| Agricultural-nitrogen contributions to hypoxia in the Gulf of Mexico MR Burkart, DE James Journal of Environmental Quality 28 (3), 850-859, 1999 | 429 | 1999 |
| Prairie strips improve biodiversity and the delivery of multiple ecosystem services from corn–soybean croplands LA Schulte, J Niemi, MJ Helmers, M Liebman, JG Arbuckle, DE James, ... Proceedings of the National Academy of Sciences 114 (42), 11247-11252, 2017 | 390 | 2017 |
| Conservation Reserve Program effects on soil quality indicators DL Karlen, MJ Rosek, JC Gardner, DL Allan, MJ Alms, DF Bezdicek, ... Journal of Soil and Water Conservation 54 (1), 439-444, 1999 | 234 | 1999 |
| Cluster analysis of spatiotemporal corn yield patterns in an Iowa field DB Jaynes, TC Kaspar, TS Colvin, DE James Agronomy Journal 95 (3), 574-586, 2003 | 233 | 2003 |
| Relationship between six years of corn yields and terrain attributes TC Kaspar, TS Colvin, DB Jaynes, DL Karlen, DE James, DW Meek, ... Precision agriculture 4, 87-101, 2003 | 197 | 2003 |
| Optimizing the placement of riparian practices in a watershed using terrain analysis. MD Tomer, DE James, TM Isenhart | 149 | 2003 |
| Combining precision conservation technologies into a flexible framework to facilitate agricultural watershed planning MD Tomer, SA Porter, DE James, KMB Boomer, JA Kostel, E McLellan Journal of Soil and Water Conservation 68 (5), 113A-120A, 2013 | 134 | 2013 |
| Methods to prioritize placement of riparian buffers for improved water quality MD Tomer, MG Dosskey, MR Burkart, DE James, MJ Helmers, ... Agroforestry Systems 75 (1), 17-25, 2009 | 113 | 2009 |
| Daily estimates of rainfall, water runoff, and soil erosion in Iowa R Cruse, D Flanagan, J Frankenberger, B Gelder, D Herzmann, D James, ... Journal of soil and water conservation 61 (4), 191-199, 2006 | 112 | 2006 |
| Agricultural conservation planning framework: 1. Developing multipractice watershed planning scenarios and assessing nutrient reduction potential MD Tomer, SA Porter, KMB Boomer, DE James, JA Kostel, MJ Helmers, ... Journal of environmental quality 44 (3), 754-767, 2015 | 103 | 2015 |
| Cover crops in the upper midwestern United States: Simulated effect on nitrate leaching with artificial drainage RW Malone, DB Jaynes, TC Kaspar, KR Thorp, E Kladivko, L Ma, ... J. Soil Water Conserv 69 (4), 292-305, 2014 | 97 | 2014 |
| Quantification of tillage and landscape effects on soil carbon in small Iowa watersheds TB Moorman, CA Cambardella, DE James, DL Karlen, LA Kramer Soil and Tillage Research 78 (2), 225-236, 2004 | 87 | 2004 |
| Agro-ecoregionalization of Iowa using multivariate geographical clustering CL Williams, WW Hargrove, M Liebman, DE James Agriculture, ecosystems & environment 123 (1-3), 161-174, 2008 | 86 | 2008 |
| Assessing groundwater vulnerability to agrichemical contamination in the Midwest US MR Burkart, DW Kolpin, DE James Water science and technology 39 (3), 103-112, 1999 | 83 | 1999 |
| Effect of variable annual precipitation and nutrient input on nitrogen and phosphorus transport from two Midwestern agricultural watersheds SJ Kalkhoff, LE Hubbard, MD Tomer, DE James Science of the Total Environment 559, 53-62, 2016 | 82 | 2016 |
| Soil properties following reforestation or afforestation of marginal cropland TJ Sauer, DE James, CA Cambardella, G Hernandez-Ramirez Plant and Soil 360, 375-390, 2012 | 81 | 2012 |
| The Daily Erosion Project–daily estimates of water runoff, soil detachment, and erosion B Gelder, T Sklenar, D James, D Herzmann, R Cruse, K Gesch, J Laflen Earth Surface Processes and Landforms 43 (5), 1105-1117, 2018 | 70 | 2018 |
| Assessment of the Iowa River's south fork watershed: part 2. Conservation practices MD Tomer, TB Moorman, DE James, G Hadish, CG Rossi journal of soil and water conservation 63 (6), 371-379, 2008 | 68 | 2008 |
| Estimating nitrate load reductions from placing constructed wetlands in a HUC-12 watershed using LiDAR data MD Tomer, WG Crumpton, RL Bingner, JA Kostel, DE James Ecological Engineering 56, 69-78, 2013 | 66 | 2013 |
| Opportunities for energy crop production based on subfield scale distribution of profitability IJ Bonner, KG Cafferty, DJ Muth Jr, MD Tomer, DE James, SA Porter, ... Energies 7 (10), 6509-6526, 2014 | 64 | 2014 |
Matt LiebmanIowa State UniversityVerified email at iastate.edu