Nigrogen: UAN With Georga Pacific GP 624G45
| Trial Report | Stalk Nitrate Report | County | Normal Rate Yield bu./A | Reduced Rate Yield bu./A | Reduced Rate With GP 24G45 Yield bu./A |
| ST2009071A | ST2009071A Stalk Nitrate | Boone | 205.8 | 194.8 | 194.0 |
| ST2009090A | ST2009090A Stalk Nitrate | Emmet | 209.5 | 207.3 | 205.8 |
| ST2009090B | ST2009090B Stalk Nitrate | Emmet | 204.8 | 204.7 | 205.5 |
| ST2009298A | ST2009298A Stalk Nitrate | Black Hawk | 176.6 | 172.3 | 172.1 |
| ST2009299A | ST2009299A Stalk Nitrate | Black Hawk | 198.7 | 191.1 | 191.0 |
| ST2009374A | ST2009374A Stalk Nitrate | Story | NA | 197.1 | 190.2 |
