Table 9. Per acre production of crude protein from crested wheatgrass plots fertilized annually with ammonium nitrate (33-0-0). | |||||
Treatment | Crude protein - lbs. per acre | 4-year average | |||
1955 | 1956 | 1957 | 1958 | ||
Check (No N) | 98 | 64 | 123 | 114 | 100 |
Very light (25# N) | 174 | 116 | 265 | 181 | 184 |
Light (50# N) | 176 | 131 | 293 | 210 | 203 |
Medium (100# N) | 244 | 119 | 315 | 261 | 235 |