| Nitrogen leaching through sand-based golf greens under golf course play and management
| Johnston, William J.; Golob, Charles T.; Miltner, Eric D. 2001. Turfgrass Field Day: Oregon State & Washington State. August 14. p. 34-36.
| More | 165726 |
| Preliminary report on the comparison of organic supplements with organic and synthetic fertilizers on bentgrass turf
| Fuester, Mike; Cook, Tom. 2001. Turfgrass Field Day: Oregon State & Washington State. August 14. p. 37-40.
| More | 165728 |
| OSU summer nitrogen source trial
| Anonymous. 2001. Turfgrass Field Day: Oregon State & Washington State. August 14. p. 44-45.
| More | 165732 |