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    Foliar Applications of Hydro-Gro and UAN 32 on Overseeded Bermudagrass Greens Turf

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    Author
    Kopec, David M.
    Gilbert, Jeff J.
    Pessarakli, Mohammed
    Nolan, Steve
    Issue Date
    2009-02
    Keywords
    Agriculture -- Arizona
    Turfgrasses -- Arizona
    Turf management -- Arizona
    Plants, ornamental -- Arizona
    Turfgrasses -- Fertility
    
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    Publisher
    College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ)
    Journal
    Turfgrass, Landscape and Urban IPM Research Summary
    Abstract
    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.
    Series/Report no.
    AZ1487
    Series P-155
    Collections
    Turfgrass, Landscape and Urban IPM Research Report 2009

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