John E. Sawyer
| Dry fall leads to field fires | IC-484(23) -- October 23, 2000 |
| Anhydrous application and dry soils | IC-484(23) -- October 23, 2000 |
| Management of phosphorus for crop production | IC-484(23) -- October 23, 2000 |
| Soil testing and available phosphorus | IC-484(22) -- September 18, 2000 |
| Phosphorus Basics | IC-484(20) -- August 7, 2000 |
| What about N losses in 2000? | IC-484(16) -- July 3, 2000 |
| Potassium deficiency symptoms in corn | IC-484(15) -- June 26, 2000 |
| Why manage phosphorus? | IC-484 (6) -- April 24, 2000 |
| Estimating losses when cornstalk fields are accidentally burnt | IC-484 (4) -- April 10, 2000 |
| Estimating nitrogen losses | IC-482(14) -- June 14, 1999 |
| Broadcast postemergence UAN solution | IC-482(11) -- May 24, 1999 |
| Broadcast postemergence UAN solution | IC-482(11) -- May 24, 1999 |
| Interpreting P and K soil test results | IC-482 (1) -- January 18, 1999 |
| Interpreting P and K soil test results | IC-482 (1) -- January 18, 1999 |
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