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United States Department of Agriculture

Agricultural Research Service

Rodrick D. Lentz (Rick)

Research Soil Scientist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Manure and inorganic fertilizer effects on carbon balance and losses in irrigated corn - (Popular Publication)
Lentz, R.D., Lehrsch, G.A. 2014. Manure and fertilizer effects on organic and inorganic carbon losses and budget for an irrigated corn field. CSA News. 59(6):14,19.
Nutrient loads and sediment losses in sprinkler irrigation runoff affected by compost and manure - (Peer Reviewed Journal) - (26-Mar-14)
Erosion: Irrigation-induced - (Review Article) - (22-Feb-14)
Manure and fertilizer effects on organic and inorganic carbon losses and budget for an irrigated corn field - (Peer Reviewed Journal)
Lentz, R.D., Lehrsch, G.A. 2014. Manure and fertilizer effects on organic and inorganic carbon losses and budget for an irrigated corn field. Soil Science Society of America Journal. 78:987-1002.
Hardwood biochar influences calcareous soil physicochemical and microbiological status Reprint Icon - (Peer Reviewed Journal)
Ippolito, J.A., Stromberger, M., Lentz, R.D., Dungan, R.S. 2014. Hardwood biochar influences calcareous soil physicochemical and microbiological status. Journal of Environmental Quality. 43(2):681-689.
Reducing nutrient losses in runoff from furrow irrigation - (Proceedings)
Lentz, R.D., Westermann, D., Lehrsch, G.A. 2013. Reducing nutrient losses in runoff from furrow irrigation. In: S. Pettygrove (ed.), Western Nutrient Management Conference Proceedings, March 7-8, 2013, Reno, Nevada. Vol. 10. p. 60-66.
Addition of activated switchgrass biochar to an aridic subsoil increases microbial nitrogen cycling gene abundances - (Peer Reviewed Journal)
Ducey, T.F., Ippolito, J.A., Cantrell, K.B., Novak, J.M., Lentz, R.D. 2013. Addition of activated switchgrass biochar to an aridic subsoil increases microbial nitrogen cycling gene abundances. Applied Soil Ecology. 65:65-72.
Delayed sample filtration and storage effects on dissolved nutrients measured in agricultural runoff - (Peer Reviewed Journal)
Lentz, R.D. 2013. Delayed sample filtration and storage effects on dissolved nutrients measured in agricultural runoff. Communications in Soil Science and Plant Analysis. 44:2952-2960.
Nitrogen availability and uptake by sugarbeet in years following manure application - (Peer Reviewed Journal)
Lentz, R.D., Lehrsch, G.A. 2012. Nitrogen availability and uptake by sugarbeet in years following manure application. International Journal of Agronomy. DOI:10.1155/2012/120429.
Nitrogen Availability From Manure in Years Following a One-Time Application - (Proceedings)
Lentz, R.D., Lehrsch, G.A. 2012. Nitrogen Availability From Manure in Years Following a One-Time Application. In: A. Moore and M. M. Marti, editors. Proceedings of the Idaho Nutrient Management Conference, Jerome, Idaho. March 6, 2012, University of Idaho Extension, Twin Falls, Idaho. 6: p. 61-67.
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.
Net nitrogen mineralization from past year's manure and fertilizer applications. - (Peer Reviewed Journal)
Lentz, R.D., Lehrsch, G.A. 2012. Net nitrogen mineralization from past year's manure and fertilizer applications. Soil Science Society of America Journal. DOI:10.2136/sssaj2011.0282.
Biochar and manure affects calcareous soil and corn silage nutrient concentrations and uptake - (Peer Reviewed Journal)
Lentz, R.D., Ippolito, J.A. 2012. Biochar and manure affects calcareous soil and corn silage nutrient concentrations and uptake. Journal of Environmental Quality. 41(4): 1033-1043 DOI: 10.2134/jeq2011.0126.
Biochar Usage: Pros and Cons - (Proceedings)
Ippolito, J.A., Lentz, R.D., Novak, J.M., Spokas, K.A., Collins, H.P., Streubel, J. 2011. Biochar Usage: Pros and Cons. Western Nutrient Management Conference Proceedings. 9:93-98.
Dairy manure nitrogen availability in eroded and noneroded soil for sugarbeet followed by small grains - (Peer Reviewed Journal)
Lentz, R.D., Lehrsch, G.A., Brown, B., Johnson-Maynard, J., Leytem, A.B. 2011. Dairy manure nitrogen availability in eroded and noneroded soil for sugarbeet followed by small grains. Agronomy Journal. 103:628-643.
Nutrients in runoff from a furrow-irrigated field after incorporating inorganic fertilizer or manure - (Peer Reviewed Journal)
Lentz, R.D., Lehrsch, G.A. 2010. Nutrients in runoff from a furrow-irrigated field after incorporating inorganic fertilizer or manure. Journal of Environmental Quality. 39:1402-1415(2010).
Managing runoff water quality from recently manured, furrow irrigated fields - (Peer Reviewed Journal)
Lentz, R.D., Westermann, D.T. 2010. Managing Runoff Water Quality From Recently Manured, Furrow Irrigated Fields. Soil Science Society of America Journal. 74(4):1310-1319.
Biochar: A soil amendment worth considering - (Popular Publication)
Ippolito, J.A., Lentz, R.D., Novak, J.M. 2009. Biochar: A soil amendment worth considering. University of Idaho Miscellaneous Publication. 2(2):1-2.
Long-term polyacrylamide formulation effects on soil erosion, water infiltration, and yields of furrow-irrigated crops - (Peer Reviewed Journal)
Lentz, R.D., Sojka, R.E. 2009. Long-term polyacrylamide formulation effects on soil erosion, water infiltration, and yields of furrow-irrigated crops. Agronomy Journal. 101(2):305-314.
Seepage from channeled flows as influenced by PAM and sediment - (Abstract Only) - (01-Jul-08)
Manure effects on soil N in eroded and non-eroded, sprinkler-irrigated soil - (Abstract Only) - (25-Jun-08)
Toxicity of anionic polyacrylamide formulations when used for erosion control in agriculture - (Peer Reviewed Journal)
Weston, D.P., Lentz, R.D., Cahn, M.D., Ogle, R.S., Rothert, A.K., Lydy, M.J. 2009. Toxicity of anionic polyacrylamide formulations when used for erosion control in agriculture. Journal of Environmental Quality. 38:238-247.
Acrylamide monomer leaching from polyacrylamide-treated irrigation furrows - (Peer Reviewed Journal)
Lentz, R.D., Andrawes, F.F., Barvenik, F.W., Koehn, A.C. 2008. Acrylamide monomer leaching from polyacrylamide-treated irrigation furrows. Journal of Environmental Quality. 37:2293-2298.
USDA-ARS Perspective on Pam - (Proceedings)
Lentz, R.D. 2009. USDA-ARS perspective on PAM. Proceedings of the PAM and PAM Alternatives Workshop, February 26-27, 2008, Reno, Nevada. p. 3-5.
PAM in irrigated agriculture: Processes and soil-PAM interactions influencing canal sealing - (Proceedings)
Lentz, R.D. 2009. PAM in irrigated agriculture: Processes and soil-PAM interactions influencing canal sealing. Proceedings of PAM and PAM Alternatives Workshop, February 26-27, 2008, Reno, Nevada. p. 6-14.
Polyacrylamide treatments for reducing seepage in soil-lined reservoirs: A field evaluation - (Peer Reviewed Journal)
Lentz, R.D., Kincaid, D.C. 2008. Polyacrylamide treatments for reducing seepage in soil-lined reservoirs: A field evaluation. Transactions of the ASABE. 51(2):535-544.
Sediment and polyacrylamide effects on seepage losses from channeled flows - (Peer Reviewed Journal)
Lentz, R.D., Freeborn, L.L. 2007. Sediment and polyacrylamide effects on seepage losses from channeled flows. Soil Science. 172(10):770-789.
Inhibiting Water Infiltration into Soils with Cross-Linked Polyacrylamide: Seepage Reduction for Irrigated Agriculture - (Peer Reviewed Journal)
Lentz, R.D. 2007. Inhibiting water infiltration into soils with cross-linked polyacrylamide: Seepage reduction for irrigated agriculture. Soil Science Society of America Journal. 71:1352-1362.
Solute Response to Changing Nutrient Loads in Soil and Walled, Ceramic-Cup Samplers under Continuous Extraction - (Abstract Only)
Lentz, R.D. 2006. Solute response to changing nutrient loads in soil and walled, ceramic-cup samplers under continuous extraction [abstract]. American Society of Agronomy-Crop Science Society of America-Soil Science Society of America. Paper No. 24203.
Solute Response to Changing Nutrient Loads in Soil and Walled, Ceramic-Cup Samplers under Continuous Extraction - (Peer Reviewed Journal)
Lentz, R.D. 2006. Solute response to changing nutrient loads in soil and walled, ceramic-cup samplers under continuous extraction. Journal of Environmental Quality. 35:1863-1872.
Polyacrylamide (Pam) in Agriculture and Environmental Land Management - (Peer Reviewed Journal)
Sojka, R.E., Bjorneberg, D.L., Entry, J.A., Lentz, R.D., Orts, W.J. 2007. Polyacrylamide (PAM) in agriculture and environmental land management. Advances in Agronomy. 92:75-162.
Dairy Manure/compost N Release for Sugarbeets and Subsequent Wheat - (Abstract Only)
Brown, B., Johnson-Maynard, J., Leytem, A.B., Lentz, R.D., Lehrsch, G.A. 2006. Dairy manure/compost n release for sugarbeets and subsequent wheat. Proceedings of the Idaho Nutrient Management Conference. III:13-18.
Sequential Tension Autosampler -- Operating Program - (Government Publication)
Lentz, R.D. 2006. Sequential tension autosampler -- operating program. Northwest Irrigation and Soils Research Laboratory Technical Notes.
Automated System for Collecting Multiple, Sequential Samples from Soil Water Samplers under Continuous Vacuum - (Abstract Only)
Lentz, R.D. 2005. Automated system for collecting multiple, sequential samples from soil water samplers under continuous vacuum [abstract]. American Society of Agronomy-Crop Science Society of America-Soil Science Society of America. Paper No. 5280.
Automated System for Collecting Multiple Sequential Samples from Soil Water Samplers under Continuous Vacuum Reprint Icon - (Peer Reviewed Journal)
Lentz, R.D. 2006. Automated system for collecting multiple sequential samples from soil water samplers under continuous vacuum. Communication in Soil Science and Plant Analysis. 37:1195-1203.
Sediment Pond Effectiveness for Removing P from Pam-Treated Irrigation Furrows - (Peer Reviewed Journal)
Bjorneberg, D.L., Lentz, R.D. 2005. Sediment pond effectiveness for removing p from pam-treated irrigation furrows. Applied Engineering in Agriculture. 21(2):227-236.
Fate of Acrylamide Monomer in Percolation Water Beneath Pam-Treated Irrigation Furrows - (Abstract Only) - (16-Aug-04)
Polyacrylamide: One of Irrigation's Most Versatile Tools - (Abstract Only)
Lentz, R.D. 2004. Polyacrylamide: One of the irrigation's most versatile tools. In: Brown, J., editor. Proceedings of the 15th Annual South Platte Forum, October 27-28, 2004, Longmont, Colorado. p. 11.
Polymer and Sprinkler Droplet Energy Effects on Sugar Beet Emergence, Soil Penetration Resistance, and Aggregate Stability - (Peer Reviewed Journal)
Lehrsch, G.A., Lentz, R.D., Kincaid, D.C. 2005. Polymer and sprinkler droplet energy effects on sugar beet emergence, soil penetration resistance, and aggregate stability. Plant and Soil. 273:1-13.
Sediment Pond Effectiveness for Removing P from Pam-Treated Irrigated Furrows - (Proceedings)
Bjorneberg, D.L., Lentz, R.D. 2003. Sediment pond effectiveness for removing P from pam-treated irrigated furrows. In: Proceedings of the ASAE Annual International Meeting, July 27-30, 2003, Las Vegas, Nevada. 2003 CDROM.
Manure Application, Tillage, and Furrow Irrigation Management Effects on Runoff Nutrient Losses - (Abstract Only) - (01-Apr-03)
Manure Application, Tillage, and Furrow Irrigation Management Effects on Runoff Nutrient Losses - (Abstract Only)
Lentz, R.D., Westermann, D.T., Peckenpaugh, R.E. 2004. Manure application, tillage, and furrow irrigation management effects on runoff nutrient losses. Proceedings of Sustainable Land Application Conference, January 4-8, 2004, Lake Buena Vista, Florida. p. 109.
Inhibiting Water Infiltration with Pam and Surfactants: Applications for Irrigated Agriculture - (Peer Reviewed Journal)
Lentz, R.D. 2003. Inhibiting water infiltration with pam and surfactants: applications for irrigated agriculture. Journal of Soil and Water Conservation. 58(5):290-300.
Pam and Straw Residue Effects on Irrigation Furrow Erosion and Infiltration - (Peer Reviewed Journal)
Lentz, R.D., Bjorneberg, D.L. 2003. Pam and straw residue effects on irrigation furrow erosion and infiltration. Journal of Soil and Water Conservation. 58(5):312-319.
Managing Erosion and Infiltration in Steeply Sloping Irrigation Furrows with Polyacrylamide - (Abstract Only)
Lentz, R.D., Koehn, A.C., Peckenpaugh, R.E. 2003. Managing erosion and infiltration in steeply sloping irrigation furrows with polyacrylamide. Proceedings of Soil Science Society Of America Annual Meeting, November 2-6, 2003, Denver, Colorado. 2003 CD-ROM.
Pam and Straw Residue Effects on Irrigation Furrow Erosion and Infiltration - (Abstract Only) - (10-Dec-00)
Deep Percolation and Preferential Flow under Conventionally and Pam-Treated Irrigation Furrows - (Abstract Only) - (10-Dec-00)
Pam and Straw Residue Effects on Irrigation Furrow Erosion and Infiltration - (Proceedings) - (01-Sep-00)
Deep Percolation and Preferential Flow under Conventionally and Pam-Treatedirrigation Furrows - (Proceedings) - (01-Sep-00)
Pam-Treated Furrow Irrigation: Evidence of Preferential Flow Effects - (Abstract Only) - (01-Aug-00)
Nutrient Losses from Manured, Furrow-Irrigated Fields - (Abstract Only) - (01-Aug-00)
Polyacrylamide for Surface Irrigation to Increase Nutrient Use Efficiency and Protect Water Quality - (Peer Reviewed Journal) - (01-Jun-00)
Unique Aspects of Modeling Irrigation-Induced Soil Erosion - (Peer Reviewed Journal) - (09-Dec-99)
Use of Pam in Surface Irrigation to Increase Nutrient Use Efficiency and Protect Soil and Water Quality - (Proceedings) - (01-Aug-99)
Applying Polymers to Irrigation Water: Evaluating Strategies for Furrow Erosion Control - (Proceedings) - (01-Jul-99)
Influence of Irrigation Water Properties on Furrow Infiltration - (Proceedings) - (24-May-99)
Analysis of Residual Acrylamide in Field Crops - (Peer Reviewed Journal) - (01-Mar-99)
Comparing Deep Percolation Soil Water and Solute Losses from Conventional Vs. Polyacrylamide-Managed Furrow Irrigation - (Proceedings) - (16-Nov-98)
Polyacrylamide Effects on Infiltration in Irrigated Agriculture - (Peer Reviewed Journal) - (05-May-98)
Monitoring Water/solute Movement in Furrow-Irrigated Soils with Percolation Samplers and Rpm (Tdr) Sensors - (Abstract Only) - (01-Jun-97)
Calibration of Cs-615 (Rpm) Soil Water Sensors in a Silt Loam Soil - (Abstract Only) - (01-Jun-97)
Reducing Phosphorus Losses from Surface-Irrigated Fields: Emerging Polyacrylamide Technology - (Peer Reviewed Journal) - (28-Apr-97)
Polyacrylamide As a Tool for Controlling Sediment Runoff and Improving Infiltration under Furrow Irrigation - (Proceedings) - (24-Apr-97)
Polyacrylamide (Pam) for Erosion Control - (Review Article) - (01-Jan-97)
Reducing Furrow Irrigation Erosion with Polyacrylamide (Pam) - (Peer Reviewed Journal) - (25-Jul-96)
Irrigation Water Quality Alters Furrow Erosion and Infiltration - (Peer Reviewed Journal) - (28-Jun-96)
Five-Year Research Summary Using Pam in Furrow Irrigation - (Other) - (06-Jun-96)
Five-Year Research Summary Using Pam in Furrow Irrigation - (Proceedings) - (06-May-96)
Pam Conformation Effects on Furrow Erosion Mitigation Efficacy - (Proceedings) - (06-May-96)
A Pam Primer: a Brief History of Pam and Pam-Related Issues - (Other) - (06-May-96)
Net and Tension Infiltration Effects of Pam in Furrow Irrigation - (Other) - (06-May-96)
Fate of Acrylamide Monomer Following Application of Polyacrylamide to Cropland - (Other) - (06-May-96)
Pam Spray Effects on Sugarbeet Emergence - (Proceedings) - (06-May-96)
Polyacrylamide (Pam) for Furrow-Irrigation Erosion Control Control - (Peer Reviewed Journal) - (02-Jan-96)
Polyacrylamide Sprayed on Soil Surfaces Can Stabilize Soil Aggregates - (Proceedings) - (02-Jan-96)
Estimating Polyacrylamide Concentration in Irrigation Water - (Peer Reviewed Journal) - (01-Jan-96)
Spray Patterns from Fan-Type Nozzle for Applying Pam to Soil Surfaces - (Proceedings) - (12-Dec-95)
Polyacrylamide Application to Control Furrow Irrigation-Induced Erosion - (Proceedings) - (29-Nov-95)
Irrigation (Agriculture): Use of Water-Soluble Polyacrylamide to Control Furrow-Irrigation Induced Erosion - (Book / Chapter) - (14-Jan-95)
Precipitation (Meteorology): Influence of Wind-Terrain Interactions on Rainfall Distribution - (Book / Chapter) - (14-Jan-95)
Last Modified: 11/24/2008
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