Turfgrass Epistemology
This podcast explores how we know what we know about turfgrass science. If you are a lawn care operator, sport field manager, sod producer, golf superintendent, or a home owner, this podcast provides evidence-based information to help you better manage your turfgrass.
- Update frequency
- every 3 days
- Average duration
- 76 minutes
- Episodes
- 212
- Years Active
- 2023 - 2025
S2 E27 Potassium source and rate effect on creeping bentgrass
Waddington, D.A., Moberg, E.L. and Duich, J.M. (1972), Effect of N Source, K Source, and K Rate on Soil Nutrient Levels and the Growth and Elemental Composition of Penncross Creeping Bentgrass, Agros…
S2 E26 Potassium and Phosphorus on Creeping Bentgrass Putting Greens
Johnson, P.G., Koenig, R.T. and Kopp, K.L. (2003), Nitrogen, Phosphorus, and Potassium Responses and Requirements in Calcareous Sand Greens. Agron. J., 95: 697-702. https://doi.org/10.2134/agronj2003…
S2 E25 Potassium is Stress-full.
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S2 E24 Long-Term Influence of N and K on Perennial Ryegrass Turf
Ebdon, J.S., DaCosta, M., Spargo, J. and Dest, W.M. (2013), Long-term Effects of Nitrogen and Potassium Fertilization on Perennial Ryegrass Turf. Crop Science, 53: 1750-1761. https://doi.org/10.2135/…
S2 E23 Kentucky Bluegrass, Potassium, and Nitrogen.
Fitzpatrick, R.J.M. and Guillard, K. (2004), Kentucky Bluegrass Response to Potassium and Nitrogen Fertilization. Crop Science, 44: 1721-1728. https://doi.org/10.2135/cropsci2004.1721
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S2 E22 Dr. Richardson - Turfgrass Uptake of Foliar Urea
Stiegler, J.C., Richardson, M.D. and Karcher, D.E. (2011), Foliar Nitrogen Uptake Following Urea Application to Putting Green Turfgrass Species. Crop Sci., 51: 1253-1260. https://doi.org/10.2135/crop…
S2 E21 Is UMaxx U-seless for Turfgrass?
Guertal, E.A. and Howe, J.A. (2012), Nitrate, Ammonium, and Urea Leaching in Hybrid Bermudagrass as Affected by Nitrogen Source. Agron. J., 104: 344-352. https://doi.org/10.2134/agronj2011.0262
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S2 E20 Type of Granular Urea Influences Nitrogen Volatilization from Turfgrass
Volk, G.M. (1959), Volatile Loss of Ammonia Following Surface Application of Urea to Turf or Bare Soils. Agron. J., 51: 746-749. https://doi.org/10.2134/agronj1959.00021962005100120016x
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S2 E19 Kentucky Bluegrass Managed with Sprayable Nitrogen Programs
Moore, R.W., Christians, N.E. and Agnew, M.L. (1996), Response of Three Kentucky Bluegrass Cultivars to Sprayable Nitrogen Fertilizer Programs. Crop Science, 36: 1296-1301. https://doi.org/10.2135/cr…
S2 E18 How much water should you apply after applying urea?
Bowman, D. C., Paul, J. L., Davis, W. B., & Nelson, S. H. (1987). Reducing Ammonia Volatilization from Kentucky Bluegrass Turf by Irrigation. HortScience, 22(1), 84-87. https://doi.org/10.21273/HORTS…
S2 E17 February 2024 Comments and Voicemail
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S2 E16 Dr. Christians - Do Urease Inhibitors Enhance Turfgrass Quality or Growth?
Joo, Y.K., Christians, N.E., Spear, G.T. and Bremner, J.M. (1992), Evaluation of Urease Inhibitors as Urea Amendments for Use on Kentucky Bluegrass Turf. Crop Science, 32: 1397-1401 cropsci1992.00111…
S2 E15 Does NBPT increase N uptake in Kentucky bluegrass?
Joo, Y.K., Christians, N.E. and Blackmer, A.M. (1991), Kentucky Bluegrass Recovery of Urea-Derived Nitrogen-15 Amended with Urease Inhibitor. Soil Science Society of America Journal, 55: 528-530.
ht…
S2 E14 Is stabilized nitrogen worthless for turfgrass?
Henning, S.W., Branham, B.E. & Mulvaney, R.L. Response of turfgrass to urea-based fertilizers formulated to reduce ammonia volatilization and nitrate conversion. Biol Fertil Soils 49, 51–60 (2013). h…
S2 E13 Turfgrass quality, urea, and dycandiamide. Is DCD worth the money?💵
Mosdell, D.K., Daniel, W.H. and Freeborg, R.P. (1986), Evaluation of Dicyandiamide-Amended Fertilizers on Kentucky Bluegrass. Agron. J., 78: 801-806. https://doi.org/10.2134/agronj1986.00021962007800…
S2 E12 Liquid Nitrogen Applied to Kentucky Bluegrass.
Spangenberg, B.G., Fermanian, T.W. and Wehner, D.J. (1986), Evaluation of Liquid-Applied Nitrogen Fertilizers on Kentucky Bluegrass Turf. Agron. J., 78: 1002-1006. https://doi.org/10.2134/agronj1986.…
S2 E11 One Nitrogen Application per Year. Will it Work?
Soldat, D.J., Petrovic, A.M. and Barlow, J. (2008). Turfgrass Response to Nitrogen Sources with Varying Nitrogen Release Rates. Acta Hortic. 783, 453-462
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S2 E10 Nitrogen Fertilizer Pricing
Shaddox, T. W., & Unruh, J. B. (2021). Determining Nitrogen Fertilizer Cost Using Turfgrass Response. HortTechnology. 31(4), 470-478.
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S2 E9 Turfgrass Response to Various Nitrogen Sources
Landschoot, P.J., and D.V. Waddington. 1987. Response of turfgrass to various nitrogen sources. Soil Sci. Soc. Am. J. 51:225-230.
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S2 E8 Turfgrass Response to Slow Release Nitrogen Fertilizer
Carrow, R.N. (1997), Turfgrass Response to Slow-Release Nitrogen Fertilizers. Agron. J., 89: 491-496.
Live calls and voice mail: 859-444-4234
Live Show:
M, T, W - 10:00 am EST
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