Research and Demonstrations
This area will have the latest research based, unbiased information on nitrogen and phosphorous management, conservation tillage and other research programs focused on improving farming practices and the quality of Iowa's environment.
Iowa State University
Agricultural and Biosystems Engineering Department
Fiscal Year 1997 Abstract
Using Compost for a Safer Environment
Agronomy Department
Phosphorus in Iowa Soils
Maquoketa River Watershed
Summary of results, field demonstrations, crop year 2000 (technical discussion)
Summary of results, 1999 field demonstration sites
Water Resources Research Institute
Effect of poultry manure on water quality
Effect of swine manure on water quality
N-management system effects on water quality
Iowa State University Extension
Maquoketa River Watershed Project
2001 Commercial Fertilizer Yield Response--Plot 1
2001 Commercial Fertilizer Yield Response--Plot 2
2001 Commercial Fertilizer Yield Response--Plot 3
2001 Manure and Commercial Fertilizer Corn Yield Study--Plot 1
2001 Manure and Commercial Fertilizer Corn Yield Study--Plot 2
2001 Manure and Nitrogen Yield Response
Other Extension Projects
2000 Nitrogen Management in Zone-Till Corn - Benton County
1998-2000 Washington County Manure Plot Results
1999 Wright County Manure Nutrient Management Demonstration
(Excel File) 1992-1998 On-farm research summary, NE IA Water Quality Demonstration Project
1987-1994 Summary of Corn Yields - Big Spring Basin Water Quality Project
Iowa Department of Agriculture and Land Stewardship-Soil Conservation Division
Integrated Farm and Livestock Management Demonstration Project
USDA Agricultural Research Service-National Soil Tilth Laboratory
Agricultural Research Magazine
Publications
Research Programs
Software
Weather
USDA Economic Research Service
2001 Commercial Fertilizer Yield Response--Plot 1