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

Soil carbon changes influenced by soil management and calculation method - (Peer Reviewed Journal) - (01-Apr-13)

Simulating variably-saturated reactive transport of selenium and nitrogen in agricultural groundwater systems - (Peer Reviewed Journal)

Bailey, R.T., Gates, T.K., Halvorson, A.D. 2013. Simulating variably-saturated reactive transport of selenium and nitrogen in agricultural groundwater systems. Journal of Contaminant Hydrology. http://dx.doi.org/10.1016/j.jconhyd.2013.03.001.

Developing low-input, high-biomass, perennial cropping systems for advanced biofuels in the Intermountain West - (Proceedings)

Pearson, C.H., Keske, C., Follett, R.F., Halvorson, A.D., Larson, S.R., Brandess, A. 2013. Developing low-input, high-biomass, perennial cropping systems for advanced biofuels in the Intermountain West. Sungrant Initiative.

Nitrogen Source and Placement Affect Soil Nitrous Oxide Emissions from Irrigated Corn in Colorado - (Popular Publication)

Halvorson, A.D., Del Grosso, S.J. 2012. Nitrogen Source and Placement Affect Soil Nitrous Oxide Emissions from Irrigated Corn in Colorado. Better Crops. 96(4):7-9.

Nitrogen Placement Effects on Soil Nitrous Oxide Emissions from Irrigated Corn - (Abstract Only)

Halvorson, A.D., Del Grosso, S.J. 2012. Nitrogen Placement Effects on Soil Nitrous Oxide Emissions from Irrigated Corn. ASA-CSSA-SSSA Annual Meeting Abstracts. CD-ROM.

Crop rotation effect on soil carbon and nitrogen stocks under limited irrigation - (Peer Reviewed Journal)

Halvorson, A.D., Schlegel, A.J. 2012. Crop rotation effect on soil carbon and nitrogen stocks under limited irrigation. Agronomy Journal. 104:1265-1273.

Nitrogen source and placement effects on soil nitrous oxide emissions from no-till corn - (Peer Reviewed Journal)

Halvorson, A.D., Del Grosso, S.J. 2912. Nitrogen source and placement effects on soil nitrous oxide emissions from no-till corn. Journal of Environmental Quality. 41: 1349-1360.

Crop rotation effect on soil carbon and nitrogen stocks under limited irrigation - (Peer Reviewed Journal)

Halvorson, A.D., Schlegel, A.J. 2012. Crop rotation effect on soil carbon and nitrogen stocks under limited irrigation. Agronomy Journal. 104(5):1265-1273.

Comparison of methods to evaluate soil and crop management-induced soil carbon changes - (Proceedings)

Mikha, M.M., Benjamin, J.G., Halvorson, A.D., Nielsen, D.C. 2012. Comparison of methods to evaluate soil and crop management-induced soil carbon changes. 2012 Great Plains Soil Fertility Conference Proceedings. 14:258-264. March 6-7, 2012. Denver, Colo.

Chapter 10 – Management to Reduce Greenhouse Gas Emissions in Western U.S. Croplands - (Book / Chapter)

Halvorson, A.D., Steenwerth, K.L., Suddick, E.C., Liebig, M.A., Bronson, K.F., Collins, H.P. 2012. Chapter 10 – Management to Reduce Greenhouse Gas Emissions in Western U.S. Croplands. Elsevier. 167-182.

Chapter 10 - Management to Reduce Greenhouse Gas Emissions in Western U.S. Croplands - (Book / Chapter)

Halvorson, A.D., Steenwerth, K.L., Suddick, E.C., Liebig, M.A., Bronson, K.F., Collins, H.P. 2012. Chapter 10 - Management to Reduce Greenhouse Gas Emissions in Western U.S. Croplands. Elsevier. 167-182.

Nitrogen source effects on nitrous oxide emissions from irrigated strip-till and no-till corn production ystems - (Proceedings)

Halvorson, A.D., Del Grosso, S.J. 2012. Nitrogen source effects on nitrous oxide emissions from irrigated strip-till and no-till corn production ystems. Fluid Fertilizer Foundation Symposium Proceedings. www.fluidfertilizer.com/fertilizer_forum_proceedings2012html

Nitrogen fertilizer source and placement effects on nitrous oxide emissions - (Proceedings)

Halvorson, A.D., Del Grosso, S.J. 2012. Nitrogen fertilizer source and placement effects on nitrous oxide emissions. Proceedings of Great Plains Soil Fertility Conference. 14:8-14.

Nitrogen source effects on soil nitrous oxide emissions from strip-till corn - (Peer Reviewed Journal)

Halvorson, A.D., Del Grosso, S.J., Jantalia, C.P. 2011. Nitrogen source effects on soil nitrous oxide emissions from strip-till corn. Journal of Environmental Quality. 40:1775-1786.

Management to reduce greenhouse gas emissions in western U.S. croplands - (Book / Chapter)

Halvorson, A.D., Steenwerth, K.L., Suddick, E.C., Liebig, M.A., Smith, J.L., Bronson, K.F., Collins, H.P. 2012. Management to reduce greenhouse gas emissions in western U.S. croplands. Elsevier. New York, NY: Elsevier Inc. p. 167-182.

Nitrogen Source Effects on Soil Nitrous Oxide Emissions from No-Till Corn - (Abstract Only)

Halvorson, A.D., Del Grosso, S.J. 2012. Nitrogen Source Effects on Soil Nitrous Oxide Emissions from No-Till Corn. American Society of Agronomy Abstracts. CD-ROM.

Nitrogen fertilization effects on irrigated no-till corn production and soil carbon and nitrogen - (Peer Reviewed Journal)

Halvorson, A.D., Jantalia, C. 2011. Nitrogen fertilization effects on irrigated no-till corn production and soil carbon and nitrogen. Agronomy Journal. 103: 1423-1431.

Manure and nitrogen fertilizer effects on corn productivity and soil fertility under drip and furrow irrigation - (Peer Reviewed Journal)

Berrada, A., Halvorson, A.D. 2012. Manure and nitrogen fertilizer effects on corn productivity and soil fertility under drip and furrow irrigation. Archives of Agronomy and Soil Science . p. 1-9.

Methods to evaluate soil and crop management-induced soil carbon changes - (Abstract Only) - (12-Apr-11)

Nitrogen Source Effects on Nitrous Oxide Emissions - (Government Publication)

Halvorson, A.D., Del Grosso, S.J., Alluvione, F. 2011. Nitrogen Source Effects on Nitrous Oxide Emissions. Natural Resources Research Update (NRRU). Vol. 2 pg 1.

Nitrogen source effects on nitrous oxide emissions from irrigated cropping systems in Colorado. American Chemical Society Symposium Series - (Peer Reviewed Journal)

Halvorson, A.D., Del Grosso, S.J. 2011. Nitrogen source effects on nitrous oxide emissions from irrigated cropping systems in Colorado. American Chemical Society Symposium Series. American Chemical Society Symposium Series. 1072:15-27.

Crop Management Effects On Nitrous Oxide Emissions From Irrigated Systems - (Proceedings)

Halvorson, A.D. 2011. Crop Management Effects On Nitrous Oxide Emissions From Irrigated Systems. In Proceedings of the 2011 Western Nutrient Management Conference, March 3-4, 2011, Reno, NV. International Plant Nutrition Institute, Brookings, SD 9:16-21.

Nitrous Oxide Emissions from Several Nitrogen Sources Applied To A Strip-Tilled Corn Field - (Proceedings)

Halvorson, A.D., Del Grosso, S.J., Jantalia, C. 2011. Nitrous Oxide Emissions from Several Nitrogen Sources Applied To A Strip-Tilled Corn Field. In Proc. of the 2011 Fluid Forum, Feb. 20-23, Scotsdale, AZ. Fluid Fertilizer Foundation, Manhattan, KS. 28:21-27.

Nitrogen fertilizer effects on irrigated conventional tillage corn yields and soil carbon and nitrogen pools - (Peer Reviewed Journal)

Jantalia, C.P., Halvorson, A.D. 2011. Nitrogen fertilizer effects on irrigated conventional tillage corn yields and soil carbon and nitrogen pools. Agronomy Journal. 103:871-878.

Nitrogen Source Effects on Nitrous Oxide Emissions from a Strip-Tilled Corn Field - (Abstract Only) - (28-Jun-10)

Critical Precipitation Period for Dryland Maize Production - (Peer Reviewed Journal)

Nielsen, D.C., Halvorson, A.D., Vigil, M.F. 2010. Critical Precipitation Period for Dryland Maize Production. Field Crops Research 118:259-263. doi:10.1016/j.fcr.2010.06.004

Vertical distribution of corn stover dry mass grown at several U.S. locations - (Peer Reviewed Journal)

Wilhelm, W.W., Johnson, J.M., Lightle, D., Karlen, D.L., Novak, J.M., Barbour, N.W., Laird, D.A., Baker, J.M., Ochsner, T.E., Halvorson, A.D., Archer, D.W., Arriaga, F.J. 2011. Vertical distribution of corn stover dry mass grown at several U.S. locations. BioEnergy Research. 4(1):11-21.

Critical Precipitation Period for Dryland Corn Production - (Abstract Only)

Nielsen, D.C., A.D. Halvorson, M.F. Vigil. 2010. Critical Precipitation Period for Dryland Corn Production. Agronomy Abstracts. Presented at the 2010 (ASA-CSSA-SSSA) meetings. Oct. 31 thru Nov. 3, 2010. Long Beach, CA.

Nitrogen source effects on nitrous oxide emissions from irrigated no-till corn - (Peer Reviewed Journal)

Halvorson, A.D., Del Grosso, S.J., Alluvione, F. 2010. Nitrogen source effects on nitrous oxide emissions from irrigated no-till corn. Journal of Environmental Quality 39:1554-1562.

The effect of enhanced-efficiency fertilizers on nitrous oxide emissions from various cropping systems - (Abstract Only)

Halvorson, A.D., Del Grosso, S.J., Venterea, R.T., Rosen, C., Smith, J.L., Parkin, T.B., Hatfield, J.L., Sistani, K.R., Dell, C.J., Watts, D.B. 2010. The effect of enhanced-efficiency fertilizers on nitrous oxide emissions from various cropping systems. Meeting Abstract. p - see link above

Nutrient removal as a function of corn stover cutting height and cob harvest - (Peer Reviewed Journal)

Johnson, J.M., Wilhelm, W.W., Karlen, D.L., Archer, D.W., Wienhold, B.J., Lightle, D.T., Laird, D.A., Baker, J.M., Ochsner, T.E., Novak, J.M., Halvorson, A.D., Arriaga, F.J., Barbour, N.W. 2010. Nutrient removal as a function of corn stover cutting height and cob harvest. BioEnergy Research. 3:342-352.

Chile Pepper Response to Nitrogen Fertilization - (Experiment Station)

Halvorson, A.D., Bartolo, M. 2010. Chile Pepper Response to Nitrogen Fertilization. Agricultural Experiment Station Publication. p. 39-42.

Managing Nitrogen Fertilizer for Economic Returns and Greenhouse Gas Reductions on Irrigated Cropping Systems in Colorado - (Trade Journal)

Archer, D.W., Halvorson, A.D. Managing Nitrogen Fertilizer for Economic Returns and Greenhouse Gas Reductions on Irrigated Cropping Systems in Colorado. Better Crops 94 (2): 4-5.

Production of Hybrid Poplar under Short-Term, Intensive Culture in Western Colorado - (Peer Reviewed Journal)

Pearson, Calvin, Halvorson, A.D., Moench, R., Hammon, R. 2010. Production of Hybrid Poplar under Short-Term, Intensive Culture in Western Colorado. Industrial Crops and Products. 31:492-498.

Nitrogen Rates for Dryland Triticale Hay - (Proceedings)

Vigil, M.F., Poss, D.J., Halvorson, A.D. 2010. Nitrogen Rates for Dryland Triticale Hay. Great Plains Soil Fertility Conference. Pages 189-194. March 2-3, 2010. Denver, CO.

Crop Management Effects on Crop Residue Production and Changes in Soil Organic Carbon in the Central Great Plains - (Peer Reviewed Journal)

Benjamin, J.G., Halvorson, A.D., Nielsen, D.C., Mikha, M.M. 2010. Crop Management Effects on Crop Residue Production and Changes in Soil Organic Carbon in the Central Great Plains. Agronomy Journal. 102:990-997.

Change in Soil Phosphorus as Influenced by Crop Sequence, Tillage, and N Fertilization - (Proceedings)

Liebig, M.A., Halvorson, A.D. 2010. Change in Soil Phosphorus as Influenced by Crop Sequence, Tillage, and N Fertilization. p. 205-210. IN: A.J. Schlegel and H.D. Bond (Eds.) Great Plains Soil Fertility Conf. Proc. Vol. 13. Denver, CO. March 2-3, 2010. Kansas State Univ.

Nitrogen Source Affects Nitrous Oxide Emissions in a Strip-Tilled Continuous Corn Field - (Proceedings)

Halvorson, A.D., Del Grosso, S.J. 2010. Nitrogen Source Affects Nitrous Oxide Emissions in a Strip-Tilled Continuous Corn Field. Proceedings Great Plains Soil Fertility Conference. Denver, CO March 2-3-2010. Kansas State University, Manhattan, KS and Potash and Phosphate Institute, Brookins, SD. 13:30-36.

Tillage and Nitrogen Source Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems - (Abstract Only) - (03-Aug-09)

Greenhouse Gas Mitigation Economics for Irrigated Cropping Systems in Northeastern Colorado - (Peer Reviewed Journal)

Archer, D.W., Halvorson, A.D. 2010. Greenhouse Gas Mitigation Economics for Irrigated Cropping Systems in Northeastern Colorado. Soil Sci. Soc. Am. J. 74(2):446-452.

Tillage and Inorganic Nitrogen Source Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems - (Peer Reviewed Journal)

Halvorson, A.D., Del Grosso, S.J., Alluvione, F. 2010. Tillage and Inorganic Nitrogen Source Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems. Soil Science Society of America Journal. Vol. 74:, No.2, 436-445.

Nitrogen, Tillage, and Crop Rotation Effects On Carbon Dioxide and Methane Fluxes from Irrigated Cropping Systems - (Peer Reviewed Journal)

Alluvione, F., Halvorson, A.D., Del Grosso, S.J. 2009. Nitrogen, Tillage, and Crop Rotation Effects On Carbon Dioxide and Methane Fluxes from Irrigated Cropping Systems. Journal of Environmental Quality. 38:2023-2033.

Nitrogen Rate and Source Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems in Colorado - (Other)

Halvorson, A.D., Del Grosso, S.J., Alluvione, F. 2009. Nitrogen Rate and Source Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems in Colorado. Better Crops with Plant Food. 93 (1):16-18.

Irrigated Corn Cob Production and Quality: Potential Cellulosic Feedstock - (Abstract Only)

Halvorson, A.D., Johnson, J.M. 2009. Irrigated Corn Cob Production and Quality: Potential Cellulosic Feedstock. Meeting Abstract. p. 64.

Nitrogen Source Affects Nitrous Oxide Emissions from Irrigated No-Till Corn in Colorado (USA) - (Proceedings)

Halvorson, A.D., Del Grosso, S.J. 2009. Nitrogen Source Affects Nitrous Oxide Emissions from Irrigated No-Till Corn in Colorado (USA). In: Grignani, C., Acutis, M., Zavatto, L., Bechini, L. Betora, C., Gallina, P.M. and Sacco, D. eds.). Proceedings 16th Nitrogen Workshop, Connecting Different Scales of Nitrogen Use in Agriculture. June 28 to July 1, 2009. Turin, Italy. (abstract). p. 161-162.

Cob Characteristics in Irrigated Central Great Plains Studies - (Peer Reviewed Journal)

Halvorson, A.D., Johnson, J.M. 2009. Cob Characteristics in Irrigated Central Great Plains Studies. Agronomy Journal. 101:390-399.

Nitrogen Management for Irrigated Corn - (Popular Publication)

Maddux, L.D., Halvorson, A.D. 2008. Nitrogen Management for Irrigated Corn. International Plant Nutrition Institute (IPNI) Agronomy Information Bulletin. In W.M. Stewart and W.B. Gordon (eds). Fertilizing for Irrigated Corn: Guide to Best Management Practices. p. 3-1 to 3-6.

Vertical distribution of corn stover dry mass - (Abstract Only)

Johnson, J.M., Wilhelm, W.W., Lightle, D., Karlen, D.L., Baker, J.M., Ochsner, T.E., Novak, J.M., Halvorson, A.D., Archer, D.W., Laird, D.A. 2008. Vertical distribution of corn stover dry mass [abstract][CD-ROM]. ASA-CSSA-SSSA Annual Meeting Abstracts. ASA-CSSA-SSSA Annual Meeting. Oct. 5-9, 2008, Houston, TX.

ECONOMIC OPPORTUNITIES FOR REDUCING NET GLOBAL WARMING POTENTIAL IN IRRIGATED CROPPING SYSTEMS IN NORTHEASTERN COLORADO - (Abstract Only)

Archer, D.W., Halvorson, A.D. 2008. ECONOMIC OPPORTUNITIES FOR REDUCING NET GLOBAL WARMING POTENTIAL IN IRRIGATED CROPPING SYSTEMS IN NORTHEASTERN COLORADO. Agronomy Abstracts.

QuickBird Satellite and Ground-based Multispectral Data Correlations with Agronomic Parameters of Irrigated Maize Grown in Small Plots - (Peer Reviewed Journal)

Bausch, W.C., Halvorson, A.D., Cipra, J. 2008. QuickBird Satellite and Ground-based Multispectral Data Correlations with Agronomic Parameters of Irrigated Maize Grown in Small Plots. Biosystems Engineering 101 (2008), pp. 306-315 DOI information: 10.1016/j.biosystemseng.2008.09.011

Nitrogen Source Effects On Nitrous Oxide Emissions From An Irrigated No-Till Corn Field (GRACEnet) - (Abstract Only) - (25-Jun-08)

Management Effects On Nitrous Oxide Emissions From Irrigated Cropping Systems - (Abstract Only)

Halvorson, A.D., Del Grosso, S.J., Reule, C.A. 2008. Management Effects On Nitrous Oxide Emissions From Irrigated Cropping Systems. Soil and Water Conservation Society meeting. July 26-30, 2008. On-line Conference abstract. Book, p. 52.

Comparison of two soil quality indexes to evaluate cropping systems in northern Colorado - (Peer Reviewed Journal)

Zobeck, T.M., Halvorson, A.D., Wienhold, B.J., Acosta Martinez, V., Karlen, D.L. 2008. Comparison of two soil quality indexes to evaluate cropping systems in northern Colorado. Journal of Soil and Water Conservation. 63(5):329-338.

Soil In The Environment - (Literature Review)

Halvorson, A.D. 2008. Book Review. Soil In The Environment. Soil Science Society of America Journal 72:1185.

ECONOMICS OF IRRIGATED CONTINUOUS CORN UNDER CONVENTIONAL-TILL AND NO-TILL IN NORTHERN COLORADO - (Peer Reviewed Journal)

Archer, D.W., Halvorson, A.D., Reule, C.A. 2008. Economics of irrigated continuous corn under conventional-till and no-till in northern colorado. Agronomy Journal, 100:1166-1172.

ACHIEVING ECONOMIC AND GREENHOUSE GAS GOALS THROUGH TILLAGE AND N MANAGEMENT - (Proceedings)

Archer, D.W., Halvorson, A.D. 2008. Achieving economic and greenhouse gas goals through tillage and n management. Proceedings Great Plains Soil Fertility Conference.

Nitrogen Effects on Onion Yield Under Drip and Furrow Irrigation - (Peer Reviewed Journal)

Halvorson, A.D., Reule, C.A., Bartolo, M., Berrada, A. 2008. Nitrogen Effects on Onion Yield Under Drip and Furrow Irrigation. Agronomy Journal 100:1062-1069.

Effects of Two Years of Manure and Nitrogen Fertilizer On Corn Yield, N and P Uptake, and Soil N and P Under Drip and Furrow Irrigation - (Experiment Station)

Berrada, A., Halvorson, A.D., Bartolo, M., Valliant, J. 2009. Effects of Two Years of Manure and Nitrogen Fertilizer On Corn Yield, N and P Uptake, and Soil N and P Under Drip and Furrow Irrigation. Agricultural Experiment Station Technical Report TR09-12. Colorado State University, Fort Collins, CO p. 6-11.

NITROGEN FERTILIZATION EFFECTS ON NITROUS OXIDE EMISSIONS FROM IRRIGATED CROPPING SYSTEMS - (Proceedings)

Halvorson, A.D., Del Grosso, S.J., Reule, C.A. Nitrogen fertilization effects on nitrous oxide emissions from irrigated cropping systems. Proc. of 2008 Great Plains Soil Fertility Conference. Denver, CO March 4-5, 2008. Kansas State University, Manhattan and Potash and Phosphate Institute, Brookings, SD. 12:28-22.

Residual Effects Of Manure and N Fertilizer On Corn Yield and Soil N and P Under Drip and Furrow Irrigation - (Proceedings)

Berrada, A., Halvorson, A.D., Bartolo, M., Valliant, J. Residual Effects Of Manure and N Fertilizer On Corn Yield and Soil N and P Under Drip and Furrow Irrigation. In Proc. of Great Plains Soil Fertility Conference. Denver, CO March 4-5, 2008. Kansas State University, Manhattan and Potash and Phosphate Institute, Brookings, SD. 12:245-251.

Management of Dryland Saline Seeps - (Book / Chapter)

Halvorson, A.D., Richardson, J. 2012. Management of Dryland Saline Seeps. Chapter 18. p. 561-589. In Agricultural Salinity Assessment and Management, Second Edition. (W.W. Wallender and K.K. Tanji, eds) ASCE Manuals and Reports on Engineering Practice No. 71, 2nd edition. Reston, VA.

Testing DAYCENT Model Simulations of Corn Yields and Nitrous Oxide Emissions in Irrigated Tillage Systems in Colorado - (Peer Reviewed Journal)

Del Grosso, S.J., Halvorson, A.D., Parton, W.J. 2008. Testing DAYCENT Model Simulations of Corn Yields and Nitrous Oxide Emissions in Irrigated Tillage Systems in Colorado. Journal of Environmental Quality 37:1383-1389.

Nitrogen, Tillage, and Crop Rotation Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems - (Peer Reviewed Journal)

Halvorson, A.D., Del Grosso, S.J., Reule, C.A. 2008. Nitrogen, Tillage, and Crop Rotation Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems. Journal of Environmental Quality 37:1337-1344.

Onion Response to Nitrogen and Irrigation Type Following Soybean in 2006 - (Experiment Station)

Halvorson, A.D., Bartolo, M., Reule, C.A., Berrada, A. 2008. Onion Response to Nitrogen and Irrigation Type Following Soybean in 2006. Agricultural Experiment Station Technical Report TR08-16, Colorado State University, Fort Collins, CO. p. 19-22.

Corn Response to Nitrogen Following Onion in Rotation - (Experiment Station)

Halvorson, A.D., Bartolo, M., Reule, C.A., Berrada, A. 2008. Corn Response to Nitrogen Following Onion in Rotation. Agricultural Experiment Station Technical Report TR08-16, Colorado State University, Fort Colins, CO. p. 10-14.

Irrigated, No-Till Corn and Barley Response to Nitrogen in Northern Colorado - (Peer Reviewed Journal)

Halvorson, A.D., Reule, C.A. 2007. Irrigated, No-Till Corn and Barley Response to Nitrogen in Northern Colorado. Agronomy Journal. 99:1521-1529.

Nitrous Oxide Emissions from Irrigated Cropping Systems in Colorado - (Abstract Only)

Halvorson, A.D., Del Grosso, S.J., Reule, C.A. 2007. Nitrous Oxide Emissions from Irrigated Cropping Systems in Colorado. ASA-CSSA-SSSA Annual Meeting Abstracts. CD-ROM.

Denitirification and N2O emission in arable soils: Effect of tillage, N source and soil moisture. - (Peer Reviewed Journal)

Liu, X.J., Mosier, A.R., Halvorson, A.D., Reule, C.A., Zhang, F. 2007. Denitirification and N2O emission in arable soils: Effect of tillage, N source and soil moisture. Journal of Soil Biology and Biochemistry. 39:2362-2370.

How to Enhance Soil Organic Carbon Sequestration - (Peer Reviewed Journal)

Halvorson, A.D., Reule, C.A. 2007. How to Enhance Soil Organic Carbon Sequestration. Fluid Journal. Vol. 15, No. 3, Issue #57, pp. 17-19.

Management Practices to Mitigate N2O Emissions from Agricultural Soils - (Abstract Only)

Halvorson, A.D. 2007. Management Practices to Mitigate N2O Emissions from Agricultural Soils. Meeting Abstract. Oral Presentation.

Crop Management Effects on Soil Carbon and Nitrogen in Northern Texas - (Proceedings)

Halvorson, A.D., Reule, C.A., Poole, J. 2007. Crop Management Effects on Soil Carbon and Nitrogen in Northern Texas. Fluid Fertilizer Foundation Symposium Proceedings. 24:67-74. Also a CD ROM publication.

Onion Response to Nitrogen Fertilization Under Drip and Furrow Irrigation - (Experiment Station)

Halvorson, A.D., Bartolo, M., Reule, C.A., Barrada, A. 2007. Onion Response to Nitrogen Fertilization Under Drip and Furrow Irrigation. In Colorado Agric. Exp. Sta. Technical Report TR07-14, Colorado State University, Fort Collins, CO. p. 49-53.

The Effects of Drip Irrigation and Fertilizer Rate on Corn Yield and Soil Salinity in the Arkansas River Valley - (Experiment Station)

Berrada, A., Halvorson, A.D., Bartolo, M., Valiant, J. 2007. The Effects of Drip Irrigation and Fertilizer Rate on Corn Yield and Soil Salinity in the Arkansas River Valley. In Colorado Agric. Exp. Sta. Technical Report TR07-14, Colorado State University, Fort Collins, CO. p. 6-12.

Nitrogen, Tillage, and Crop Rotation Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems. - (Abstract Only)

Halvorson, A.D., Del Grosso, S.J. 2007. Nitrogen, Tillage, and Crop Rotation Effects on Nitrous Oxide Emissions from Irrigated Cropping Systems. USDA Greenhouse Gas Symposium. In Abstracts of 4th USDA Symposium on Greenhouse Gases and Carbon Sequestration in Agriculture and Forestry. Feb. 6-8, 2007, Baltimore, MD.

Excess N in Soil-Crop Systems: Assessment and Integration with N Recommendations - (Abstract Only)

Huggins, D.R., D.B. Beegle, K. Bronson, A.D. Halvorson, J.J. Meisinger, J.S. Schepers. 2006. Excess N in Soil-Crop Systems: Assessment and Integration with N Recommendations. In Annual meetings abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI.

Nitrogen and tillage effects on wheat leaf spot diseases in the northern Great Plains - (Peer Reviewed Journal)

Krupinsky, J.M., Halvorson, A.D., Tanaka, D.L., Merrill, S.D. 2007. Nitrogen and tillage effects on wheat leaf spot diseases in the northern Great Plains. Agron. J. 99:562-569.

Onion Response to Nitrogen Fertilization Under Drip and Furrow Irrigation - (Proceedings)

Halvorson, A.D., Bartolo, M., Reule, C.A., Barrada, A. 2006. Onion Response to Nitrogen Fertilization Under Drip and Furrow Irrigation. National Allium Research Conference. p. 73-78.

The Effect of Subsurface Drip and Furrow Irrigation on the Movement of Salts and Nitrate in the Root Zone. - (Proceedings)

Berrada, A., Halvorson, A.D., Bartolo, M., Valliant, J. 2006. The Effect of Subsurface Drip and Furrow Irrigation on the Movement of Salts and Nitrate in the Root Zone.. Irrigation Associations Exposition and Technical Conference Proceedings. P. 1-13.

IRRIGATED CORN AND SOYBEAN RESPONSE TO NITROGeN UNDER NO-TILL IN NORTHERN COLORADO - (Peer Reviewed Journal)

Halvorson, A.D., Reule, C.A. 2006. Irrigated corn and soybean response to nitrogen under no-till in northern colorado. Agronomy Journal. 98:1367-1374.

THE EFFECTS OF SUBSURFACE DRIP AND FURROW IRRIGATION ON THE MOVEMENT OF SALTS AND NITRATE IN THE ROOT ZONE - (Proceedings)

Berrada, A.F., Halvorson, A.D., Bartolo, M.E., Valliant, J. 2006. The effects of subsurface drip and furrow irrigation on the movement of salts and nitrate in the root zone. Meeting Abstract.

MANAGING FOR EFFICIENT USE OF LIMITED IRRIGATION WATER: CURRENT PRACTICES, RESEARCH NEEDS, AND POTENTIAL ROLE OF MODELS. - (Abstract Only)

Halvorson, A.D., Hergert, G.W., Schlegel, A.J. 2006. Managing for efficient use of limited irrigation water: current practices, research needs, and potential role of models. Abstr., 36th Biological Systems Simulation Conference, April 11-13, Fort Collins, CO.

EVALUATION OF ACTIVE OPTICAL SENSORS FOR ASSESSMENT OF PLANT N IN IRRIGATED CORN - (Proceedings)

Bausch, W.C., Halvorson, A.D. 2006. Evaluation of active optical sensors for assessment of plant n in irrigated corn. Proceedings Great Plains Soil Fertility Conference. 11:149-154

ONION RESPONSE TO NITROGEN FERTILIZATION UNDER DRIP AND FURROW IRRIGATION - (Proceedings)

Halvorson, A.D., Bartolo, M., Reule, C.A., Berrada, A. 2006. Onion response to nitrogen fertilization under drip and furrow irrigation. Proceedings of Great Plains Soil Fertility Conference. Denver, CO, March 7-8, 2006. Kansas State University, Manhattan, Potash and Phosphate Institute. Brookings, SD. 11:7-12.

THE EFFECT OF MANURE AND N RATES ON CORN YIELD AND SALT AND NITRATE MOVEMENT IN THE SOIL UNDER FURROW AND DRIP IRRIGATION IN THE ARKANSAS RIVER VALLEY - (Proceedings)

Berrada, A., Halvorson, A.D., Bartolo, M., Valliant, J. 2006. The effect of manure and n rates on corn yield and salt and nitrate movement in the soil under furrow and drip irrigation in the arkansas river valley. Proceedings 2006 Great Plains Soil Fertility Conference, Denver, CO, March 7-8, 2006. Kansas State University, Manhattan and Potash and Phosphate Institute, Brookings, SD. 11-264-269.

NITROGEN AND CROP-ROTATION EFFECTS ON NO-TILL IRRIGATED CORN YIELDS - (Other)

Halvorson, A.D., Reule, C.A. 2006. Nitrogen and crop-rotation effects on no-till irrigated corn yields. Colorado Conservation Tillage Association Annual Conference Proceedings. Poster Presentation.

IRRIGATED CROPPING SYSTEM EFFECTS ON SOIL CARBON AND NITROGEN IN NORTHERN TEXAS. - (Proceedings)

Halvorson, A.D., Reule, C.A., Poole, J. 2006. Irrigated cropping system effects on soil carbon and nitrogen in northern texas. Fluid Fertilizer Foundation Symposium Proceedings. 23:126-132. Also CD ROM publication.

NET GLOBAL WARMING POTENTIAL AND GREENHOUSE GAS INTENSITY IN IRRIGATED CROPPING SYSTEMS IN NORTHEASTERN COLORADO - (Peer Reviewed Journal)

Mosier, A.R., Halvorson, A.D., Reule, C.A., Liu, X. 2006. Net global warming potential and greenhouse gas intensity in irrigated cropping systems in northeastern Colorado. Journal of Environmental Quality. 35:1584-1598.

TILLAGE AND NITROGEN EFFECTS ON SOIL CARBON AND GREENHOUSE GAS EMISSIONS UNDER IRRIGATED CONTINUOUS CORN - (Peer Reviewed Journal) - (01-Dec-05)

DRIP VERSUS FURROW IRRIGATION FOR ONION PRODUCTION IN THE COLORADO LOWER ARKANSAS RIVER VALLEY - (Abstract Only)

Halvorson, A.D., Bartolo, M., Reule, C.A., Berrada, A. 2006. Drip versus furrow irrigation for onion production in the Colorado Lower Arkansas river Valley. Soil and Water Conservation Society. Abstract. July 22-26-2006, Keystone, CO. J. Soil and Water Conserv. 61(3):229.

THE IMPACT OF NITROGEN PLACEMENT AND TILLAGE ON NO, N20, CH4 AND CO2 FLUXES FROM A CLAY LOAM SOIL. - (Peer Reviewed Journal)

Liu, X.J., Mosier, A.R., Halvorson, A.D., Zhang, F.S. 2006. The impact of nitrogen placement and tillage on NO, N2O, CH4 and CO2 fluxes from a clay loam soil. Plant and Soil Journal 280 (1-2): 177-188.

NITROGEN AND TILLAGE EFFECTS ON IRRIGATED CONTINUOUS CORN YIELDS - (Peer Reviewed Journal)

Halvorson, A.D., Mosier, A.R., Reule, C.A., Bausch, W.C. 2006. Nitrogen and tillage effects on irrigated continuous corn yields. Agronomy Journal. 98:63-71.

CHILE PEPPER RSPONSE TO NITROGEN FERTILIZATION IN THE ARKANSAS VALLEY OF COLORADO. COLORADO AGRICULTURAL EXPERIMENT STATION TECHNICAL BULLETIN TR05 - (Experiment Station)

Halvorson, A.D., Bartolo, M., Reule, C.A. 2007. Chile pepper rsponse to nitrogen fertilization in the Arkansas Valley of Colorado. Colorado Agric. Exp. Sta. Technical Report TR07-14, Colorado State University, Fort Collins, CO. p. 65-68

NITROGEN AND TILLAGE AFFECTS ON IRRIGATED CONTINUOUS CORN YIELDS - (Abstract Only)

Halvorson, A.D., Mosier, A.R., Reule, C.A., Bausch, W.C. 2005. Nitrogen and tillage affects on irrigated continuous corn yields. American Society of Agronomy Abstracts. CD-ROM Publication.

MANAGING GREENHOUSE GAS EMISSIONS IN SEMIARID AGROECOSYSTEMS - (Abstract Only)

Liebig, M.A., Schuman, G.E., Martens, D.A., Halvorson, A.D. 2005. Managing greenhouse gas emissions in semiarid agroecosystems. (No. 0-3). IN: Abstracts, 2005 Intern. Annual Mtg., ASA-CSSA-SSSA, Madison, WI.

TILLAGE AND NITROGEN APPLICATION EFFECTS ON NITROUS AND NITRIC OXIDE EMISSIONS FROM IRRIGATED CORN FIELDS. - (Peer Reviewed Journal)

Liu, X.J., Mosier, A.R., Halvorson, A.D., Zhang, F.S. 2005. Tillage and nitrogen application effects on nitrous and nitric oxide emissions from irrigated corn fields. Plant and Soil Journal. 276:235-249.

CORN RESPONSE TO NITROGEN FERTILIZATION IN A SOIL WITH HIGH RESIDUAL NITROGEN - (Peer Reviewed Journal)

Halvorson, A.D., Swhweissing, F., Bartolo, M., Reule, C.A. 2005. Corn response to nitrogen fertilization in a soil with high residual nitrogen. Agronomy Journal. 97:1222-1229.

EFFECTIVENESS OF RZWQM FOR SIMULATING ALTERNATIVE GREAT PLAINS CROPPING SYSTEMS - (Peer Reviewed Journal)

Saseendran, S.A., Nielsen, D.C., Ma, L., Ahuja, L.R., Vigil, M.F., Benjamin, J.G., Halvorson, A.D. 2005. Effectiveness of RZWQM for simulating alternative Great Plains cropping systems. Agronomy Journal 97:1183-1193.

EFFECTIVENESS OF RZWQM FOR SIMULATING ALTERNATIVE GREAT PLAINS CROPPING SYSTEMS - (Proceedings)

Anapalli, S.A., Nielsen, D.C., Ma, L., Ahuja, L.R., Vigil, M.F., Benjamin, J.G., Halvorson, A.D. 2005. Effectiveness of RZWQM for simulating alternative great plains cropping systems. Proceedings from the 35th Biological Systems Simulation Conference. April 19-21, 2005. Phoenix, AZ. P. 37-38.

TILLAGE AND NITROGEN EFFECTS ON SOIL CARBON AND GREENHOUSE GAS EMISSIONS UNDER IRRIGATED CONTINUOUS CORN - (Proceedings)

Halvorson, A.D., Mosier, A.R., Reule, C.A., Liu, X.J. 2005. Tillage and nitrogen effects on soil carbon and greenhouse gas emissions under irrigated continuous corn. Greenhouse Gas Emissions and Carbon Sequestration Symposium. p. 112.

SOIL ORGANIC CARBON AND NITROGEN CHANGES UNDER IRRIGATION IN NORTHERN TEXAS. - (Proceedings)

Halvorson, A.D., Reule, C.A., Poole, J. 2005. Soil organic carbon and nitrogen changes under irrigation in northern texas. Fluid Fertilizer Foundation Symposium Proceedings. Scottsdale, AZ. 22:154-159 and CD-ROM.

PHOSPHOROUS: AGRICULTURE AND THE ENVIRONMENT. - (Book / Chapter)

Bundy, L.G., Tunney, H., Halvorson, A.D. 2005. Phosphorous: agriculture and the environment. Soil Science Society of America Special Publication Book Chapter. Chapter 22. p. 685-727. (J.T.Sims and A.H. Sharpley (eds.).

CROP RESIDUE CARBON AND NITROGEN RETURNED TO THE SOIL IN IRRIGATED CROPPING SYSTEMS - (Abstract Only)

Halvorson, A.D., Schlegel, A., Mosier, A.R., Reule, C.A. 2004. Crop residue carbon and nitrogen returned to the soil in irrigated cropping systems. Agronomy Abstracts. CD-ROM.

IMPACT OF TILLAGE AND N-FERTILIZATION ON TRACE GAS EXCHANGE IN IRRIGATED CORN IN NORTHEASTERN COLORADO - (Abstract Only)

Mosier, A.R., Halvorson, A.D., Reule, C.A., Liu, X.J. 2004. Impact of tillage and n-fertilization on trace gas exchange in irrigated corn in northeastern colorado. American Society of Agronomy Abstracts. CD-ROM.

NITROGEN REQUIREMENTS OF IRRIGATED CORN IN THE COLORADO ARKANSAS VALLEY - (Experiment Station)

Halvorson, A.D., Schweissing, F., Bartolo, M., Reule, C.A. 2004. Nitrogen requirements of irrigated corn in the colorado arkansas valley. Colorado Agricultural Experiment Station Technical Report TR04-07, Colorado State University, Fort Collins, CO. p. 11-16.

MEASUSREMENT OF NET GLOBAL WARMING POTENTIAL IN THREE AGROECOSYSTEMS - (Peer Reviewed Journal)

Mosier, A.R., Halvorson, A.D., Peterson, G.A., Robertson, G.P., Sherrod, L.A. 2005. Measusrement of net global warming potential in three agroecosystems. Nutrient Cycling in Agroecosystems. pp. 72: 67-76.

PREDICTING WINTER WHEAT YIELD FROM TEMPERATURE AND RAINFALL - (Abstract Only)

Nielsen, D.C., Halvorson, A.D., Vigil, M.F., Byrne, P.F. 2004. Predicting winter wheat yield from temperature and rainfall. Agronomy Abstracts. Presented at the 2004 ASA-CSSA-SSSA International Annual Meeting. Oct. 31-Nov. 4, 2004. Seattle, WA

SOIL ERODIBILITY BY RAINFALL ON CRP LANDS CONVERTED TO CROP AND HAY PRODUCTION - (Abstract Only)

Merrill, S.D., Zeng, F., Huang, C., Tanaka, D.L., Darboux, F., Liebig, M.A., Halvorson, A.D. 2004. Soil erodibility by rainfall on crp lands converted to crop and hay production. Meeting Abstract.

RUNOFF, EROSION, AND SOIL EORDIBILITY ON CRP LANDS CONVERTED TO CROP AND HAY PRODUCTION - (Peer Reviewed Journal)

Zheng, F., Merrill, S.D., Huang, C., Tanaka, D.L., Darboux, F., Liebig, M.A., Halvorson, A.D. 2004. Runoff, erosion, and soil eordibility on crp lands converted to crop and hay production. Soil Science Society of America Journal.v. 68(4): 1332-1341.

SOIL ORGANIC CARBON LEVELS INCREASE IN TEXAS TRIALS. - (Peer Reviewed Journal)

Halvorson, A.D., Mosier, A.R., Reule, C.A. 2005. Soil organic carbon levels increase in texas trials. Fluid Journal. Vol. 13(1): 8-11.

NITROGEN FERTILIZATION AND ROTATION EFFECTS ON NO-TILL DRYLAND WHEAT PRODUCTION. - (Peer Reviewed Journal)

Halvorson, A.D., Nielsen, D.C., Reule, C.A. 2004. Nitrogen fertilization and rotation effects on no-till dryland wheat production. Agronomy Journal. 96:1196-1201.

CHANGES IN SOIL ORGANIC CARBON AND SOIL NITROGEN UNDER IRRIGATION IN NORTHERN TEXAS - (Proceedings)

Halvorson, A.D., Reule, C.A., Poole, J. 2004. Changes in soil organic carbon and soil nitrogen under irrigation in northern texas. Symposium Proceedings. 21:112-118.

IRRIGATED CORN RESPONSE TO NITROGEN FERTILIZATION IN THE COLORADO ARKANSAS VALLEY - (Proceedings)

Halvorson, A.D., Schwessing, F.C., Bartolo, M., Reule, C.A. 2004. Irrigated corn response to nitrogen fertilization in the colorado arkansas valley. Symposium Proceedings. 10: 157-163.

SATELITE IMAGERY FOR SMALL PLOT RESEARCH AND PRECISION FARMING - NITROGEN RELATIONSHIPS IN IRRIGATED CORN - (Proceedings)

Cipra, J., Halvorson, A.D. 2004. Satelite imagery for small plot research and precision farming - nitrogen relationships in irrigated corn. Symposium Proceedings. 10: 97-103.

INTEGRATED ASSESSMENT OF AGROECOSYSTEMS: CASE STUDIES FROM THE GREAT PLAINS AND WESTERN CORN BELT - (Abstract Only)

Liebig, M.A., Varvel, G.E., Tanaka, D.L., Merrill, S.D., Halvorson, A.D. 2004. Integrated assessment of agroecosystems: Case studies from the great plains and western corn belt. Soil and Water Conserv. Society annual meeting. 24-28 July 2004, St. Paul, MN. Abstract

NITROGEN, TILLAGE, AND IRRIGATED CROP ROTATION EFFECTS ON SOIL CARBON SEQUESTRATION - (Abstract Only)

Halvorson, A.D., Mosier, A.R., Reule, C.A., Bausch, W.C. 2003. Nitrogen, tillage, and irrigated crop rotation effects on soil carbon sequestration. Agronomy Abstracts. CD-ROM Computer Program.

DOES PHOSPHORUS FERTILIZER HAVE VALUE BEYOND THE YEAR OF APPLICATION? - (Abstract Only)

Halvorson, A.D. 2003. Does phosphorus fertilizer have value beyond the year of application?. Agronomy Abstracts. CD-ROM/Computer Program.

SATELLITE IMAGERY FOR SMALL PLOT PRECISION FARMING RESEARCH - NITROGEN RELATIONSHIPS IN IRRIGATED CORN - (Other)

Halvorson, A.D., Cipra, J. 2003. Satellite imagery for small plot precision farming research - nitrogen relationships in irrigated corn. Agronomy Abstracts. CD-ROM/Computer Program.

NO-TILL CROP PRODUCTION UNDER SPRINKLER IRRIGATION IN SOUTH PLATTE VALLEY - (Proceedings)

Halvorson, A.D., Mosier, A.R., Reule, C.A. No-till crop production under sprinkler irrigation in south platte valley. Proceedings of the Annual South Platte Forum. Colorado State University Information Series No. 97, p. 17.

MEASUREMENT AND MODELING OF SOIL-ATMOSPHERE N20, CH4 AND CO2 EXCHANGE FOR NET GLOBAL WARMING POTENTIAL IN AGROECOSYSTEMS. - (Abstract Only)

Mosier, A.R., Del Grosso, S., Halvorson, A.D., Parton, W. 2003. Measurement and modeling of soil-atmosphere N20, CH4 and CO2 exchange for net global warming potential in agroecosystems. Agron. Abs. CD-Romm/Computer Program.

IRRIGATED CROP MANAGEMENT EFFECTS ON PRODUCTIVITY, SOIL NITROGEN, AND SOIL CARBON - (Proceedings)

Halvorson, A.D., Mosier, A.R., Reule, C.A. 2003. Irrigated crop management effects on productivity, soil nitrogen, and soil carbon. Annual Fertilizer Industry Round Table. CD-ROM/Computer Program.

IRRIGATED CROP MANAGEMENT EFFECTS ON PRODUCTIVITY, SOIL NITROGEN, AND SOIL CARBON - (Proceedings)

Halvorson, A.D., Mosier, A.R., Reule, C.A. 2003. Irrigated crop management effects on productivity, soil nitrogen, and soil carbon. Annual Fertilizer Industry Round Table. Winston-Salem, NC. CD-ROM.

ECONOMICS ADVANTAGE OF AN INTENSIVE CROPPING SYSTEM COMPARED TO SPRING WHEAT-FALLOW IN THE NORTHERN GREAT PLAINS. (SYMPOSIA PROC.- DYNAMIC CROPPING SYSTEMS: PRINCIPLES, PROCESSES, AND CHALLENGES, PUB. BY USDA-ARS, MANDAN, ND) - (Proceedings)

Halvorson, A.D., Devuyst, E. 2003. Economics advantage of an intensive cropping system compared to spring wheat-fallow in the northern great plains. (symposia proc.- dynamic cropping systems: principles, processes, and challenges, pub. by usda-ars, mandan, nd). Symposium Proceedings. p. 256-261 and CD-ROM.

ECONOMICS OF ANNUAL CROPPING VERSUS CROP-FALLOW IN THE NORTHERN GREAT PLAINS AS INFLUENCED BY TILLAGE AND NITROGEN. - (Peer Reviewed Journal)

Devuyst, E.A., Halvorson, A.D. 2004. Economics of annual cropping versus crop-fallow in the northern great plains as influenced by tillage and nitrogen.Agronomy Journal. 96:148-153.

NITROGEN FERTILIZATION OF IRRIGATED CORN FOLLOWING ALFALFA AND WATERMELON AT AVRC (ARKANSAS VALLEY RESEARCH CENTER). (WILL BE PUBLISHED AS A COLORADO STATE UNIVERSITY AG. EXPERIMENT STATION TECHNICAL REPORT) - (Experiment Station)

Halvorson, Ardell, Schweissing, Frank, Reule, Curtis. 2003. Nitrogen fertilization of irrigated corn following alfalfa and watermelon at AVRC. Colorado Agric. Exp. Sta. Technical report TR03-8, Colorado State University. p. 13-18.

MODELING NITROGEN MANAGEMENT EFFECTS ON WINTER WHEAT PRODUCTION USING RZWQM AND CERES-WHEAT - (Peer Reviewed Journal)

Saseendran, S.A., Nielsen, D.C., Ma, L., Ahuja, L.R., Halvorson, A.D. 2003. Modeling nitrogen management effects on winter wheat production using RZWQM and CERES-Wheat. Agronomy Journal 96:615-630.

CROP MANAGEMENT EFFECTS ON PRODUCTIVITY, SOIL NITROGEN, AND SOIL CARBON - (Proceedings)

Halvorson, A.D., Reule, C.A., Poole, J., Follett, R.F. 2003. Crop management effects on productivity, soil nitrogen, and soil carbon. Fluid Fertilizer Foundation Symposium Proceedings. Scottsdale, AZ. 20:102-113.

NITROGEN AND CROP MANAGEMENT INFLUENCE IRRIGATED CORN YIELDS AND GREENHOUSE GAS EMISSIONS - (Proceedings)

Halvorson, A.D., Reule, C.A., Mosier, A.R. 2004. Nitrogen and crop management influence irrigated corn yields and greenhouse gas emissions. Symposium Proceedings. 10:21-27.

CARBON AS A POTENTIAL COMMODITY: IRRIGATED CROPLAND - (Proceedings)

Halvorson, A.D. 2002. Carbon as a potential commodity: irrigated cropland. Soil and Water Conservation Society Proceedings.

CARBON AS A POTENTIAL COMMODITY: IRRIGATED CROPLAND - (Proceedings)

Halvorson, A.D. 2002. Carbon as a potential commodity: irrigated cropland. Colorado Chapter of the Soil and Water Conservation Society Proceedings. CD-ROM.

FERTILIZER PHOSPHORUS MANAGEMENT OPTIONS FOR NO-TILL DRYLAND WINTER WHEAT - (Popular Publication)

Halvorson, A.D., Havlin, J.L., Reule, C.A. 2002. Fertilizer phosphorus management options for no-till dryland winter wheat. Better Crops. 86(4):4-7.

TILLAGE SYSTEM EFFECTS ON NITROGEN REQUIREMENTS FOR OPTIMUM CORN YIELDS - (Abstract Only)

Halvorson, A.D., Bausch, W.C., Duke, H.R., Reule, C.A. 2002. Tillage system effects on nitrogen requirements for optimum corn yields. Agronomy Abstracts. CD-ROM.

TILLAGE SYSTEM AND CROP ROTATION EFFECTS ON DRYLAND CROP YIELDS AND SOIL CARBON IN THE CENTRAL GREAT PLAINS. - (Peer Reviewed Journal)

Halvorson, A.D., Peterson, G.A., Reule, C.A. 2002. Tillage system and crop rotation effects on dryland crop yields and soil carbon in the central great plains. Agronomy Journal. 94:1429-1436.

INFLUENCE OF ROTATION ON PLANTING SOIL WATER CONTENT AND YIELD OF WINTER WHEAT - (Peer Reviewed Journal)

NIELSEN, D.C., VIGIL, M.F., ANDERSON, R.L., BOWMAN, R.A., BENJAMIN, J.G., HALVORSON, A.D. INFLUENCE OF ROTATION ON PLANTING SOIL WATER CONTENT AND YIELD OF WINTER WHEAT. AGRONOMY JOURNAL. 2002. v. 94 p. 962-967.

NUTRIENT - WATER INTERACTIONS. - (Book / Chapter)

Halvorson, A.D. 2002. Nutrient - Water Interactions. Marcel Dekker, Inc., New York, NY. pp. 889-890.

NITROGEN FERTILIZER USE EFFICIENCY BY FURROW IRRIGATED ONION AND CORN - (Peer Reviewed Journal)

Halvorson, A.D., Follett, R.F., Bartolo, M.E., Schweissing, F.C. 2002. Nitrogen fertilizer use efficiency by furrow irrigated onion and corn. Agronomy Journal. 94:442-449.

INFLUENCE OF SOIL FERTILITY LEVEL ON CARBON SEQUESTRATION UNDER IRRIGATED CORN - (Proceedings)

Halvorson, A.D., Reule, C.A., Poole, J., Follett, R.F. 2002. Influence of soil fertility level on carbon sequestration under irrigated corn. Fluid Fertilizer Foundation Symposium Proceedings. Scottsdale, AZ. 19:245-252.

NITROGEN FERTILIZATION OF IRRIGATED CORN IN A HIGH RESIDUAL SOIL N ENVIRONMENT IN THE ARKANSAS RIVER VALLEY. - (Proceedings)

Halvorson, A.D., Schweissing, F., Reule, C.A. 2002. Nitrogen fertilization of irrigated corn in a high residual soil n environment in the arkansas river valley. Proceedings of Great Plains Soil Fertility Conference. Kansas State University, Manhattan and Potash and Phospate Institue, Brookings, SD. 9:138-142.

RESPONSE OF IRRIGATED CORN TO NITROGEN FERTILITY LEVEL WITHIN TWO TILLAGE SYSTEMS - (Proceedings)

Halvorson, A.D., Bausch, W.C., Duke, H.R., Reule, C.A. 2002. Response of irrigated corn to nitrogen fertility level within two tillage systems. Proceedings of Great Plains Soil Fertility Conference. Kansas State University, Manhattan and Potash and Phosphate Institute, Brookings, SD. 9:132-137.

TILLAGE, NITROGEN, AND CROPPING SYSTEM EFFECTS ON SOIL CARBON SEQUESTRATION - (Peer Reviewed Journal)

Halvorson, A.D., Wienhold, B.J., Black, A.L. 2002. Tillage, nitrogen, and cropping system effects on soil carbon sequestration. Soil Science Society of America Journal. 66(3):906-912.

CROP ROTATION EFFECT ON WATER CONTENT AT WHEAT PLANTING AND WHEAT YIELD - (Abstract Only) - (28-Aug-01)

EVALUATION OF SOIL SURVEY SCALE FOR ZONE MANATGEMENT OF SITE-SPECIFIC NITROGEN - (Peer Reviewed Journal)

Franzen, D.W., Hopkins, D.H., Sweeney, M.D., Ulmer, M.K., Halvorson, A.D. 2002. Evaluation of soil survey scale for zone manatgement of site-specific nitrogen. Agronomy Journal. 94:381-389.

TILLAGE AND NITROGEN FERTILIZATION INFLUENCES ON GRAIN AND SOIL NITROGEN IN A SPRING WHEAT-FALLOW SYSTEM - (Peer Reviewed Journal)

Halvorson, A.D., Wienhold, B.J., Black, A.L. 2001. Tillage and nitrogen fertilization influences on grain and soil nitrogen in a spring wheat-fallow system. Agronomy Journal. 93:1130-1135.

TILLAGE AND NITROGEN FERTILIZATION INFLUENCE GRAIN AND SOIL NITROGEN IN AN ANNUAL CROPPING SYSTEM. - (Peer Reviewed Journal)

Halvorson, A.D., Wienhold, B.J., Black, A.L. 2001. Tillage and nitrogen fertilization influence grain and soil nitrogen in an annual cropping system.. Agronomy Journal. 93:836-841.

SALINE SEEP. - (Book / Chapter)

Halvorson, A.D. 2003. Saline seep. Encyclopedia of Water Science. pp. 826-828.

MULTIPLE YEAR RESPONSE OF IRRIGATED WINTER WHEAT TO A SINGLE APPLICATION OF PHOSPORUS - (Popular Publication)

Halvorson, A.D., Reule, C.A. 2001. Multiple year response of irrigated winter wheat to a single application of phosporus. Better Crops. 85(1): 14-17.

CROPPING SYSTEM EFFECTS ON SOIL CARON AND NITROGEN - (Proceedings)

Halvorson, A.D., Reule, C.A., Poole, J., Follett, R.F. 2001. Cropping system effects on soil caron and nitrogen. Fluid Fertilizer Foundation Symposium Proceedings. Scottsdale, AZ. 18_116-124.

NITROGEN FERTILIZER USE EFFICIENCY BY ONION AND CORN IN ROTATION - (Abstract Only)

Halvorson, A.D., Follett, R.F., Bartalo, M., Schweissing, F. 2000. Nitrogen fertilizer use efficiency by onion and corn in rotation. Agronomy Abstracts. 92:353.

MANAGEMENT ZONES FOR SOIL N AND P LEVELS IN THE NORTHERN GREAT PLAINS - (Proceedings)

Franzen, D.W., Halvorson, A.D., Hofman, V.L. 2000. Management zones for soil n and p levels in the northern great plains. International Conference on Precision Agriculture Abstracts & Proceedings. CD-ROM.

TILLAGE AND NITROGEN FERTILIZATION AFFECT SOIL CARBON SEQUESTRATION - (Peer Reviewed Journal)

Halvorson, A.D., Reule, C.A., Murphy, L. 2000. Tillage and nitrogen fertilization affect soil carbon sequestration. Fluid Journal 8(3): 8-11.

NITROGEN FERTILIZATION, TILLAGE, AND CROPPING SYSTEM INFLUENCES ON SOIL ORGANIC CARBON - (Abstract Only)

Halvorson, A.D. 2000. Nitrogen fertilization, tillage, and cropping system influences on soil organic carbon. American Chemical Society Abstracts.

NITROGEN FERTILIZATION, TILLAGE, AND CROPPING SYSTEM INFLUENCES ON SOIL ORGANIC CARBON - (Abstract Only)

Halvorson, A.D. 2000. Nitrogen fertilization, tillage, and cropping system influences on soil organic carbon. American Chemical Society Abstracts.

FERTILIZER - (Book / Chapter)

Halvorson, A.D. 2001. Fertilizer. Plant Sciences for Students. Richard Robinson, ed. Macmillan Reference USA, New York, NY. Vol. 2, p. 135-137.

INLFUENCE OF SOIL FERTILITY ON CARBON SEQUESTRATION - (Proceedings)

Halvorson, A.D., Murphy, L., Reule, C.A., Follett, R.F., Poole, J. 2000. Inlfuence of soil fertility on carbon sequestration. Fluid Fertilizer Foundation Symposium Proceedings. Scottsdale, AZ. 17:204-211.

LONG-TERM TILLAGE AND NITROGEN FERTILIZATION EFFECT ON C SEQUESTRATION - (Proceedings)

Halvorson, A.D., Wienhold, B.J., Reule, C.A. 2000. Long-term tillage and nitrogen fertilization effect on c sequestration. Proceedings Great Plains Soil Fertility Conference. Kansas State Unviersity, Manhattan and Potash and Phosphate Institute, Brookings, SD. 8:16-21.

CAN NARROW ROW SPACING IMPROVE SUNFLOWER AND CORN YIELDS IN THE GREAT PLAINS? - (Proceedings)

Halvorson, A.D., Fjell, D.L., Gerik, T.J. 2000. Can narrow row spacing improve sunflower and corn yields in the great plains?. Proceedings Great Plains Soil Fertility Conference. Kansas tate University, Manhattan and Potash and Phosphate Institute, Brookings, SD. 8_158-164.

NITROGEN MINERALIZATION RATES ACROSS A MANAGEMENT INTENSITY GRADIENT IN NORTHERN GREAT PLAINS - (Proceedings)

WIENHOLD, B.J., HALVORSON, A.D. NITROGEN MINERALIZATION RATES ACROSS A MANAGEMENT INTENSITY GRADIENT IN NORTHERN GREAT PLAINS. PROCEEDINGS OF GREAT PLAINS SOIL FERTILITY CONFERENCE, 8:135-140. 2000.

SPATIAL NUTRIENT RELATIONSHIPS AND PROFITABILITY OF VARIABLE-RATE FERTILIZER APPLICATION IN A WHEAT AND SUNFLOWER ROTATION - (Proceedings)

Franzen, D.W., Halvorson, A.D., Hofman, V.L. 2000. Spatial nutrient relationships and profitability of variable-rate fertilizer application in a wheat and sunflower rotation. Proceedings of Great Plains Soil Fertility Conference. 8:88-93.

REGIONAL N FERTILIZER RECOMMENDATIONS FOR DRYLAND WHEAT - (Proceedings)

Soltanpour, P.N., Schlegel, A., Cardon, G., Waskom, R., Halvorson, A.D. 2000. Regional n fertilizer recommendations for dryland wheat. Proceedings of Great Plains Soil Fertility Conference. 8:335-340.

SPRING WHEAT RESPONSE TO TILLAGE AND N FERTILIZATION IN ROTATION WITH SUNFLOWER AND WINTER WHEAT - (Peer Reviewed Journal)

Halvorson, A.D., Black, A.L., Krupinsky, J.M., Merrill, S.D., Wienhold, B.J., Tanaka, D.L. 2000. Spring wheat response to tillage and n fertilization in rotation with sunflower and winter wheat. Agronomy Journal. 92:136-144.

LONG-TERM NITROGEN FERTILIZATION BENEFITS SOIL CARBON SEQUESTRATION - (Popular Publication)

Halvorson, A.D., Reule, C.A. 1999. Long-term nitrogen fertilization benefits soil carbon sequestration. Better Crops with Plant Food. 83(4): 16-20.

ROW SPACING EFFECTS ON NO-TILL DRYLAND CORN GRAIN YIELDS - (Abstract Only)

Halvorson, A.D. 1999. Row spacing effects on no-till dryland corn grain yields. Agronomy Abstracts. 91:101.

ASSESSMENT OF PUBLISHED SOIL SURVEYS AS A BASIS FOR DELINEATING SAMPLING ZONES FOR SITE-SPECIFIC NUTRIENT APPLICATION. - (Abstract Only)

Franzen, D.W., Sweeney, M.D., Hopkins, D.G., Ulmer, M.G., Halvorson, A.D., Peck, T.R. 1999. Assessment of published soil surveys as a basis for delineating sampling zones for site-specific nutrient application. Agronomy bstracts. 91:311.

SPRING WHEAT RESPONSE TO TILLAGE SYSTEM AND N FERILIZATION WITHIN A CROP-FALLOW SYSTEM - (Peer Reviewed Journal)

Halvorson, A.D., Black, A.L., Krupinsky, J.M., Merrill, S.D., Wienhold, B.J., Tanaka, D.L. 2000. Spring wheat response to tillage system and n ferilization within a crop-fallow system. Agronomy Journal. 92(2):288-294.

CONSIDERATION OF N ACCUMULATION IN PREVIOUS NON-LEGUME CROPS FOR SUBSEQUENT N RECOMMENDATIONS - (Abstract Only)

Franzen, D.W., Hofman, V.L., Reitmeier, L.J., Giles, J.F., Cattanach, V.L., Halvorson, A.D. 1998. Consideration of n accumulation in previous non-legume crops for subsequent n recommendations. Agronomy Abstracts. 90:307.

NORTH AMERICAN AGRICULTURAL SOIL ORGANIC MATTER SITE NETWORK: THE AMERICANGREAT PLAINS - (Abstract Only) - (30-Oct-97)

LONG-TERM CLIMATE AFFECTS WIND EROSION HAZARD OF SPRING WHEAT-FALLOW MORE THAN TILLAGE - (Abstract Only) - (15-Aug-96)