Ruffatti, 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.
Nevins, C.J., C. Nakatsu, and S.D. Armstrong. 2018. Characterization of microbial community response to cover crop residue decomposition. Soil Biology and Biochemistry 127:39-49.
Xu, M., C. Lacey, and S.D. Armstrong. 2018. The feasibility of satellite remote sensing and spatial interpolation to estimate cover crop biomass and nitrogen uptake at the watershed scale. Journal of Soil and Water Conservation 73:6 682-692.
Mueller, S.M., H.R. Pasley, L.O. Pico, S.D. Armstrong, R.P. Sripada and T.J.Vyn. 2018. Re-evaluation of soil N sampling strategy effects on statistical power. Communications in Soil Science and Plant Analysis 49:16, 2053-2063.
Roth. 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.
Roth. R., M.D. Ruffatti, P.D. O'Rourke, and S.D. Armstrong. 2017. 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.
Armstrong, 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, DOI:10.19080/ARTOAJ.2017.12.555861
Grebliunas, B.G, W.L., Perry, and S.D. Armstrong. 2016. Changes in water extractable organic carbon with cover crop planting under continuous corn production. Air, Soil and Water Res. 95:45-54.
Watts, D.B., T.R. Way, H.A. Torbert, and S.D. Armstrong. 2015. Subsurface band application of poultry litter and its influence on phosphorus concentration and retention after runoff from permanent pastures. J. Environ. Qual. 44:1930–1937.
Lacey, G.C., and S.D. Armstrong. 2014. The efficacy of winter cover crops to stabilize soil inorganic nitrogen after fall-applied anhydrous ammonia. J. Environ. Qual. 44:442-448.
Lacey, G.C., and S.D. Armstrong. 2014. In field measurements of nitrogen mineralization following fall applications of N and the termination of winter cover crops. Air Soil and Water Res. 7:53-59.
Armstrong, S.D., D.R. Smith, P.R. Owens, B.C. Joern, and C.H. Huang. 2012. The development of alum rates to enhance the remediation of phosphorus in fluvial systems following manure spills. J. of Environ. Monitoring 14:292-298.
Armstrong, S.D., D.R. Smith, P.R. Owens, A.B. Leytem, B.C. Joern, C.H. Huang, and L. Adeola. 2011. Phosphorus and nitrogen loading depth in fluvial sediments following manure spill simulations. Can. J. Soil Sci. 91:427-436.
D.R. Smith, G. Hernandez-Ramirez, S.D. Armstrong, D.L. Bucholtz, and D.E. Stott. 2011. Fertilizer and tillage management impacts on non-carbon-dioxide greenhouse gas emissions. Soil Sci. Soc. Am. J. 75:1070-7082.
Adeola. 2009. Transport and fate of phosphorus during and after manure spill simulations. J. Environ. Qual. 39:345-352.
Haile, T., S.D. Armstrong, T.R. Way, D.E. Rowe, and K.R. Sistani. 2009. Cotton response to poultry litter applied by subsurface banding relative to surface broadcasting. Soil Sci. Soc. Am. J. 73:384-389.