Table 10. Forage production on crested wheatgrass plots fertilized every other year* with ammonium nitrate (33-0-0). | |||||||
Year | Dry weight yield - lbs. per acre | Percentage increase over check | |||||
Check | 25# N | 50# N | 100# N | 25# N | 50# N | 100# N | |
1957 | 1239 | 1714 | 2013 | 2001 | 38.3 | 62.5 | 61.5 |
1958 | 1003 | 1016 | 1114 | 1250 | 1.3 | 11.1 | 24.6 |
1959 | 1094 | 1230 | 1266 | 1659 | 12.4 | 15.7 | 51.6 |
3-yr. Average | 1112 | 1320 | 1464 | 1637 | 18.7 | 31.7 | 47.2 |
*Fertilizer applied in spring 1957 and 1959. |