Full TGIF Record # 44849
Item 1 of 1
Publication Type:
Author(s):Horst, Garald R.; Wicklund, Eric; Wit, Leonard
Author Affiliation:Turfgrass Physiologist, Horticulture Technician, and JSA Turf Research Facility-ARDC Unit Manager, Turfgrass Science Team, University of Nebraska, Institute of Agriculture and Natural Resources
Title:Evaluation of Scotts products on Kentucky bluegrass
Section:Fertility and growth regulator management
Other records with the "Fertility and growth regulator management" Section
Source:Turfgrass Research Report - 1992 [Nebraska]. 1992, p. 69-71.
# of Pages:3
Publishing Information:[Lincoln, NE]: University of Nebraska
Keywords:TIC Keywords: Poa pratensis; Slow-release fertilizers; Clipping weight; Visual evaluation; Sulfur-coated urea; Methylene urea
Abstract/Contents:The objective of the 1992 Scotts fertilizer field study was to evaluate the release rate of plant available nitrogen from polymer coated sulfur coated urea (SCU) products. In the study, two SCU fertilizer products coated with differing thickness or weights of a polymer were applied to Kentucky bluegrass. The release of nitrogen as a function of the polymer weight was assessed through weekly clippings yields and visual color evaluations. The evaluation was performed on Kentucky bluegrass turf under ideal conditions and a relatively high maintenance regime. Performance parameters which include turf clipping yields and color development, provided a clear indication of both the initial availability of nitrogen and the duration of each product application. The polymer coatings of the two products Poly-L and Poly-I provided a significant reduction in the initial release of plant available nitrogen. One would expect the benefit of this initial nitrogen saving to appear as available nitrogen over the non-coated SCU late in the application period (50 to 70 days). The shifting of the nitrogen release curve imposed by the polymer coating did not, however, result in statistically superior color or increased clipping yields during this latter portion of the application period. Table 1 provides the clipping yield of 'Touchdown' Kentucky bluegrass to applications of Scotts poly-coated SCU products. Table 2 lists the visual quality ratings for the 'Touchdown' Kentucky bluegrass treated with Scotts poly-coated SCU products.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Horst, G. R., E. Wicklund, and L. Wit. 1992. Evaluation of Scotts products on Kentucky bluegrass. Turfgrass Res. Rep. Nebr. p. 69-71.
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