| Integrating plant litter quality, soil organic matter stabilization, and the carbon saturation concept MJ Castellano, KE Mueller, DC Olk, JE Sawyer, J Six Global change biology 21 (9), 3200-3209, 2015 | 685 | 2015 |
| Concepts of variable rate technology with considerations for fertilizer application JE Sawyer Journal of Production Agriculture 7 (2), 195-201, 1994 | 365 | 1994 |
| Strengths and limitations of nitrogen rate recommendations for corn and opportunities for improvement TF Morris, TS Murrell, DB Beegle, JJ Camberato, RB Ferguson, J Grove, ... Agronomy journal 110 (1), 1-37, 2018 | 328 | 2018 |
| Concepts and rationale for regional nitrogen rate guidelines for corn J Sawyer, E Nafziger, G Randall, L Bundy, G Rehm, B Joern Iowa State University-University Extension, Ames, Iowa 28, 2006 | 328 | 2006 |
| Nitrogen application to soybean at early reproductive development DW Barker, JE Sawyer Agronomy journal 97 (2), 615-619, 2005 | 175 | 2005 |
| Maximum soil organic carbon storage in Midwest US cropping systems when crops are optimally nitrogen-fertilized HJ Poffenbarger, DW Barker, MJ Helmers, FE Miguez, DC Olk, JE Sawyer, ... PLoS One 12 (3), e0172293, 2017 | 174 | 2017 |
| Modeling long-term corn yield response to nitrogen rate and crop rotation LA Puntel, JE Sawyer, DW Barker, R Dietzel, H Poffenbarger, ... Frontiers in plant science 7, 1630, 2016 | 174 | 2016 |
| Cover crop effects on nitrous oxide emissions: role of mineralizable carbon DC Mitchell, MJ Castellano, JE Sawyer, J Pantoja Soil Science Society of America Journal 77 (5), 1765-1773, 2013 | 168 | 2013 |
| Drought impact on crop production and the soil environment: 2012 experiences from Iowa MM Al-Kaisi, RW Elmore, JG Guzman, HM Hanna, CE Hart, MJ Helmers, ... Journal of Soil and Water Conservation 68 (1), 19A-24A, 2013 | 168 | 2013 |
| A general guide for crop nutrient and limestone recommendations in Iowa JE Sawyer, AP Malarino, SK Barnhart Iowa State University, University Extension, 2011 | 168 | 2011 |
| Using relative chlorophyll meter values to determine nitrogen application rates for corn JA Hawkins, JE Sawyer, DW Barker, JP Lundvall Agronomy Journal 99 (4), 1034-1040, 2007 | 164 | 2007 |
| A long‐term nitrogen fertilizer gradient has little effect on soil organic matter in a high‐intensity maize production system KH Brown, EM Bach, RA Drijber, KS Hofmockel, ES Jeske, JE Sawyer, ... Global change biology 20 (4), 1339-1350, 2014 | 155 | 2014 |
| Nitrogen fertilizer suppresses mineralization of soil organic matter in maize agroecosystems NK Mahal, WR Osterholz, FE Miguez, HJ Poffenbarger, JE Sawyer, ... Frontiers in Ecology and Evolution 7, 59, 2019 | 150 | 2019 |
| Effect of nitrogen fertilizer application on growing season soil carbon dioxide emission in a corn–soybean rotation MM Al‐Kaisi, ML Kruse, JE Sawyer Journal of environmental quality 37 (2), 325-332, 2008 | 147 | 2008 |
| Corn nitrogen fertilization requirement and corn–soybean productivity with a rye cover crop JL Pantoja, KP Woli, JE Sawyer, DW Barker Soil Science Society of America Journal 79 (5), 1482-1495, 2015 | 143 | 2015 |
| Understanding the DayCent model: Calibration, sensitivity, and identifiability through inverse modeling M Necpálová, RP Anex, MN Fienen, SJ Del Grosso, MJ Castellano, ... Environmental Modelling & Software 66, 110-130, 2015 | 133 | 2015 |
| Using active canopy sensors to quantify corn nitrogen stress and nitrogen application rate DW Barker, JE Sawyer Agronomy Journal 102 (3), 964-971, 2010 | 123 | 2010 |
| A general guide for crop nutrient and limestone recommendations in Iowa A Mallarino, J Sawyer, S Barnhart | 121 | 2013 |
| Use of anaerobically digested swine manure as a nitrogen source in corn production ER Loria, JE Sawyer, DW Barker, JP Lundvall, JC Lorimor Agronomy Journal 99 (4), 1119-1129, 2007 | 121 | 2007 |
| Statistical and machine learning methods evaluated for incorporating soil and weather into corn nitrogen recommendations CJ Ransom, NR Kitchen, JJ Camberato, PR Carter, RB Ferguson, ... Computers and electronics in agriculture 164, 104872, 2019 | 118 | 2019 |
Antonio MallarinoIowa State UniversityEmail được xác minh tại iastate.edu