| Natural organic source evaluation on Kentucky bluegrass
| Street, John. 1993. Turfgrass Research Report - 1993 [Ohio State]. p. 56-59.
| More Keywords | 59855 |
| Polymer-coated urea source evaluation on Kentucky bluegrass
| Street, John. 1993. Turfgrass Research Report - 1993 [Ohio State]. p. 60-67.
| More Keywords | 59856 |
| Nitrogen source and rate effect on Kentucky bluegrass
| Street, John. 1993. Turfgrass Research Report - 1993 [Ohio State]. p. 68-72.
| More Keywords | 59854 |