Hydro-Gro ( 10-0-0) and UAN 32 (32-0-0) were applied once every 10, 15 or 30 days on a bermudagrass green overseeded with Poa trivialis at the rate of 9.0 lbs. PLS/M in mid October, 2007. Regardless of application frequency, each product was applied to achieve a 020. lb./N/1000 ft² nitrogen rate. Hydro-Gro produced a darker green turf than did the UAN, when averaged over all application timings. Enhanced turfgrass color was more consistent when Hydro-Gro was applied every 15 days (2x/monthly) compared to the 10 and 30 day application timings of this product. For the UAN source, no single application timing scheme produced a consistently darker Poa trivialis turf compared to any other application timing for the same product. Turfgrass quality was slightly greater on average for Hydro-Gro than that of the UAN treatments, although each source produced a better quality turf at one time or another within the two month application / evaluation period (Nov 15, 2007 to Jan 3, 2008). The addition of supplemental P and K did not enhance visual color or quality for either of these N source products from November to early January. Neither N source, their application timings, or the addition of supplemental P and K had any affect on turfgrass density, texture or overall uniformity.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/216659 |
| Date | 02 1900 |
| Creators | Kopec, David M., Gilbert, Jeff J., Pessarakli, Mohammed, Nolan, Steve |
| Contributors | Kopec, David M. |
| Publisher | College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ) |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Article |
| Relation | AZ1487, Series P-155 |
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