1992 Proceedings: Contents1. Herbicide Movement in Soils Under No-Till and Reduced Till Treatments (progress report)2. Laboratory Verification of a Sampling Protocol Using Teflon® Bailers for Sampling Shallow, Large-Diameter Wells for Agricultural Chemicals (progress report) 3. Defining Limits of Natural Abundance 15N Value Methodology to Identify and Quantify Sources of Nitrate in Groundwater (progress report) 4. Agricultural Policy Tools to Protect Water Quality in Corn Belt Watersheds (progress report) 5. Modeling Transport of Agricultural Chemicals in a Dual-Porosity System Resulting from Macropores (progress report) 6. Seasonal Variations in Preferential Flow Under Corn and Soybean Cropping (progress report) 7. Buried Treasure: 50 Ways Farmers Can Protect Their Goundwater (progress report) 8. Agricultural Practices for Water Quality Improvement (progress report) 9. A Historical Assessment of Crop Production and Chemical Use on Economically Viable Farms in Illinois (progress report) 10. Research on the Bulk Saturated Hydraulic Conductivity of Glacial Till: Multiple-Well and Single-Well Test Methods (progress report) 11. Facilitated Transport of Agricultural Chemicals by Colloidal Materials (progress report) 12. Groundwater Contributions to Atrazine Loadings in Streams: First-Year Summary (progress report) 13. Spatial and Temporal Variability of Herbicide Retention in Soil During the Growing Season (progress report) 14. Agricultural Chemical Contamination of Shallow-Bored and Dug Wells
(progress report)
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