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Submissions from 2015

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Demonstrating farrowing alternatives for small farms: Insulated tents for sows and pigs, Peter J. Lammers and Jay D. Harmon

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Investigation of bacteria transport and resistance mechanisms and implications for water quality from confinement swine and beef grazing production systems in Iowa, Michelle Soupir, Matt Helmers, Michael L. Thompson, Laura R. Jarboe, Antonio P. Mallarino, and Ramesh S. Kanwar

Submissions from 2014

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Role of Senior Capstones in 21st Century Technology Undergraduate Programs, Gretchen A. Mosher

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An automated mechanical intra-row weed removal system for vegetable crops, Lie Tang

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Field evaluation and system improvement of a semi-automated mechanical intra-row weeder for vegetable crops, Lie Tang and Kathleen Delate

Submissions from 2013

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Drainage water quality impacts of current and future agricultural management practices, Matt Helmers, Ramesh S. Kanwar, and Antonio P. Mallarino

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Agronomic, environmental and economic performance of alternative biomass cropping systems, Lisa A. Schulte Moore, Kenneth J. Moore, Richard B. Hall, Arne Hallam, and Matt Helmers

Submissions from 2012

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Integrated Drainage-Wetland Systems for Reducing Nitrate Loads from Des Moines Lobe Watersheds, William G. Crumpton, Matthew J. Helmers, Greg A. Stenback, Dean W. Lemke, and Shawn Richmond

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Soil moisture dynamics and plant transpiration under contrasting annual-perennial cover types, Matt Helmers, Heidi Asbjornsen, and Amy L. Kaleita

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Evaluating denitrifying bioreactors for edge-of-field nitrogen management in Iowa's tile-drained landsacpes, Matt Helmers and Alok Bhandari

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A Comprehensive Assessment of Aviary Laying-Hen Housing System for Egg Production in the Midwest, Hongwei Xin, Morgan Hayes, Maro A. Ibarburu, Suzanne T. Millman, Rebecca L. Parsons, Byron F. Brehm-Stecher, Hyun Jung Kim, and Hong Li

Submissions from 2011

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Water and Nutrient Research: In-field and Offsite Strategies—2010 Annual Report, Matthew J. Helmers, William G. Crumpton, Carl H. Pederson, Greg A. Stenback, and Bob Zhou

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U.S. Billion-ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry, United States Department of Energy, Robert D. Perlack, Laurence M. Eaton, Anthony F. Turhollow Jr., Matt H. Langholtz, Craig C. Brandt, Mark E. Downing, Robin L. Graham, Lynn L. Wright, Jacob M. Kavkewitz, Anna M. Shamey, Richard G. Nelson, Bryce J. Stokes, William L. Rooney, David J. Muth Jr., J. Richard Hess, Jared M. Abodeely, Chad Hellwinckel, Danial De La Torre Ugarte, Daniel C. Yoder, James P. Lyon, Timothy G. Rials, Timothy A. Volk, Thomas S. Buchholz, Lawrence P. Abrahamson, Robert P. Anex, Thomas B. Voigt, William Berguson, Don E. Riemenschneider, Douglas Karlen, Jane M. F. Johnson, Robert B. Mitchell, Kenneth P. Vogel, Edward P. Richard Jr., John Tatarko, Larry E. Wagner, Kenneth E. Skog, Patricia K. Lebow, Dennis P. Dykstra, Marilyn A. Buford, Patrick D. Miles, D. Andrew Scott, James H. Perdue, Robert B. Rummer, Jamie Barbour, John A. Stanturf, David B. McKeever, Ronald S. Zalesny Jr., Edmund A. Gee, P. Daniel Cassidy, and David Lightle

Submissions from 2010

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Drainage water quality impacts of agricultural management practices, Matthew J. Helmers, Ramesh S. Kanwar, and Antonio P. Mallarino

Submissions from 2009

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Southeastern Broiler Gaseous and Particulate Matter Emissions Monitoring, Robert T. Burns, Hongwei Xin, Richard S. Gates, Hong Li, Lara B. Moody, Douglas G. Overhults, John W. Earnest, Steven J. Hoff, and Steven Trabue

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Assessing Hen Response to Ammonia and Thermal Comfort Combinations via Preference Test, Morgan Hayes, Hongwei Xin, and Hong Li

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Water and Nutrient Research: In-field and Offsite Strategies—2008 Annual Report, Matthew J. Helmers, William G. Crumpton, Peter Lawlor, Carl H. Pederson, Greg A. Stenback, Reid Christianson, and David Green

Submissions from 2007

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Tyson Broiler Ammonia Emission Monitoring Project: Final Report, Robert T. Burns, Hongwei Xin, Richard S. Gates, Hong Li, Steven J. Hoff, Lara B. Moody, Douglas G. Overhults, and John W. Earnest

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Water and Nutrient Research: In-field and Offsite Strategies—2005/2006 Annual Report, Matthew J. Helmers, William G. Crumpton, Peter Lawlor, Carl H. Pederson, and Jana Stenback

Submissions from 2006

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Potential Benefits of Wetland Filters for Tile Drainage Systems: Impact on Nitrate Loads to Mississippi River Subbasins, William G. Crumpton, Greg A. Stenback, B. A. Miller, and Matthew J. Helmers

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Environmental Impacts and Biosecurity of Composting for Emergency Disposal of Livestock Mortalities, Thomas D. Glanville, Tom L. Richard, Jay D. Harmon, Donald L. Reynolds, Heekwon Ahn, and Sevinc Akinc

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Water and Nutrient Research: In-field and Offsite Strategies—2005 Annual Report, Matthew J. Helmers, William G. Crumpton, Peter Lawlor, Carl H. Pederson, Jana Stenback, and Greg A. Stenback

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Laying Hen Manure Characteristics and Air Emissions as Affected by Genetic Strains, Hongwei Xin, Robert T. Burns, James Arthur, and Stacey Ann Roberts

Submissions from 2005

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Ammonia Emissions Rate from Composted Laying Hen Manure, Paul C. Harrison, Ken W. Koelkebeck, and Hongwei Xin

Submissions from 2004

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Understanding the potential of phosphorus transport to water resources via leaching, James L. Baker, Antonio P. Mallarino, and Stewart W. Melvin

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Quality of the 2004 Soybean Crop from the United States, Thomas J. Brumm, Charles R. Hurburgh Jr., and Glen R. Rippke

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Optimizing solid manure application by improving distribution, H. Mark Hanna, Thomas L. Richard, and Graeme R. Quick

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Environmental impacts of use of poultry manure on water quality, Rameshwar S. Kanwar, Jeffery C. Lorimor, and Hongwei Xin

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Agronomic and environmental soil testing for phosphorus and threshold levels in soils, Antonio P. Mallarino, James L. Baker, Jeffery C. Lorimor, and Rameshwar S. Kanwar

Submissions from 2003

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Quality of the 2003 Soybean Crop in the United States, Thomas J. Brumm and Charles R. Hurburgh Jr.

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Impacts of Compost Blankets on Erosion Control, Revegetation, and Water Quality at Highway Construction Sites in Iowa, Thomas D. Glanville, Tom L. Richard, and Russell Alan Persyn

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Reducing anhydrous ammonia application by optimizing distribution, H. Mark Hanna, Thomas S. Colvin, Michael L. White, and James L. Baker

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Soil amendment effects of crop-weed interactions, Matthew Z. Liebman and Thomas L. Richard

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Optimizing swine hoop manure management of soil quality and crop system performance, Thomas L. Richard, Matthew Z. Liebman, Cynthia A. Cambardella, and Derrick N. Exner

Submissions from 2002

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Quality of the 2002 Soybean Crop in the United States, Thomas J. Brumm and Charles R. Hurburgh Jr.

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Demonstration of swine carcass composting as part of an environmentally friendly production system, Jay D. Harmon, Thomas D. Glanville, and Thomas L. Richard

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Environmental impacts of the use of poultry manure for agricultural production system, Rameshwar S. Kanwar, Jeffery C. Lorimor, and Hongwei Xin

Submissions from 2001

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Socio-technical and environmental dimensions of swine manure management decisions, Clare C. Hinrichs and Thomas Richard

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Quality of the 2001 Soybean Crop in the United States, Charles R. Hurburgh Jr.

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Nitrogen conservation in swine manure composting land-application systems, Thomas L. Richard, Cynthia A. Cambardella, and Thomas E. Loynachan

Submissions from 2000

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Economic analysis of variable rate management for corn and soybean systems, William D. Batchelor, Bruce A. Babcock, Alfred M. Blackmer, Richard M. Cruse, Thomas S. Colvin, Ramesh S. Kanwar, and U. Sunday Tim

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Quality of the 2000 Soybean Crop in the United States, Charles R. Hurburgh Jr.

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Evaluation of interactions within a shelterbelt agroecosystem, Carl W. Mize, William D. Batchelor, and Richard M. Cruse

Submissions from 1999

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Constructed wetlands to reduce agricultural chemical transport to water resources, William G. Crumpton, James L. Baker, Stephen W. Fisher, B. Hecht, Jana Z. Stenback, C. Zmolek, Stewart W. Melvin, and Dean W. Lemke

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Integrated pest management for wireworms, Larry P. Pedigo, Marlin E. Rice, and William D. Batchelor

Submissions from 1998

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Impacts of swine manure application and alternative N-management practices on productivity, sustainability and water quality, Rameshwar S. Kanwar, Douglas Karlen, Cynthia A. Cambardella, Thomas Moorman, Thomas R. Steinheimer, and Thomas S. Colvin

Submissions from 1997

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Effective high-speed, high-residue rowcrop cultivation, H. Mark Hanna, Robert G. Hartzler, Donald C. Erbach, and Ron Rosmann

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Effect of tillage, crop rotation and innovative nitrogen and pesticide management practices on productivity, sustainability and water quality, Rameshwar S. Kanwar, Douglas Karlen, Cynthia A. Cambardella, Thomas B. Moorman, T. R. Steinheimer, and Thomas S. Colvin

Submissions from 1996

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Low-input sustainable sow housing for Iowa, Mark S. Honeyman, Steven J. Hoff, James McKean, Dwaine S. Bundy, and Emmett Stevermer

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The effect of organic versus chemical fertilizers on insect pathogens, Leslie C. Lewis, David I. Shapiro, and Stewart W. Melvin

Submissions from 1995

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Composting for environmentally sound management of poultry and swine mortalities in Iowa, Thomas D. Glanville

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Managing livestock manure for profitability and water quality protection, Stewart W. Melvin

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GIS-based environmental and economic analysis of integrated crop-livestock production systems in southern Iowa, U. Sunday Tim, Robert W. Jolly, and Daniel Otto

Submissions from 1994

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Evaluation of tillage and crop rotation effects on groundwater quality—Nashua project, Rameshwar S. Kanwar, Douglas Karlen, Thomas S. Colvin, William W. Simpkins, and Vince J. McFadden

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Buffer strips for controlling herbicide losses, Steven K. Mickelson and James L. Baker

Submissions from 1993

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Efficient herbicide application to reduce environmental losses, James L. Baker and Steven K. Mickelson

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Pesticides and their major degradation products as potential contaminants of groundwater, Joel R. Coats, L. Somasundaram, and Ramesh S. Kanwar

Submissions from 1992

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Effect of split N-fertilizer applications on drainage water quality and NO3-N leaching, Ramesh S. Kanwar and James L. Baker

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Nitrogen efficiency with no-till and conventional tillage cropping systems for energy conservation and water quality benefits, Rameshwar S. Kanwar and James L. Baker

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Irrigation and disease management of vegetables, Henry G. Taber, Mark L. Gleason, and Stewart W. Melvin

Submissions from 1949

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Introducing Agricultural Engineering in China, Edwin L. Hansen, Howard F. McColly, Archie A. Stone, and J. Brownlee Davidson