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Submissions from 1993

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Establishment of an experimental wetland research complex, William G. Crumpton and Arnold van der Valk

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Sustainable weed control system using natural product allelochemicals to replace conventional herbicides in maize, Jack Dekker

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Reducing pesticide use through environmental monitoring for pest protection, Mark L. Gleason, Paul A. Domoto, Donald R. Lewis, and Michael D. Duffy

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Crops of ancient Iowa: Native plant use and farming systems, William Green and David Asch

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Utilizing potential weed pressures to improve efficiency of weed management programs, Robert G. Hartzler and Thomas B. Smidt

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Incorporating environmental costs into economic injury levels, Leon G. Higley and Wendy Wintersteen

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Weed population dynamics in ridge-tilled soybeans with and without herbicides, Thomas W. Jurik

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Implementing nitrogen management to protect Iowa's groundwater, Kris Kohl, Stewart Melvin, and James Hultgren

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Storm Lake watershed demonstration project: planning phase, Richard Lampe, Jon Hutchins, and Keith Arends

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Poplar tree buffer strips grown in riparian corridors for non-point source pollution control and biomass production, Louis A. Licht and Jerald L. Schnoor

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Optimizing microbial associations to enhance N and P soil nutrient availability, Thomas E. Loynachan, Harold S. McNabb Jr., and Samina Khalil

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Seed coating with environmentally acceptable polymers as an alternative to fungicide treatment of corn and soybeans, Denis C. McGee, Joseph S. Burris, John Lach, Paramjeet S. Grover, and Roman Bilous

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Biological control of the strawberry leaf roller, Ancylis comptana, in Iowa, John J. Obrycki and Aaron D. Gabriel

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Utilizing an entomopathogenic fungus, Beauveria bassiana, for season-long suppression of larval populations of the European corn borer, John J. Obrycki, Leslie C. Lewis, and Edwin C. Berry

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Multispecies toxicity tests using indigenous organisms: predicting pesticide effects in streams, Kurt W. Pontasch

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A developmental approach to the adoption of low-input farming practices, Rebecca S. Roberts and David Lighthall

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Effectiveness of vegetative filter strips, John Schultz and Richard M. Cruse

Submissions from 1992

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Selection of herbaceous energy crops for sustainable agriculture, Irvin C. Anderson, Dwayne R. Buxton, and Arne J. Hallam

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Nitrate and herbicide leaching as affected by conservation tillage, James L. Baker and Patricia L. Boddy

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Demonstration of the unique slow-release characteristic of anhydrous ammonia fertilizer, Alfred M. Blackmer

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DeSoto National Wildlife Refuge demonstration and education project, Marco C. Buske, Gary Guge, Terry Root, and George Gage

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Nitrogen management alternatives for ridge tillage corn, Richard M. Cruse

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Strip intercropping systems, Richard M. Cruse, Donald C. Erbach, Stephen K. Barnhart, Micheal D. Owen, and Walter F. Wedin

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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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Optimal efficiency in the use of Iowa's energy, soil, and feed resources for beef production, James R. Russell, Allen H. Trenkle, Daryl R. Strohbehn, Walter F. Wedin, Stephen K. Barnhart, Arne Hallam, and Mark S. Honeyman

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

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Evaluation for an integrated pest management program for northern corn rootworm extended diapause, Jon J. Tollefson

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Monitoring and modeling cropping system nitrogen for a sustainable agriculture, Delmar Vander Zee, Ronald J. Vos, and Christian L. Goedhart