| Test cornfields for nitrate if manure was not incorporated | IC-488(10) -- May 27, 2002 |
| Test cornfields for nitrate if manure was not incorporated | IC-488(10) -- May 27, 2002 |
| Field testing T-22™ Planter Box for corn in Iowa | IC-488 (5) -- April 15, 2002 |
| Should fertilizer nitrogen be applied after injected swine manure? | IC-488 (3) -- March 18, 2002 |
| Corn yields at reduced rates of spring nitrogen in 2001 | IC-488 (3) -- March 18, 2002 |
| Should fertilizer nitrogen be applied after injected swine manure? | IC-488 (3) -- March 18, 2002 |
| 75/125 N-rate comparison in 2001 | IC-488 (2) -- February 18, 2002 |
| 75/125 N-rate comparison in 2001 | IC-488 (2) -- February 18, 2002 |
| Fall nitrification happened | IC-488 (1) -- January 21, 2002 |
| It is not too late to apply nitrogen for 2001 | IC-486(16) -- July 2, 2001 |
| Corn roots are just reaching anhydrous bands | IC-486(15) -- June 25, 2001 |
| Soil nitrate concentrations are low this year | IC-486(14) -- June 18, 2001 |
| Nitrate testing: early versus late spring | IC-486 (2) -- February 26, 2001 |
| Early season losses of nitrogen | IC-486 (2) -- February 26, 2001 |
| Optimal N rates in dry years | IC-486 (1) -- January 29, 2001 |
| Save nitrogen dollars after manure | IC-486 (1) -- January 29, 2001 |
| Soil pH and losses of fall-applied ammonia | IC-484(21) -- August 21, 2000 |
| Soil pH and losses of fall-applied ammonia | IC-484(21) -- August 21, 2000 |
| Soil pH and losses of fall-applied ammonia | IC-484(21) -- August 21, 2000 |
| Is fall nitrogen profitable? | IC-484(20) -- August 7, 2000 |
| Hold nitrogen on manured cornfields in 2000 | IC-484 (2) -- February 28, 2000 |
| Monitoring nitrogen deficiencies in corn | IC-482 (PrecisAg) -- May 5, 1999 |
| Rescue fertilization following losses of nitrogen | IC-482 (PrecisAg) -- May 5, 1999 |
| Testing cornstalks for N this fall | IC-480(22) -- September 14, 1998 |
| Sampling fields for nitrate in late spring | IC-480 (7) -- April 27, 1998 |
| Test cornstalks for nitrate this fall | IC-478(22) -- September 15, 1997 |
| Visually rating nitrogen sufficiency | IC-478(19) -- July 28, 1997 |
| Why use the ear-leaf test at silking? | IC-478(18) -- July 21, 1997 |
| Basics of corn tissue testing | IC-478(17) -- July 14, 1997 |
| Nitrogen availability from organic fertilizers | IC-478(14) -- June 23, 1997 |
| What about N credits following soybean? | IC-478(13) -- June 16, 1997 |
| Nitrogen recommendations for addressing weather | IC-478(12) -- June 9, 1997 |
| What about yield goals? | IC-478(11) -- June 2, 1997 |
| Inconsistencies in results of soil nitrate testing | IC-478(10) -- May 26, 1997 |
| Check N levels in manured cornfields this June | IC-478 (9) -- May 19, 1997 |
| New nitrogen fertilizer recommendations for corn | IC-478 (7) -- May 5, 1997 |
