Principal InvestigatorAuthor(s) / Publication
Arai Xu, S., Gentry, L., Chen, K. and Arai, Y. 2020. Intensive agricultural management induced subsurface accumulation of labile phosphorus in tile line dominated Midwestern agricultural soils. Soil Science Society of America Journal https://doi/full/10.1002/saj2.20089
ArmstrongArmstrong, S.D., R. Roth, and C. Lacey. 2017. Do Conventional Comparative Cost Efficiency Analyses Adequately Value Nitrogen Loss reduction best management practices? Agriculture Research & Technology,
ArmstrongRoth. R., M.D. Ruffatti, P.D. O'Rourke, and S.D. Armstrong. 2018. A cost analysis approach to valuating cover crop environmental and nitrogen cycling benefits: A central Illinois on-farm case study. Agricultural Systems, Agricultural Systems 159:67-77
ArmstrongRuffatti, M.D., R. Roth, C. Lacey, and S.D. Armstrong. 2019. Impacts of nitrogen application timing and cover crop inclusion on subsurface drainage water quality. Agricultural Water Management 211:81-88.
ArmstrongThompson, NM, Armstrong, SD, Roth, RT, Ruffatti, MD, Reeling, CJ. Short‐run net returns to a cereal rye cover crop mix in a midwest corn–soybean rotation. Agronomy Journal. 2020; 112: 1068– 1083.

ChristiansonChandrasoma, J.M., R.D. Christianson, and L.E. Christianson. 2019 (First Look). Saturated buffers: What is their potential impact across the US Midwest? Agricultural & Environmental Letters.
ChristiansonHertzberger, A., C.M Pittlekow, R.D. Harmel, and L. Christianson. The MANAGE Drain Concentration database: A new tool compiling North American drainage nutrient concentrations. Agricultural Water Management 216 (2019) 113–117.
ChristiansonHertzberger, A., R.D. Harmel, C.M. Pittelkow, and L. Christianson. Analysis of the MANAGE Drain Concentration database to evaluate agricultural management effects on drainage nutrient concentrations. Journal of Soil and Water Conservation.
Christianson and PittelkowPreza Fontes, Giovani, Rabin Bhattarai, Laura Christianson, and Cameron Pittlekow. 2019. Combining Environmental Monitoring and Remote Sensing Technologies to Evaluate Cropping System Nitrogen Dynamics at the Field-Scale. Front. Sustain. Food Syst., 20 February 2019 |
Christianson and PittelkowPreza‐Fontes, G, Nafziger, ED, Christianson, LE, Pittelkow, CM. Relationship of in‐season soil nitrogen concentration with corn yield and potential nitrogen losses. Soil Sci Soc Am J. 2020; 1– 11.

Christianson and PittelkowYuan, M, Fernández, FG, Pittelkow, CM, Greer, KD, Schaefer, D. Soil and crop response to phosphorus and potassium management under conservation tillage. Agronomy Journal. 2020; 112: 2302– 2316.
Christianson and PittelkowBanger, K., Nafziger, E.D., Wang, J. and Pittelkow, C.M. (2019), Modeling Inorganic Soil Nitrogen Status in Maize Agroecosystems. Soil Sci. Soc. Am. J., 83: 1564-1574. https://doi/10.2136/sssaj2019.05.0140
Gentry Andino, LF, Gentry, LE, Fraterrigo, JM. Closed depressions and soil phosphorus influence subsurface phosphorus losses in a tile‐drained field in Illinois. J. Environ. Qual. 2020; 1– 13.
MargenotHertzberger, AJ, Cusick, RD, Margenot, AJ. A review and meta‐analysis of the agricultural potential of struvite as a phosphorus fertilizer. Soil Sci. Soc. Am. J. 2020; 84: 653– 671.
WilliardSingh, G, Dhakal, M, Yang, L, K Williard, J Schoonover, and A. Sadeghpour. Decomposition and nitrogen release of cover crops in reduced and no‐tillage systems. Agronomy Journal. 2020; 1– 14.
WilliardSingh, G, Thilakarathne, AD, Williard, KW, et al. Tillage and legume non‐legume cover cropping effects on corn–soybean production. Agronomy Journal. 2020; 112: 2636– 2648.
WilliardSingh, G., Williard, K.W. and Schoonover, J.E. (2018), Cover Crops and Tillage Influence on Nitrogen Dynamics in Plant‐Soil‐Water Pools. Soil Science Society of America Journal, 82: 1572-1582. https://doi/10.2136/sssaj2018.03.0111
SandeghpourWeidhuner, A., Afshar, R.K., Luo, Y., Battaglia, M. and Sadeghpour, A. (2019), Particle Size Affects Nitrogen and Carbon Estimate of a Wheat Cover Crop. Agron. J., 111: 3398-3402. https://doi/10.2134/agronj2019.03.0164
SchoonoverSingh, G., Schoonover, J.E., Williard, K.W., Kaur, G. and Crim, J. (2018), Carbon and Nitrogen Pools in Deep Soil Horizons at Different Landscape Positions. Soil Science Society of America Journal, 82: 1512-1525. https://doi/10.2136/sssaj2018.03.0092
VillamilBehnke, GD, Kim, N, Villamil, MB. Agronomic assessment of cover cropping and tillage practices across environments. Agronomy Journal. 2020; 1– 16.
VillamilGraham, R.F., Greer, K.D., Villamil, M.B., Nafziger, E.D. and Pittelkow, C.M. (2018), Enhanced‐Efficiency Fertilizer Impacts on Yield‐Scaled Nitrous Oxide Emissions in Maize. Soil Science Society of America Journal, 82: 1469-1481. https://doi/10.2136/sssaj2018.05.0196
WilliardSingh, G., G. Kaur, K.W.J. Williard, K. Nelson, and J.E. Schoonover. 2019. Cover crops and topography differentially impacts weeds at a watershed scale. Weed Technology;
WilliardSingh, G., J.E. Schoonover, K.W.J. Williard, G. Kaur, and J. Crim. 2018. Carbon and Nitrogen Pools in Deep Soil Horizons at Different Landscape Positions. Soil Science Society of America Journal 82:1512-1525. DOI 10.2136/sssaj2018.03.0092
WilliardSingh, G., J.E. Schoonover, and K.W.J. Williard. 2018. Cover Crops for Managing Stream Water Quantity and Improving Stream Water Quality of Non-Tile Drained Paired Watersheds. Water. 10. 10.3390/w10040521.
WilliardSingh, G., Kaur, G., Williard, K., Schoonover, J., and Kang, J. 2016. Monitoring of Water and Solute Transport in the Vadose Zone. Vadose Zone Journal doi: 10.2136/vzj2016.07.0058.
WilliardSingh, G., Williard, K.W.J., and Schoonover, J.E. 2016. Spatial Relation of Apparent Soil Electrical Conductivity with Crop Yields and Soil Properties at Different Topographic Positions in a Small Agricultural Watershed. Agronomy, 6(4), 57.