 90:567-570. doi:10.4141/CJSS09041
Soil aggregation as mechanism for understanding the roles of soil biota in the sustainable usage of natural resources - (Abstract Only)
Nichols, K.A. 2010. Soil aggregation as mechanism for understanding the roles of soil biota in the sustainable usage of natural resources. IN: ASA-CSSA-SSSA Annual Meeting Abstracts (CDROM), 31 October - 4 November 2010, Long Beach, CA.
Soil Biological Engineering to Enhance your Bottom Line - (Proceedings)
Nichols, K.A. 2009. Soil Biological Engineering to Enhance your Bottom Line. Meeting Proceedings.
Exploring the role of arbuscular mycorrhizal fungi in carbon sequestration in agricultural soil, Part III - (Abstract Only) - (01-Aug-09)
Arbuscular Mycorrhizal Fungi and Glomalin Enhance Carbon Sequestration in Organic Farming Systems - (Abstract Only)
Nichols, K.A., Douds, D.D., Hepperly, P.R., Seidel, R. 2009. Arbuscular Mycorrhizal Fungi and Glomalin Enhance Carbon Sequestration in Organic Farming Systems. Meeting Abstract.
Microbial Engineering to Enhance Your Bottom Line - (Proceedings)
Nichols, K.A. 2008. Microbial Engineering to Enhance Your Bottom Line. Meeting Proceedings.
Organic Matter and Water Stability of Field Aggregates Affected by Tillage in South Dakota Reprint Icon - (Peer Reviewed Journal)
Pikul, Jr., J.L., Chilom, G., Rice, J., Eynard, A., Schumacher, T.E., Nichols, K., Johnson, J.M.F., Wright, S., Caesar, T., Ellsbury, M. 2009. Organic Matter and Water Stability of Field Aggregates Affected by Tillage in South Dakota. Soil Science Society of America Journal. 73:197-206.
Indirect Contributions of AM Fungi and Soil Aggregation to Plant Growth and Protection - (Book / Chapter)
Nichols, K.A. 2008. Indirect Contributions of AM Fungi and Soil Aggregation to Plant Growth and Protection. IN: Siddiqui, Z.A., Akhtar, M.S., Futai, K. (eds.) Mycorrhizae: Sustainable Agriculture and Forestry. Spinger Science. pp. 177-194.
Crop Sequence Calculator, v. 3 - (Other)
Liebig, M.A., Tanaka, D.L., Hanson, J.D., Archer, D.W., Krupinsky, J.M., Merrill, S.D., Nichols, K.A., Hendrickson, J.R., Anderson, R.L., Charlet, L.D., Stott, D.E. 2008. Crop Sequence Calculator, v. 3. CD ROM.
Microbial engineering to enhance your bottom line - (Proceedings)
Nichols, K.A. 2008. Microbial engineering to enhance your bottom line. Meeting Proceedings for the 12th Annual No-Till on the Plains Winter Workshop, Salina, KS, Jan. 29-30. pp. 138-139.
Opportunities to utilize the USDA-ARS Northern Great Plains Research Laboratory soil sample archive - (Peer Reviewed Journal)
Liebig, M.A., Wikenheiser, D.J., Nichols, K.A. 2008. Opportunities to utilize the USDA-ARS Northern Great Plains Research Laboratory soil sample archive. Soil Sci. Soc. Am. J. 72:975-977.
Native and Introduced Mycorrhizal Fungi Effect on Switchgrass Response to Water and Defoliation Stress - (Abstract Only)
Hendrickson, J.R., Nichols, K.A., Johnson, H.A. 2008. Native and introduced mycorrhizal fungi effect on switchgrass response to water and defoliation stress. IN: Society for Range Management Meeting Abstracts (CD ROM), January 27 - February 1, 2008. Louiville, KY.
Hunting Nutrients and Trapping Carbon - (Proceedings)
Nichols, K.A. 2007. Hunting Nutrients and Trapping Carbon. Meeting proceedings for the 11th Annual No-Till on the Plains Winter Workshop, Salina, KS, Jan. 30-31. pp. 66-69.
Carbon Energy Flows Belowground - (Abstract Only)
Nichols, K.A. 2007. Carbon Energy Flows Belowground. Meeting Proceedings for the 29th Annual Zero Tillage and Winter Wheat Workshop, Brandon, Manitoba. Feb. 5-7. pp. 1059-1161.
Soil Aggregate Stability and Components of Organic Matter Affected by Tillage. - (Abstract Only)
Pikul Jr, J.L., Chilom, G., Rice, J., Eynard, A., Schumacher, T., Nichols, K.A., Johnson, J.M., Wright, S.E., Caesar, T., Ellsbury, M.M. 2006. Soil aggregate stability and components of organic matter affected by tillage. Meeting Abstract for 2006 ASA-CSSA-SSSA Annual Meeting, Indianapolis, IN, November 12-16, 2006.
An Inexpensive and Simple Method to Demonstrate Water Infiltration and Water-Holding Capacity in the Field and Classroom - (Abstract Only)
Nichols, K.A., Liebig, M.A., Samson-Liebig, S.E. 2006. An inexpensive and simple method to demonstrate water infiltration and water-holding capacity in the field and classroom. Meeting Abstract. World Congress of Soil Science, Philadalphia, PA, July 9-15, 2006.
Glomalin and Water-Stable Aggregation Measurements in Northern Plains Rangeland Management Studies - (Abstract Only)
Nichols, K.A., Hendrickson, J.R., Millar, J.E. 2006. Glomalin and water-stable aggregation measurements in northern plains rangeland management studies. World Congress of Soil Science, Philadelphia, PA, July 9-15, 2006. Meeting Abstract.
Long-Term Agroecosystem Experiments and Sample Archives at Usda-Ars-Ngprl - (Abstract Only)
Liebig, M.A., Hendrickson, J.R., Nichols, K.A. Long-term agroecosystem experiments and sample archives at usda-ars-ngprl. Meeting Proceedings of the World Congress of Soil Science held in Philadelphia, PA on July 9-15, 2006.
Making Soil Biology Work for You - (Proceedings)
Nichols, K.A. 2006. Making soil biology work for you. IN: Andy Berntson (ed.) 28th Annual Zero Tillage & Winter Wheat Workshop. 9-10 Feb. Manitoba-North Dakota Zero-Tillage Farmers Association Conference Proceedings.
Carbon and nitrogen in operationally-defined soil organic matter pools - (Peer Reviewed Journal)
Nichols, K.A., Wright, S.F. 2006. Carbon and nitrogen in operationally-defined soil organic matter pools. Biol. Fertil. Soils 43:215-220.
Carbon and Nitrogen in Operationally-Defined Soil Organic Matter Pools - (Peer Reviewed Journal) - (29-Dec-05)
Comparison of Efficacy of Three Extractants to Solubilize Glomalin on Hyphae and in Soil - (Peer Reviewed Journal)
Wright, S.E., Nichols, K.A., Schmidt, W.F. 2006. Comparison of efficacy of three extractants to solubilize glomalin on hyphae and in soil. Chemosphere. 64(7):1219-1224.
Comparision of Glomalin and Humic Acid in Eight Native U.S. Soils - (Peer Reviewed Journal)
Nichols, K.A., Wright, S.E. 2006. Comparision of glomalin and humic acid in eight native u.s. soils. Soil Science. 170(12):985-997.
Soil Organic Matter and Aggregate Stability under Contrasting Management in Eastern South Dakota - (Abstract Only)
Pikul Jr, J.L., Nichols, K.A., Eynard, A., Schumacher, T. 2005. Soil organic matter and aggregate stability under contrasting management in Eastern South Dakota. ASA/CSSA/SSSA Annual Meetings, Salt Lake City, Utah, November 6-10, 2005. In Agronomy Abstracts, 2005. American Society of Agronomy, Madison, WI.
Glomalin - the Scummy Soil Builder - (Proceedings)
Nichols, K.A. 2005. Glomalin - The scummy soil builder. p. 5-9. IN: Kendall Heise (ed.) 27th Annual Zero Tillage and Winter Wheat Workshop. Proc. 1-2 Feb. Manitoba-North Dakota Zero-Tillage Farmers Association. Meeting Proceedings.
Changes in Aggregate Stability and Glomalin Concentration in Grass and Forage Nursery Plots - (Abstract Only)
Nichols, K.A., Berdahl, J.D. 2004. Changes in aggregate stability and glomalin concentration in grass and forage nursery plots. ASA-CSSA-SSSA Annual Meeting Abstracts.
The USDA-ARS Farming Systems Project: Evaluating the Sustainability of Organic and Conventional Cropping Systems in the Mid-Atlantic - (Abstract Only)
Cavigelli, M.A., Teasdale, J.R., Szlavecz, K., Nichols, K.A., Green, V.S. 2004. The USDA-ARS farming systems project: evaluating the sustainability of organic and conventional cropping systems in the mid-Atlantic [abstract]. Mid-Atlantic Ecology Conference. Paper No. 4.
Contributions of Soil Fungi to Organic Matter in Agricultural Soils - (Book / Chapter)
Nichols, K.A., Wright, S.E. 2004. Contributions of soil fungi to organic matter in agricultural soils. In: Magdoff, F. and Weil R., editors. Functions and Management of Soil Organic Matter in Agroecosystems. Washington D.C.:CRC Press. p. 179-198.
Functional Significance of Glomalin to Soil Fertility - (Proceedings)
Nichols, K.A., Wright, S.E., Liebig, M.A., Pikul Jr, J.L. 2004. Functional significance of glomalin to soil fertility. p. 219-224. IN: A.J. Schlegel (ed.) Great Plains Soil Fertility Conf. Proc. Vol. 10 Denver, CO. 2-3 March 2004. Kansas State Univ. Meeting Proceedings.
The Role of Glomalin, a Protein Produced by Arbuscular Mycorrhizal Fungi, in Sequestering Potentially Toxic Elements - (Peer Reviewed Journal)
Gonzalez-Chavez, M., Carillo-Gonzalez, R., Wright, S.E., Nichols, K.A. 2004. The role of glomalin, a protein produced by arbuscular mycorrhizal fungi, in sequestering potentially toxic elements. Environmental Pollution. 130:317-323.
Using Glomalin As An Indicator for Arbuscular Mycorrhizal Hyphal Growth: An Example from a Tropical Rainforest Soil - (Peer Reviewed Journal)
Lovelock, C.E., Wright, S.E., Nichols, K.A. 2004. Using glomalin as an indicator for arbuscular mycorrhizal hyphal growth: An example from a tropical rainforest soil. Soil Biology and Biochemistry. 36(6): 1009-1012.
Role of Glomalin in Sequestration of Heavy Metals - (Abstract Only)
Gongalez-Chavez, M., Carillo-Gonzalez, Wright, S.E., Nichols, K.A. 2004. Role of glomalin in sequestration of heavy metals. Fourth International Conference on Mycorrhizae. p. 503.
Carbon Contribution and Characteristics of Humic Acid, Fulvic Acid, Particulate Organic Matter and Glomalin in Diverse Ecosystems - (Abstract Only)
NICHOLS, K.A., WRIGHT, S.E., SCHMIDT, W.F., CAVIGELLI, M.A., DZANTOR, K. CARBON CONTRIBUTION AND CHARACTERISTICS OF HUMIC ACID, FULVIC ACID, PARTICULATE ORGANIC MATTER AND GLOMALIN IN DIVERSE ECOSYSTEMS. IN: PROCEEDINGS OF HUMIC SUBSTANCES: NATURE'S MOST VERSATILE MATERIALS.INTERNATIONAL HUMIC SUBSTANCES SOCIETY. BOSTON, MA. 2002. PP 365-367.
Using Nmr to Distinguish Unique Components of Humic Substances - (Abstract Only)
NICHOLS, K.A., WRIGHT, S.E., SCHMIDT, W.F., SIMPSON, A.J., DZANTOR, E.K. USING NMR TO DISTINGUISH UNIQUE COMPONENTS OF HUMIC SUBSTANCES. AMERICAN SOCIETY OF AGRONOMY MEETINGS. 2001. S03-NICHOLS190155-0.
Glomalin Production by Arbuscular Mycorrhizal Fungi - (Abstract Only)
WRIGHT, S.E., NICHOLS, K.A., JAWSON, L. GLOMALIN PRODUCTION BY ARBUSCULAR MYCORRHIZAL FUNGI. AMERICAN SOCIETY OF AGRONOMY MEETINGS. 2001. S03-WRIGHT092106-0.
Soil Quality in No-Till and Organic Cropping Systems after Five Years - (Abstract Only) - (21-Oct-01)
Glomalin - a Manageable Soil Glue - (Other)
WRIGHT, S.E., NICHOLS, K.A., JAWSON, L., MCKENNA, L.F., ALMENDRAS, A. GLOMALIN - A MANAGEABLE SOIL GLUE. SOIL SCIENCE SOCIETY OF AMERICA SPECIAL PUBLICATION BOOK CHAPTER. 2001.
Soil Nitrogen and Carbon Pools after Five Years of Till, No-Till and Organic Cropping Systems Management: the USDA-ARS Farming Systems Project - (Abstract Only) - (15-Oct-01)
Glomalin As a Constituent of Humic Substances - (Abstract Only)
NICHOLS, K.A., WRIGHT, S.E., SCHMIDT, W.F., DZANTOR, E.K. GLOMALIN AS A CONSTITUENT OF HUMIC SUBSTANCES. HUMIC SUBSTANCES SEMINAR V. 2001.
Last Modified: 4/17/2013