| Year |
Citation |
Score |
| 2024 |
Huddell AM, Thapa R, Marcillo GS, Abendroth LJ, Ackroyd VJ, Armstrong SD, Asmita G, Bagavathiannan MV, Balkcom KS, Basche A, Beam S, Bradley K, Canisares LP, Darby H, Davis AS, ... ... Helmers MJ, et al. U.S. cereal rye winter cover crop growth database. Scientific Data. 11: 200. PMID 38351049 DOI: 10.1038/s41597-024-02996-9 |
0.331 |
|
| 2023 |
Mitchell ME, Newcomer-Johnson T, Christensen J, Crumpton W, Dyson B, Canfield TJ, Helmers M, Forshay KJ. A review of ecosystem services from edge-of-field practices in tile-drained agricultural systems in the United States Corn Belt Region. Journal of Environmental Management. 348: 119220. PMID 37866183 DOI: 10.1016/j.jenvman.2023.119220 |
0.329 |
|
| 2023 |
Cao P, Lu C, Crumpton W, Helmers M, Green D, Stenback G. Improving model capability in simulating spatiotemporal variations and flow contributions of nitrate export in tile-drained catchments. Water Research. 244: 120489. PMID 37651862 DOI: 10.1016/j.watres.2023.120489 |
0.391 |
|
| 2022 |
Mitchell ME, Newcomer-Johnson T, Christensen J, Crumpton W, Richmond S, Dyson B, Canfield TJ, Helmers M, Lemke D, Lechtenberg M, Green D, Forshay KJ. Potential of water quality wetlands to mitigate habitat losses from agricultural drainage modernization. The Science of the Total Environment. 156358. PMID 35654186 DOI: 10.1016/j.scitotenv.2022.156358 |
0.319 |
|
| 2021 |
Mourtzinis S, Andrade JF, Grassini P, Edreira JIR, Kandel H, Naeve S, Nelson KA, Helmers M, Conley SP. Assessing benefits of artificial drainage on soybean yield in the North Central US region Agricultural Water Management. 243: 106425. DOI: 10.1016/J.Agwat.2020.106425 |
0.342 |
|
| 2020 |
Law JY, Brendel C, Long LA, Helmers M, Kaleita A, Soupir M. Impact of stacked conservation practices on phosphorus and sediment export at the catchment scale. Journal of Environmental Quality. 49: 1552-1563. PMID 33459412 DOI: 10.1002/Jeq2.20140 |
0.373 |
|
| 2020 |
Waring ER, Lagzdins A, Pederson C, Helmers MJ. Influence of no-till and a winter rye cover crop on nitrate losses from tile-drained row-crop agriculture in Iowa. Journal of Environmental Quality. 49: 292-303. PMID 33016415 DOI: 10.1002/Jeq2.20056 |
0.408 |
|
| 2020 |
Dougherty BW, Pederson CH, Mallarino AP, Andersen DS, Soupir ML, Kanwar RS, Helmers MJ. Midwestern cropping system effects on drainage water quality and crop yields. Journal of Environmental Quality. 49: 38-49. PMID 33016359 DOI: 10.1002/Jeq2.20007 |
0.478 |
|
| 2020 |
Maxwell BM, Birgand F, Schipper LA, Barkle G, Rivas AA, Helmers MJ, Christianson LE. High-frequency, in situ sampling of field woodchip bioreactors reveals sources of sampling error and hydraulic inefficiencies. Journal of Environmental Management. 272: 110996. PMID 32854899 DOI: 10.1016/J.Jenvman.2020.110996 |
0.672 |
|
| 2020 |
Smith W, Grant B, Qi Z, He W, VanderZaag A, Drury CF, Helmers M. Development of the DNDC model to improve soil hydrology and incorporate mechanistic tile drainage: A comparative analysis with RZWQM2 Environmental Modelling & Software. 123: 104577. DOI: 10.1016/J.Envsoft.2019.104577 |
0.708 |
|
| 2020 |
Archontoulis SV, Castellano MJ, Licht MA, Nichols V, Baum M, Huber I, Martinez-Feria R, Puntel L, Ordonez RA, Iqbal J, Wright EE, Dietzel RN, Helmers M, VanLoocke A, Liebman M, et al. Predicting crop yields and soil‐plant nitrogen dynamics in the US Corn Belt Crop Science. 60: 721-738. DOI: 10.1002/Csc2.20039 |
0.308 |
|
| 2019 |
Malone RW, Herbstritt S, Ma L, Richard TL, Cibin R, Gassman PW, Zhang HH, Karlen DL, Hatfield JL, Obrycki JF, Helmers MJ, Jaynes DB, Kaspar TC, Parkin TB, Fang QX. Corn stover harvest N and energy budgets in central Iowa. The Science of the Total Environment. 663: 776-792. PMID 30738259 DOI: 10.1016/J.Scitotenv.2019.01.328 |
0.414 |
|
| 2019 |
Brendel CE, Soupir ML, Long LAM, Helmers MJ, Ikenberry CD, Kaleita AL. Catchment-scale Phosphorus Export through Surface and Drainage Pathways. Journal of Environmental Quality. 48: 117-126. PMID 30640359 DOI: 10.2134/Jeq2018.07.0265 |
0.365 |
|
| 2019 |
Maxwell BM, Birgand F, Schipper LA, Christianson LE, Tian S, Helmers MJ, Williams DJ, Chescheir GM, Youssef MA. Drying-Rewetting Cycles Affect Nitrate Removal Rates in Woodchip Bioreactors. Journal of Environmental Quality. 48: 93-101. PMID 30640347 DOI: 10.2134/Jeq2018.05.0199 |
0.684 |
|
| 2019 |
Sharpley A, Helmers MJ, Kleinman P, King K, Leytem A, Nelson N. Managing crop nutrients to achieve water quality goals Journal of Soil and Water Conservation. 74. DOI: 10.2489/Jswc.74.5.91A |
0.433 |
|
| 2019 |
Maxwell BM, Birgand F, Schipper LA, Christianson LE, Tian S, Helmers MJ, Williams DJ, Chescheir GM, Youssef MA. Increased Duration of Drying–Rewetting Cycles Increases Nitrate Removal in Woodchip Bioreactors Agricultural & Environmental Letters. 4: 1-4. DOI: 10.2134/Ael2019.07.0028 |
0.63 |
|
| 2019 |
Reinhart BD, Frankenberger JR, Hay CH, Helmers MJ. Simulated water quality and irrigation benefits from drainage water recycling at two tile-drained sites in the U.S. Midwest Agricultural Water Management. 223: 105699. DOI: 10.1016/J.Agwat.2019.105699 |
0.499 |
|
| 2019 |
Nichols VA, Ordóñez RA, Wright EE, Castellano MJ, Liebman M, Hatfield JL, Helmers M, Archontoulis SV. Maize root distributions strongly associated with water tables in Iowa, USA Plant and Soil. 444: 225-238. DOI: 10.1007/S11104-019-04269-6 |
0.434 |
|
| 2018 |
Christianson R, Christianson L, Wong C, Helmers M, McIsaac G, Mulla D, McDonald M. Beyond the nutrient strategies: Common ground to accelerate agricultural water quality improvement in the upper Midwest. Journal of Environmental Management. 206: 1072-1080. PMID 30029341 DOI: 10.1016/J.Jenvman.2017.11.051 |
0.69 |
|
| 2018 |
Licht M, Juchems L, Comito J, Helmers M, Carlson S. Demonstrating Cover Crop Mixtures on Iowa Farmland:Management, Soil Health, and Water Quality Benefits Farm Progress Reports. 2015: 82. DOI: 10.31274/Farmprogressreports-180814-1972 |
0.378 |
|
| 2018 |
Strock JS, Hay C, Helmers MJ, Nelson KA, Sands GR, Skaggs RW, Douglas-Mankin KR. Advances in Drainage: Selected Works from the Tenth International Drainage Symposium Transactions of the Asabe. 61: 161-168. DOI: 10.13031/Trans.12668 |
0.418 |
|
| 2018 |
Cibin R, Chaubey I, Helmers MJ, Sudheer KP, White MJ, Arnold JG. An Improved Representation of Vegetative Filter Strips in SWAT Transactions of the Asabe. 61: 1017-1024. DOI: 10.13031/Trans.12661 |
0.459 |
|
| 2018 |
Webber DF, Bansal M, Mickelson SK, Helmers MJ, Arora K, Gelder BK, Shrivastav M, Judge CJ. Assessing Surface Flowpath Interception by Vegetative Buffers Using ArcGIS Hydrologic Modeling and Geospatial Analysis for Rock Creek Watershed in Central Iowa Transactions of the Asabe. 61: 273-283. DOI: 10.13031/Trans.12350 |
0.374 |
|
| 2018 |
Craft KJ, Helmers MJ, Malone RW, Pederson CH, Schott LR. Effects of Subsurface Drainage Systems on Water and Nitrogen Footprints Simulated with RZWQM2 Transactions of the Asabe. 61: 245-261. DOI: 10.13031/Trans.12300 |
0.396 |
|
| 2018 |
Ordonez RA, Castellano MJ, Hatfield JL, Helmers MJ, Licht MA, Liebman M, Dietzel R, Martinez-Feria R, Iqbal J, Puntel LA, Cordova SC, Togliatti K, Wright EE, Archontoulis SV. Maize and soybean root front velocity and maximum depth in Iowa, USA Field Crops Research. 215: 122-131. DOI: 10.1016/J.Fcr.2017.09.003 |
0.368 |
|
| 2018 |
Daigh AL, Dick WA, Helmers MJ, Lal R, Lauer JG, Nafziger E, Pederson CH, Strock J, Villamil M, Mukherjee A, Cruse R. Yields and yield stability of no-till and chisel-plow fields in the Midwestern US Corn Belt Field Crops Research. 218: 243-253. DOI: 10.1016/J.Fcr.2017.04.002 |
0.358 |
|
| 2018 |
Luo C, Wang Z, Sauer TJ, Helmers MJ, Horton R. Portable canopy chamber measurements of evapotranspiration in corn, soybean and reconstructed prairie Agricultural Water Management. 198: 1-9. DOI: 10.1016/J.Agwat.2017.11.024 |
0.363 |
|
| 2018 |
Martinez-Feria RA, Castellano MJ, Dietzel RN, Helmers MJ, Liebman M, Huber I, Archontoulis SV. Linking crop- and soil-based approaches to evaluate system nitrogen-use efficiency and tradeoffs Agriculture, Ecosystems & Environment. 256: 131-143. DOI: 10.1016/J.Agee.2018.01.002 |
0.439 |
|
| 2017 |
Nelson NO, Baffaut C, Lory JA, Anomaa Senaviratne GMMM, Bhandari AB, Udawatta RP, Sweeney DW, Helmers MJ, Van Liew MW, Mallarino AP, Wortmann CS. Multisite Evaluation of APEX for Water Quality: II. Regional Parameterization. Journal of Environmental Quality. 46: 1349-1356. PMID 29293851 DOI: 10.2134/Jeq2016.07.0254 |
0.406 |
|
| 2017 |
Baffaut C, Nelson NO, Lory JA, Senaviratne GMMMA, Bhandari AB, Udawatta RP, Sweeney DW, Helmers MJ, Van Liew MW, Mallarino AP, Wortmann CS. Multisite Evaluation of APEX for Water Quality: I. Best Professional Judgment Parameterization. Journal of Environmental Quality. 46: 1323-1331. PMID 29293832 DOI: 10.2134/Jeq2016.06.0226 |
0.504 |
|
| 2017 |
Schulte LA, Niemi J, Helmers MJ, Liebman M, Arbuckle JG, James DE, Kolka RK, O'Neal ME, Tomer MD, Tyndall JC, Asbjornsen H, Drobney P, Neal J, Van Ryswyk G, Witte C. Prairie strips improve biodiversity and the delivery of multiple ecosystem services from corn-soybean croplands. Proceedings of the National Academy of Sciences of the United States of America. PMID 28973922 DOI: 10.1073/Pnas.1620229114 |
0.391 |
|
| 2017 |
Poffenbarger HJ, Barker DW, Helmers MJ, Miguez FE, Olk DC, Sawyer JE, Six J, Castellano MJ. Maximum soil organic carbon storage in Midwest U.S. cropping systems when crops are optimally nitrogen-fertilized. Plos One. 12: e0172293. PMID 28249014 DOI: 10.1371/Journal.Pone.0172293 |
0.431 |
|
| 2017 |
Helmers M, Pederson CH, Liebman M, Thompson M. Nitrate-N Loss with Drainage from Corn-Based and Prairie Bioenergy Cropping Systems Farm Progress Reports. 2016: 177. DOI: 10.31274/Farmprogressreports-180814-1740 |
0.363 |
|
| 2017 |
Dougherty B, Pederson C, Helmers M, Soupir M, Kanwar R, Mallarino A. Impact of Liquid Swine Manure Application and Cover Crops on Dissolved Phosphorusin Subsurface Drainage Water Farm Progress Reports. 2016: 71. DOI: 10.31274/Farmprogressreports-180814-1724 |
0.392 |
|
| 2017 |
Schott L, Lagzdins A, Daigh A, Pederson C, Brenneman G, Helmers M. Drainage water management effect on corn planting date in southeast Iowa Journal of Soil and Water Conservation. 72: 564-574. DOI: 10.2489/Jswc.72.6.564 |
0.481 |
|
| 2017 |
Han G, Kandel Y, Leandro L, Helmers M, Schott L, Mueller D. Influence of drainage on soybean seedling health Journal of Soil and Water Conservation. 72: 266-271. DOI: 10.2489/Jswc.72.3.266 |
0.388 |
|
| 2017 |
Schott L, Lagzdins A, Daigh A, Craft K, Pederson C, Brenneman G, Helmers M. Drainage water management effects over five years on water tables, drainage, and yields in southeast Iowa Journal of Soil and Water Conservation. 72: 251-259. DOI: 10.2489/Jswc.72.3.251 |
0.515 |
|
| 2017 |
Ikenberry CD, Soupir ML, Helmers MJ, Crumpton WG, Arnold JG, Gassman PW. Simulation of Daily Flow Pathways, Tile-Drain Nitrate Concentrations, and Soil-Nitrogen Dynamics Using SWAT Jawra Journal of the American Water Resources Association. 53: 1251-1266. DOI: 10.1111/1752-1688.12569 |
0.397 |
|
| 2017 |
Hladik ML, Bradbury S, Schulte LA, Helmers M, Witte C, Kolpin DW, Garrett JD, Harris M. Neonicotinoid insecticide removal by prairie strips in row-cropped watersheds with historical seed coating use Agriculture, Ecosystems & Environment. 241: 160-167. DOI: 10.1016/J.Agee.2017.03.015 |
0.426 |
|
| 2017 |
Anwar U, Schulte LA, Helmers M, Kolka RK. The Effect of Five Biomass Cropping Systems on Soil-Saturated Hydraulic Conductivity Across a Topographic Gradient Bioenergy Research. 10: 824-831. DOI: 10.1007/S12155-017-9843-6 |
0.395 |
|
| 2017 |
Du X, Feng H, Helmers MJ, Qi Z. Comparing Simulated Nitrate‐Nitrogen Concentration In Subsurface Drainage Using Drainmod‐N II and RZWQM2 Irrigation and Drainage. 66: 238-251. DOI: 10.1002/Ird.2093 |
0.664 |
|
| 2016 |
Dietzel R, Liebman M, Ewing R, Helmers M, Horton R, Jarchow M, Archontoulis S. How efficiently do corn- and soybean-based cropping systems use water? A systems modeling analysis. Global Change Biology. 22: 666-81. PMID 26391215 DOI: 10.1111/Gcb.13101 |
0.481 |
|
| 2016 |
Martinez-Feria RA, Dietzel R, Liebman M, Helmers MJ, Archontoulis SV. Rye cover crop effects on maize: A system-level analysis Field Crops Research. 196: 145-159. DOI: 10.1016/J.Fcr.2016.06.016 |
0.503 |
|
| 2016 |
Schulte LA, MacDonald AL, Niemi JB, Helmers MJ. Prairie strips as a mechanism to promote land sharing by birds in industrial agricultural landscapes Agriculture, Ecosystems and Environment. 220: 55-63. DOI: 10.1016/J.Agee.2016.01.007 |
0.328 |
|
| 2015 |
Daigh AL, Zhou X, Helmers MJ, Pederson CH, Horton R, Jarchow M, Liebman M. Subsurface Drainage Nitrate and Total Reactive Phosphorus Losses in Bioenergy-Based Prairies and Corn Systems. Journal of Environmental Quality. 44: 1638-46. PMID 26436280 DOI: 10.2134/Jeq2015.02.0080 |
0.439 |
|
| 2015 |
Tomer MD, Porter SA, Boomer KM, James DE, Kostel JA, Helmers MJ, Isenhart TM, McLellan E. Agricultural conservation planning framework: 1. Developing multipractice watershed planning scenarios and assessing nutrient reduction potential. Journal of Environmental Quality. 44: 754-67. PMID 26024256 DOI: 10.2134/Jeq2014.09.0386 |
0.458 |
|
| 2015 |
Mitchell DC, Zhou X, Parkin TB, Helmers MJ, Castellano MJ. Comparing nitrate sink strength in perennial filter strips at toeslopes of cropland watersheds. Journal of Environmental Quality. 44: 191-9. PMID 25602334 DOI: 10.2134/Jeq2014.05.0201 |
0.421 |
|
| 2015 |
Schott L, Helmers M, Pederson C, Brenneman G, Rees M. Impact of Drainage Water Management on Crop Yield, Drainage Volume, and Nitrate Loss Farm Progress Reports. 2016: 144. DOI: 10.31274/Farmprogressreports-180814-1708 |
0.41 |
|
| 2015 |
Helmers M, Sawyer J, Pederson C. Impact of 4R Management on Crop Production and Nitrate-Nitrogen Loss in Tile Drainage Farm Progress Reports. 2016: 119. DOI: 10.31274/Farmprogressreports-180814-1685 |
0.455 |
|
| 2015 |
Pederson CH, Helmers M, Soupir ML, Kanwar R, Mallarino A. Impact of Liquid Swine Manure Application and Cover Crops on Nitrate in Subsurface Drainage Water Farm Progress Reports. 2015: 91. DOI: 10.31274/Farmprogressreports-180814-1437 |
0.483 |
|
| 2015 |
Dosskey MG, Neelakantan S, Mueller TG, Kellerman T, Helmers MJ, Rienzi E. AgBufferBuilder: A geographic information system (GIS) tool for precision design and performance assessment of filter strips Journal of Soil and Water Conservation. 70: 209-217. DOI: 10.2489/Jswc.70.4.209 |
0.331 |
|
| 2015 |
Iqbal J, Parkin TB, Helmers MJ, Zhou X, Castellano MJ. Denitrification and nitrous oxide emissions in annual croplands, perennial grass buffers, and restored perennial grasslands Soil Science Society of America Journal. 79: 239-250. DOI: 10.2136/Sssaj2014.05.0221 |
0.411 |
|
| 2015 |
Goeken RJ, Zhou X, Helmers MJ. Comparison of Timing and Volume of Subsurface Drainage under Perennial Forage and Row Crops in a Tile-Drained Field in Iowa Transactions of the Asabe. 58: 1193-1200. DOI: 10.13031/Trans.58.10054 |
0.448 |
|
| 2015 |
Andersen DS, Helmers MJ, Burns RT. Phosphorus sorption capacity of six Iowa soils before and after five years of use as vegetative treatment areas Applied Engineering in Agriculture. 31: 611-620. DOI: 10.13031/Aea.31.11128 |
0.427 |
|
| 2015 |
Chen B, Krajewski WF, Zhou X, Helmers MJ. Organized variability of surface runoff responses across neighboring hillslopes in Iowa Journal of Hydrology. 523: 1-13. DOI: 10.1016/J.Jhydrol.2015.01.038 |
0.324 |
|
| 2015 |
Qi Z, Singh R, Helmers MJ, Zhou X. Evaluating the performance of DRAINMOD using soil hydraulic parameters derived by various methods Agricultural Water Management. 155: 48-52. DOI: 10.1016/J.Agwat.2015.03.019 |
0.664 |
|
| 2015 |
Wang Z, Qi Z, Xue L, Bukovsky M, Helmers MJ. Modeling the impacts of climate change on nitrogen losses and crop yield in a subsurface drained field Climatic Change. 129: 323-335. DOI: 10.1007/S10584-015-1342-1 |
0.681 |
|
| 2014 |
Cox R, O'Neal M, Hessel R, Schulte LA, Helmers M. The impact of prairie strips on aphidophagous predator abundance and soybean aphid predation in agricultural catchments. Environmental Entomology. 43: 1185-97. PMID 25199149 DOI: 10.1603/En13129 |
0.378 |
|
| 2014 |
Zhao X, Chen X, Huang J, Wu P, Helmers MJ. Effects of vegetation cover of natural grassland on runoff and sediment yield in loess hilly region of China. Journal of the Science of Food and Agriculture. 94: 497-503. PMID 23788120 DOI: 10.1002/Jsfa.6275 |
0.39 |
|
| 2014 |
Daigh AL, Helmers MJ, Kladivko E, Zhou X, Goeken R, Cavdini J, Barker D, Sawyer J. Soil water during the drought of 2012 as affected by rye cover crops in fields in Iowa and Indiana Journal of Soil and Water Conservation. 69: 564-573. DOI: 10.2489/Jswc.69.6.564 |
0.452 |
|
| 2014 |
Kladivko EJ, Helmers MJ, Abendroth LJ, Herzmann D, Lal R, Castellano MJ, Mueller DS, Sawyer JE, Anex RP, Arritt RW, Basso B, Bonta JV, Bowling LC, Cruse RM, Fausey NR, et al. Standardized research protocols enable transdisciplinary research of climate variation impacts in corn production systems Journal of Soil and Water Conservation. 69: 532-542. DOI: 10.2489/Jswc.69.6.532 |
0.37 |
|
| 2014 |
Zhou X, Helmers MJ, Asbjornsen H, Kolka R, Tomer MD, Cruse RM. Nutrient removal by prairie filter strips in agricultural landscapes Journal of Soil and Water Conservation. 69: 54-64. DOI: 10.2489/Jswc.69.1.54 |
0.496 |
|
| 2014 |
Daigh AL, Zhou X, Helmers MJ, Pederson CH, Ewing R, Horton R. Subsurface drainage flow and soil water dynamics of reconstructed prairies and corn rotations for biofuel production. Vadose Zone Journal. 13: 1-11. DOI: 10.2136/Vzj2013.10.0177 |
0.492 |
|
| 2014 |
Andersen DS, Burns RT, Helmers MJ, Moody LB. Vegetative Treatment System Impacts on Groundwater Quality Transactions of the Asabe. 57: 417-430. DOI: 10.13031/Trans.57.10231 |
0.425 |
|
| 2014 |
Asbjornsen H, Hernandez-Santana V, Liebman M, Bayala J, Chen J, Helmers M, Ong CK, Schulte LA. Targeting perennial vegetation in agricultural landscapes for enhancing ecosystem services Renewable Agriculture and Food Systems. 29: 101-125. DOI: 10.1017/S1742170512000385 |
0.335 |
|
| 2014 |
Gutierrez-Lopez J, Asbjornsen H, Helmers M, Isenhart T. Regulation of soil moisture dynamics in agricultural fields using strips of native prairie vegetation Geoderma. 226: 238-249. DOI: 10.1016/J.Geoderma.2014.02.013 |
0.481 |
|
| 2014 |
Pérez-Suárez M, Castellano MJ, Kolka R, Asbjornsen H, Helmers M. Nitrogen and carbon dynamics in prairie vegetation strips across topographical gradients in mixed Central Iowa agroecosystems Agriculture, Ecosystems and Environment. 188: 1-11. DOI: 10.1016/J.Agee.2014.01.023 |
0.417 |
|
| 2014 |
Smith TE, Kolka RK, Zhou X, Helmers MJ, Cruse RM, Tomer MD. Effects of native perennial vegetation buffer strips on dissolved organic carbon in surface runoff from an agricultural landscape Biogeochemistry. 120: 121-132. DOI: 10.1007/S10533-014-9985-Y |
0.409 |
|
| 2013 |
Tyndall JC, Schulte LA, Liebman M, Helmers M. Field-level financial assessment of contour prairie strips for enhancement of environmental quality. Environmental Management. 52: 736-47. PMID 23793578 DOI: 10.1007/S00267-013-0106-9 |
0.41 |
|
| 2013 |
Andersen DS, Burns RT, Moody LB, Helmers MJ, Bond B, Khanijo I, Pederson C. Impact of system management on vegetative treatment system effluent concentrations. Journal of Environmental Management. 125: 55-67. PMID 23644590 DOI: 10.1016/J.Jenvman.2013.03.046 |
0.397 |
|
| 2013 |
Al-Kaisi MM, Elmore RW, Guzman JG, Hanna HM, Hart CE, Helmers MJ, Hodgson EW, Lenssen AW, Mallarino AP, Robertson AE, Sawyer JE. Drought impact on crop production and the soil environment: 2012 experiences from Iowa Journal of Soil and Water Conservation. 68: 19A-24A. DOI: 10.2489/Jswc.68.1.19A |
0.424 |
|
| 2013 |
Zhou X, Helmers M, Qi Z. Modeling of Subsurface Tile Drainage using MIKE SHE Applied Engineering in Agriculture. 29: 865-873. DOI: 10.13031/Aea.29.9568 |
0.668 |
|
| 2013 |
Christianson L, Knoot T, Larsen D, Tyndall J, Helmers M. Adoption potential of nitrate mitigation practices: an ecosystem services approach International Journal of Agricultural Sustainability. 12: 407-424. DOI: 10.1080/14735903.2013.835604 |
0.692 |
|
| 2013 |
Zhao X, Wu P, Chen X, Helmers MJ, Zhou X. Runoff and sediment yield under simulated rainfall on hillslopes in the Loess Plateau of China Soil Research. 51: 50-58. DOI: 10.1071/Sr12239 |
0.429 |
|
| 2013 |
Christianson L, Christianson R, Helmers M, Pederson C, Bhandari A. Modeling and calibration of drainage denitrification bioreactor design criteria Journal of Irrigation and Drainage Engineering. 139: 699-709. DOI: 10.1061/(Asce)Ir.1943-4774.0000622 |
0.676 |
|
| 2013 |
Liebman M, Helmers MJ, Schulte LA, Chase CA. Using biodiversity to link agricultural productivity with environmental quality: Results from three field experiments in Iowa Renewable Agriculture and Food Systems. 28: 115-128. DOI: 10.1017/S1742170512000300 |
0.459 |
|
| 2013 |
Christianson LE, Tyndall J, Helmers M. Financial comparison of seven nitrate reduction strategies for Midwestern agricultural drainage Water Resources and Economics. 2: 30-56. DOI: 10.1016/J.Wre.2013.09.001 |
0.687 |
|
| 2013 |
Hernandez-Santana V, Zhou X, Helmers MJ, Asbjornsen H, Kolka R, Tomer M. Native prairie filter strips reduce runoff from hillslopes under annual row-crop systems in Iowa, USA Journal of Hydrology. 477: 94-103. DOI: 10.1016/J.Jhydrol.2012.11.013 |
0.456 |
|
| 2013 |
Christianson L, Helmers M, Bhandari A, Moorman T. Internal hydraulics of an agricultural drainage denitrification bioreactor Ecological Engineering. 52: 298-307. DOI: 10.1016/J.Ecoleng.2012.11.001 |
0.694 |
|
| 2012 |
Helmers MJ, Zhou X, Asbjornsen H, Kolka R, Tomer MD, Cruse RM. Sediment removal by prairie filter strips in row-cropped ephemeral watersheds. Journal of Environmental Quality. 41: 1531-9. PMID 23099945 DOI: 10.2134/Jeq2011.0473 |
0.434 |
|
| 2012 |
Qi Z, Ma L, Helmers MJ, Ahuja LR, Malone RW. Simulating nitrate-nitrogen concentration from a subsurface drainage system in response to nitrogen application rates using RZWQM2. Journal of Environmental Quality. 41: 289-95. PMID 22218197 DOI: 10.2134/Jeq2011.0195 |
0.672 |
|
| 2012 |
Christianson LE, Helmers MJ, Pederson CH. Hydraulic Performance of the Denitrification Bioreactor Farm Progress Reports. DOI: 10.31274/Farmprogressreports-180814-588 |
0.707 |
|
| 2012 |
Helmers M, Christianson R, Brenneman G, Lockett D, Pederson C. Water table, drainage, and yield response to drainage water management in southeast Iowa Journal of Soil and Water Conservation. 67: 495-501. DOI: 10.2489/Jswc.67.6.495 |
0.494 |
|
| 2012 |
Niu W, Guo Q, Zhou X, Helmers MJ. Effect of Aeration and Soil Water Redistribution on the Air Permeability under Subsurface Drip Irrigation Soil Science Society of America Journal. 76: 815-820. DOI: 10.2136/Sssaj2011.0329 |
0.43 |
|
| 2012 |
Christianson LE, Bhandari A, Helmers MJ, Kult KJ, Sutphin T, Wolf R. Performance Evaluation of Four Field-Scale Agricultural Drainage Denitrification Bioreactors in Iowa Transactions of the Asabe. 55: 2163-2174. DOI: 10.13031/2013.42508 |
0.712 |
|
| 2012 |
Christianson LE, Bhandari A, Helmers MJ. A Practice-oriented Review of Woodchip Bioreactors for Subsurface Agricultural Drainage Applied Engineering in Agriculture. 28: 861-874. DOI: 10.13031/2013.42479 |
0.698 |
|
| 2012 |
Christianson LE, Hoover NL, Bhandari A, Helmers MJ. Technical Note: The Potential of Municipal Yard Waste to be Denitrification Bioreactor Fill Applied Engineering in Agriculture. 28: 853-859. DOI: 10.13031/2013.42478 |
0.663 |
|
| 2012 |
Qi Z, Feng S, Helmers MJ. Modeling Cadmium Transport in Neutral and Alkaline Soil Columns at Various Depths Pedosphere. 22: 273-282. DOI: 10.1016/S1002-0160(12)60014-9 |
0.36 |
|
| 2012 |
Schilling KE, Jindal P, Basu NB, Helmers MJ. Impact of artificial subsurface drainage on groundwater travel times and baseflow discharge in an agricultural watershed, Iowa (USA) Hydrological Processes. 26: 3092-3100. DOI: 10.1002/Hyp.8337 |
0.41 |
|
| 2011 |
Qi Z, Helmers MJ, Christianson RD, Pederson CH. Nitrate-nitrogen losses through subsurface drainage under various agricultural land covers. Journal of Environmental Quality. 40: 1578-85. PMID 21869520 DOI: 10.2134/Jeq2011.0151 |
0.687 |
|
| 2011 |
Christianson LE, Helmers MJ, Pederson CH. Denitrification Bioreactor in Northeast Iowa Farm Progress Reports. 2016: 64. DOI: 10.31274/Farmprogressreports-180814-1634 |
0.698 |
|
| 2011 |
Dosskey MG, Qiu Z, Helmers MJ, Eisenhauer DE. Improved indexes for targeting placement of buffers of Hortonian runoff Journal of Soil and Water Conservation. 66: 362-372. DOI: 10.2489/Jswc.66.6.362 |
0.473 |
|
| 2011 |
Dosskey MG, Helmers MJ, Eisenhauer DE. A design aid for sizing filter strips using buffer area ratio Journal of Soil and Water Conservation. 66: 29-39. DOI: 10.2489/Jswc.66.1.29 |
0.384 |
|
| 2011 |
Qi Z, Helmers MJ, Malone RW, Thorp KR. Simulating long-term impacts of winter rye cover crop on hydrologic cycling and nitrogen dynamics for a corn-soybean crop system Transactions of the Asabe. 54: 1575-1588. DOI: 10.13031/2013.39836 |
0.696 |
|
| 2011 |
Andersen DS, Burns RT, Moody LB, Helmers MJ. Using Total Solids Concentration to Estimate Nutrient Content of Feedlot Runoff Effluent from Solid Settling Basins, Vegetative Infiltration Basins, and Vegetative Treatment Areas Applied Engineering in Agriculture. 27: 813-820. DOI: 10.13031/2013.39569 |
0.423 |
|
| 2011 |
Lawlor PA, Helmers MJ, Baker JL, Melvin SW, Lemke DW. Comparison of Liquid Swine Manure and Aqua-Ammonia Nitrogen Application Timing on Subsurface Drainage Water Quality in Iowa Transactions of the Asabe. 54: 973-981. DOI: 10.13031/2013.37121 |
0.464 |
|
| 2011 |
Christianson LE, Bhandari A, Helmers MJ. Pilot-Scale Evaluation of Denitrification Drainage Bioreactors: Reactor Geometry and Performance Journal of Environmental Engineering. 137: 213-220. DOI: 10.1061/(Asce)Ee.1943-7870.0000316 |
0.701 |
|
| 2011 |
Stenback GA, Crumpton WG, Schilling KE, Helmers MJ. Rating curve estimation of nutrient loads in Iowa rivers Journal of Hydrology. 396: 158-169. DOI: 10.1016/J.Jhydrol.2010.11.006 |
0.301 |
|
| 2011 |
Qi Z, Helmers MJ, Kaleita AL. Soil water dynamics under various agricultural land covers on a subsurface drained field in north-central Iowa, USA Agricultural Water Management. 98: 665-674. DOI: 10.1016/J.Agwat.2010.11.004 |
0.722 |
|
| 2010 |
Perez-Bidegain M, Helmers MJ, Cruse R. Modeling phosphorus transport in an agricultural watershed using the WEPP model. Journal of Environmental Quality. 39: 2121-9. PMID 21284310 DOI: 10.2134/Jeq2010.0121A |
0.756 |
|
| 2010 |
Zhou X, Helmers MJ, Asbjornsen H, Kolka R, Tomer MD. Perennial filter strips reduce nitrate levels in soil and shallow groundwater after grassland-to-cropland conversion. Journal of Environmental Quality. 39: 2006-15. PMID 21284298 DOI: 10.2134/Jeq2010.0151 |
0.48 |
|
| 2010 |
Gassman PW, Tisl JA, Palas EA, Fields CL, Isenhart TM, Schilling KE, Wolter CF, Seigley LS, Helmers MJ. Conservation practice establishment in two northeast Iowa watersheds: Strategies, water quality implications, and lessons learned Journal of Soil and Water Conservation. 65: 381-392. DOI: 10.2489/Jswc.65.6.381 |
0.453 |
|
| 2010 |
Qi Z, Helmers MJ. Soil Water Dynamics under Winter Rye Cover Crop in Central Iowa Vadose Zone Journal. 9: 53. DOI: 10.2136/Vzj2008.0163 |
0.71 |
|
| 2010 |
Christianson LE, Castelló A, Christianson RD, Helmers MJ, Bhandari A. Technical Note: Hydraulic Property Determination of Denitrifying Bioreactor Fill Media Applied Engineering in Agriculture. 26: 849-854. DOI: 10.13031/2013.34946 |
0.645 |
|
| 2010 |
Andersen DS, Burns RT, Moody LB, Helmers MJ, Horton R, Pederson CH. Use of the Soil-Plant-Air-Water Model to Predict Hydraulic Performance of Vegetative Treatment Areas Controlling Open Lot Runoff Transactions of the Asabe. 53: 537-543. DOI: 10.13031/2013.29568 |
0.434 |
|
| 2010 |
Andersen DS, Burns RT, Moody LB, Helmers MJ, Horton R. Comparison of the Iowa State University Effluent Limitation Guidelines Model with the Soil-Plant-Air-Water Model for Evaluating Containment Basin Performance Transactions of the Asabe. 53: 207-217. DOI: 10.13031/2013.29496 |
0.437 |
|
| 2010 |
Arora K, Mickelson SK, Helmers MJ, Baker JL. Review of Pesticide retention processes occurring in buffer strips receiving agricultural runoff1 Journal of the American Water Resources Association. 46: 618-647. DOI: 10.1111/J.1752-1688.2010.00438.X |
0.372 |
|
| 2010 |
Qi Z, Helmers MJ. The conversion of permittivity as measured by a PR2 capacitance probe into soil moisture values for Des Moines lobe soils in Iowa Soil Use and Management. 26: 82-92. DOI: 10.1111/J.1475-2743.2009.00256.X |
0.665 |
|
| 2009 |
Zhou X, Helmers M, Al-Kaisi M, Hanna H. Cost-effectiveness and cost-benefit analysis of conservation management practices for sediment reduction in an Iowa agricultural watershed Journal of Soil and Water Conservation. 64: 314-323. DOI: 10.2489/Jswc.64.5.314 |
0.466 |
|
| 2009 |
Christianson L, Bhandari A, Helmers M. Emerging technology: Denitrification bioreactors for nitrate reduction in agricultural waters Journal of Soil and Water Conservation. 64. DOI: 10.2489/Jswc.64.5.139A |
0.663 |
|
| 2009 |
Riley KD, Helmers MJ, Lawlor PA, Singh R. Water Balance Investigation of Drainage Water Management in Non-Weighing Lysimeters Applied Engineering in Agriculture. 25: 507-514. DOI: 10.13031/2013.27470 |
0.493 |
|
| 2009 |
Roberts AM, Helmers MJ, Fillery IRP. The adoptability of perennial-based farming systems for hydrologic and salinity control in dryland farming systems in Australia and the United States of America Crop and Pasture Science. 60: 83. DOI: 10.1071/Cp08164 |
0.339 |
|
| 2009 |
Singh R, Helmers MJ, Kaleita AL, Takle ES. Potential Impact of Climate Change on Subsurface Drainage in Iowa's Subsurface Drained Landscapes Journal of Irrigation and Drainage Engineering. 135: 459-466. DOI: 10.1061/(Asce)Ir.1943-4774.0000009 |
0.384 |
|
| 2009 |
Zhou X, Al-Kaisi M, Helmers M. Cost effectiveness of conservation practices in controlling water erosion in Iowa Soil and Tillage Research. 106: 71-78. DOI: 10.1016/J.Still.2009.09.015 |
0.496 |
|
| 2009 |
Tomer MD, Dosskey MG, Burkart MR, James DE, Helmers MJ, Eisenhauer DE. Methods to prioritize placement of riparian buffers for improved water quality Agroforestry Systems. 75: 17-25. DOI: 10.1007/S10457-008-9134-5 |
0.462 |
|
| 2008 |
Dosskey MG, Helmers MJ, Eisenhauer DE. A design aid for determining width of filter strips Journal of Soil and Water Conservation. 63: 232-241. DOI: 10.2489/Jswc.63.4.232 |
0.399 |
|
| 2008 |
Lawlor PA, Helmers MJ, Baker JL, Melvin SW, Lemke DW. Nitrogen Application Rate Effect on Nitrate-Nitrogen Concentration and Loss in Subsurface Drainage for a Corn-Soybean Rotation Transactions of the Asabe. 51: 83-94. DOI: 10.13031/2013.24229 |
0.408 |
|
| 2008 |
Schilling KE, Helmers M. Tile drainage as karst: Conduit flow and diffuse flow in a tile-drained watershed Journal of Hydrology. 349: 291-301. DOI: 10.1016/J.Jhydrol.2007.11.014 |
0.401 |
|
| 2008 |
Asbjornsen H, Shepherd G, Helmers M, Mora G. Seasonal patterns in depth of water uptake under contrasting annual and perennial systems in the Corn Belt Region of the Midwestern U.S Plant and Soil. 308: 69-92. DOI: 10.1007/S11104-008-9607-3 |
0.434 |
|
| 2008 |
Schilling KE, Helmers M. Effects of subsurface drainage tiles on streamflow in Iowa agricultural watersheds: Exploratory hydrograph analysis Hydrological Processes. 22: 4497-4506. DOI: 10.1002/Hyp.7052 |
0.466 |
|
| 2007 |
Singh R, Helmers MJ, Crumpton WG, Lemke DW. Predicting effects of drainage water management in Iowa's subsurface drained landscapes Agricultural Water Management. 92: 162-170. DOI: 10.1016/J.Agwat.2007.05.012 |
0.454 |
|
| 2007 |
Asbjornsen H, Mora G, Helmers MJ. Variation in water uptake dynamics among contrasting agricultural and native plant communities in the Midwestern U.S Agriculture, Ecosystems and Environment. 121: 343-356. DOI: 10.1016/J.Agee.2006.11.009 |
0.439 |
|
| 2006 |
Helmers MJ, Eisenhauer DE. Overland flow modeling in a vegetative filter considering non-planar topography and spatial variability of soil hydraulic properties and vegetation density Journal of Hydrology. 328: 267-282. DOI: 10.1016/J.Jhydrol.2005.12.026 |
0.391 |
|
| 2006 |
Singh R, Helmers MJ, Qi Z. Calibration and validation of DRAINMOD to design subsurface drainage systems for Iowa's tile landscapes Agricultural Water Management. 85: 221-232. DOI: 10.1016/J.Agwat.2006.05.013 |
0.699 |
|
| 2005 |
Helmers MJ, Eisenhauer DE, Dosskey M, Franti TG, McCullough MC. Flow pathways and sediment trapping in a field-scale vegetative filter Transactions of the Asabe. 48: 955-968. DOI: 10.13031/2013.18508 |
0.347 |
|
| 2005 |
Helmers MJ, Eisenhauer DE, Franti TG, Dosskey MG. Modeling sediment trapping in a vegetative filter accounting for converging overland flow Transactions of the Asabe. 48: 541-555. DOI: 10.13031/2013.18328 |
0.35 |
|
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