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Turfgrass EpistemologyS2 E64 Four Companies Selling Calcium. Four Times the Pseudoscience.Join Turfgrass Epistemology to get access to perks:
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2024-07-182h 06Turfgrass EpistemologyS2 E63 History of Soil BalancingChaganti, V.N. and Culman, S.W. (2017), Historical Perspective of Soil Balancing Theory and Identifying Knowledge Gaps: A Review. Crop, Forage & Turfgrass Management, 3: 1-7 cftm2016.10.0072. https://doi.org/10.2134/cftm2016.10.0072
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2024-07-161h 07Turfgrass EpistemologyS2 E62 Should You Apply P, K, and Lime Prior to Seeding Turfgrass?Turner, T.R. and Waddington, D.V. (1983), Soil Test Calibration for Establishment of Turfgrass Monostands. Soil Science Society of America Journal, 47: 1161-1166. https://doi.org/10.2136/sssaj1983.03615995004700060021x
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2024-07-131h 20Turfgrass EpistemologyS2 E61 Soil Testing: P, K, Mg, SO4-2, and MnJoin Turfgrass Epistemology to get access to perks:
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2024-07-0955 minTurfgrass EpistemologyS2 E60 Soil Testing: pH, Salinity, and Cation Exchange CapacityJoin Turfgrass Epistemology to get access to perks:
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2024-07-021h 22Turfgrass EpistemologyS2 E59 Soil Testing: Methods and PhilosophyJoin Turfgrass Epistemology to get access to perks:
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2024-06-291h 25Turfgrass EpistemologyS2 E58 Soil Testing: Sampling Depth and TimingJoin Turfgrass Epistemology to get access to perks:
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2024-06-251h 23Turfgrass EpistemologyS2 E57 Advanced Fertilizer Formulations for TurfgrassJoin Turfgrass Epistemology to get access to perks:
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2024-06-211h 37Turfgrass EpistemologyS2 E56 Fertilizer Ratios and Multi-Nutrient Raw Materials.Join Turfgrass Epistemology to get access to perks:
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2024-06-181h 12Turfgrass EpistemologyS2 E55 Fertilizer Production, Ordering, and Formulation for TurfgrassJoin Turfgrass Epistemology to get access to perks:
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2024-06-141h 11Turfgrass EpistemologyS2 E54 Dr. Gregg Munshaw - What is Bluemuda?Join Turfgrass Epistemology to get access to perks:
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2024-06-111h 52Turfgrass EpistemologyS2 E53 Fertilizer Raw Materials for TurfgrassJoin Turfgrass Epistemology to get access to perks:
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2024-06-071h 39Turfgrass EpistemologyS2 E52 Yes, I am.Join Turfgrass Epistemology to get access to perks:
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2024-05-301h 00Turfgrass EpistemologyS2 E51 Bias Against Disconfirmatory EvidenceWoodward TS, Buchy L, Moritz S, Liotti M. A bias against disconfirmatory evidence is associated with delusion proneness in a nonclinical sample. Schizophr Bull. 2007 Jul;33(4):1023-8. doi: 10.1093/schbul/sbm013. Epub 2007 Mar 8. PMID: 17347526; PMCID: PMC2632321.
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2024-05-241h 08Turfgrass EpistemologyS2 E50 Depression and Pesticide ExposureBeseler CL, Stallones L, Hoppin JA, Alavanja MC, Blair A, Keefe T, Kamel F. Depression and pesticide exposures among private pesticide applicators enrolled in the Agricultural Health Study. Environ Health Perspect. 2008 Dec;116(12):1713-9. doi: 10.1289/ehp.11091. Epub 2008 Sep 9. PMID: 19079725; PMCID: PMC2599768.
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2024-05-2152 minTurfgrass EpistemologyS2 E49 The Dunning-Kruger EffectKruger J, Dunning D. Unskilled and unaware of it: how difficulties in recognizing one's own incompetence lead to inflated self-assessments. J Pers Soc Psychol. 1999 Dec;77(6):1121-34. doi: 10.1037//0022-3514.77.6.1121. PMID: 10626367.
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2024-05-171h 21Turfgrass EpistemologyS2 E48 Repeated Statements and Illusory TruthHasher, L., Goldstein, D., & Toppino, T. (1977). Frequency and the conference of referential validity. Journal of Verbal Learning & Verbal Behavior, 16(1), 107–112. https://doi.org/10.1016/S0022-5371(77)80012-1
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2024-05-1449 minTurfgrass EpistemologyS2 E47 Mental Health Barriers in the U.S.Mojtabai R, Olfson M, Sampson NA, Jin R, Druss B, Wang PS, Wells KB, Pincus HA, Kessler RC. Barriers to mental health treatment: results from the National Comorbidity Survey Replication. Psychol Med. 2011 Aug;41(8):1751-61. doi: 10.1017/S0033291710002291. Epub 2010 Dec 7. PMID: 21134315; PMCID: PMC3128692.
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2024-05-101h 10Turfgrass EpistemologyS2 E46 Barriers to Mental Health WorldwideAndrade LH, Alonso J, Mneimneh Z, Wells JE, Al-Hamzawi A, Borges G, Bromet E, Bruffaerts R, de Girolamo G, de Graaf R, Florescu S, Gureje O, Hinkov HR, Hu C, Huang Y, Hwang I, Jin R, Karam EG, Kovess-Masfety V, Levinson D, Matschinger H, O'Neill S, Posada-Villa J, Sagar R, Sampson NA, Sasu C, Stein DJ, Takeshima T, Viana MC, Xavier M, Kessler RC. Barriers to mental health treatment: results from the WHO World Mental Health surveys. Psychol Med. 2014 Apr;44(6):1303-17. doi: 10.1017/S0033291713001943. Epub 2013 Aug 9. PMID: 23931656; PMCID: PMC4100460.
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2024-05-071h 04Turfgrass EpistemologyS2 E45 What Motivates You and Your Employees?Maslow, A. H. (1943). A theory of human motivation. Psychological Review, 50(4), 370–396. https://doi.org/10.1037/h0054346
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2024-05-031h 22Turfgrass EpistemologyS2 E44 Topdressing Salt-Affected Fairways Using HumusZhu, H., & Li, D. (2018). Using Humus on Golf Course Fairways to Alleviate Soil Salinity Problems. HortTechnology hortte, 28(3), 284-288. Retrieved Apr 28, 2024, from https://doi.org/10.21273/HORTTECH03989-18
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2024-04-301h 18Turfgrass EpistemologyS2 E43 Humic-Coated Urea on Kentucky BluegrassLindsey, A. J., Thoms, A. W., McDaniel, M. D., & Christians, N. E. Plant-available soil nitrogen fluxes and turfgrass quality of Kentucky bluegrass fertilized with humic substances. Crop Science. 2021; 61: 4416–4424. https://doi.org/10.1002/csc2.20592
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2024-04-261h 25Turfgrass EpistemologyS2 E42 Dr. Ervin - Seaweed and Humic Acid Influence Bentgrass Drought ResistanceZhang, X. and Ervin, E.H. (2004), Cytokinin-Containing Seaweed and Humic Acid Extracts Associated with Creeping Bentgrass Leaf Cytokinins and Drought Resistance. Crop Science, 44: 1737-1745. https://doi.org/10.2135/cropsci2004.1737
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2024-04-251h 07Turfgrass EpistemologyS2 E41 Bermudagrass Response to Microbial Inoculants.Bolton, C., Cabrera, M. L., Habteselassie, M., Poston, D., & Henry, G. M. (2022). The impact of commercially available microbial inoculants on bermudagrass establishment, aesthetics, and function. Crop, Forage & Turfgrass Management, 8, e20190. https://doi.org/10.1002/cft2.20190
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2024-04-2351 minTurfgrass EpistemologyS2 E40 Humic-coated Urea ≠ Better TurfgrassLindsey AJ, Thoms AW, McDaniel MD, Christians NE. Evaluation of humic fertilizers on a sand-based creeping bentgrass putting green. Crop Science. 2021; 61: 3734–3745. https://doi.org/10.1002/csc2.20577
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2024-04-221h 17Turfgrass EpistemologyS2 E39 Late-Season Biostimulant Effects on BermudagrassMunshaw, G.C., Ervin, E.H., Shang, C., Askew, S.D., Zhang, X. and Lemus, R.W. (2006), Influence of Late-Season Iron, Nitrogen, and Seaweed Extract on Fall Color Retention and Cold Tolerance of Four Bermudagrass Cultivars. Crop Science, 46: 273-283. https://doi.org/10.2135/cropsci2005.0078
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2024-04-161h 11Turfgrass EpistemologyS2 E38 Biostimulant effects on creeping bentgrass.Ervin, E.H., Zhang, X., Goatley, J.M., Jr., & Askew, S.D. (2004). Trinexapac-ethyl, Propiconazole, Iron, and Biostimulant Effects on Shaded Creeping Bentgrass. HortTechnology horttech, 14(4), 500-506. Retrieved Apr 8, 2024, from https://doi.org/10.21273/HORTTECH.14.4.0500
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2024-04-121h 20Turfgrass EpistemologyS2 E37 Will Applied Potassium Protect Turfgrass from Winter Injury?Schmid, C.J., Murphy, J.A., Clarke, B.B., DaCosta, M. and Ebdon, J.S. (2016), Observations on the Effect of Potassium on Winter Injury of Annual Bluegrass in New Jersey in 2015. Crop, Forage & Turfgrass Management, 2: 1-4 cftm2015.0170. https://doi.org/10.2134/cftm2015.0170
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2024-04-051h 55Turfgrass EpistemologyS2 E36 Bermudagrass Response to Applied Potassium.Sartain, J.B. (2002), Tifway Bermudagrass Response To Potassium Fertilization. Crop Sci., 42: 507-512. https://doi.org/10.2135/cropsci2002.5070
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2024-03-281h 03Turfgrass EpistemologyS2 E35 Can potassium enhance turfgrass shade tolerance?Cai, X., Trenholm, L. E., Kruse, J., & Sartain, J. B. (2011). Response of ‘Captiva’ St. Augustinegrass to Shade and Potassium. HortScience horts, 46(10), 1400-1403. Retrieved Mar 26, 2024, from https://doi.org/10.21273/HORTSCI.46.10.1400
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2024-03-271h 14Turfgrass EpistemologyS2 E34 Nitrogen to Potassium Ratios for Bermudagrass.Snyder, G.H. and Cisar, J.L. (2000), Nitrogen/Potassium Fertilization Ratios for Bermudagrass Turf. Crop Sci., 40: 1719-1723. https://doi.org/10.2135/cropsci2000.4061719x
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2024-03-261h 03Turfgrass EpistemologyS2 E33 Will Potassium Increase or Decrease Anthracnose on Poa Annua?Schmid, C.J., Clarke, B.B. and Murphy, J.A. (2018), Potassium Nutrition Affects Anthracnose on Annual Bluegrass. Agronomy Journal, 110: 2171-2179. https://doi.org/10.2134/agronj2018.03.0147
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2024-03-221h 17Turfgrass EpistemologyS2 E32 Centipedegrass Decline and Recovery Using N, P, and K.Johnson, B.J., Carrow, R.N. and Burns, R.E. (1988), Centipedegrass Decline and Recovery as Affected by Fertilizer and Cultural Treatments. Agron. J., 80: 479-486. https://doi.org/10.2134/agronj1988.00021962008000030018x
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2024-03-211h 14Turfgrass EpistemologyS2 E31 Dr. Woods - Potassium for Putting Green Turfgrass.Woods, M.S., Ketterings, Q.M., Rossi, F.S. and Petrovic, A.M. (2006), Potassium Availability Indices and Turfgrass Performance in a Calcareous Sand Putting Green. Crop Science, 46: 381-389. https://doi.org/10.2135/cropsci2005.0218
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2024-03-201h 22Turfgrass EpistemologyS2 E30 Turfgrass Potassium. Soils Matter!Dest, W.M and K. Guillard. 2001. Bentgrass response to K fertilization and K release rates from eight sand rootzone sources used in putting green construction. Int. Turf. Soc. Res. J. 9:375-381.
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2024-03-191h 09Turfgrass EpistemologyS2 E29 Potassium Can Increase Disease on TurfgrassBier, P.V., Persche, M., Koch, P. et al. A long term evaluation of differential potassium fertilization of a creeping bentgrass putting green. Plant Soil 431, 303–316 (2018). https://doi.org/10.1007/s11104-018-3765-8
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2024-03-161h 31Turfgrass EpistemologyS2 E28 Remove or Return Turfgrass Clippings?Sartain, J.B. (1993), Interrelationships among Turfgrasses, Clipping Recycling, Thatch, and Applied Calcium, Magnesium, and Potassium. Agron. J., 85: 40-43. https://doi.org/10.2134/agronj1993.00021962008500010008x
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2024-03-141h 08Turfgrass EpistemologyS2 E27 Potassium source and rate effect on creeping bentgrassWaddington, 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, Agrostis palustris Huds. Agron. J., 64: 562-566. https://doi.org/10.2134/agronj1972.00021962006400050002x
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2024-03-131h 03Turfgrass EpistemologyS2 E26 Potassium and Phosphorus on Creeping Bentgrass Putting GreensJohnson, 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/agronj2003.6970
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2024-03-121h 21Turfgrass EpistemologyS2 E25 Potassium is Stress-full.Live Show:
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2024-03-081h 27Turfgrass EpistemologyS2 E24 Long-Term Influence of N and K on Perennial Ryegrass TurfEbdon, 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/cropsci2012.06.0395
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2024-03-071h 27Turfgrass EpistemologyS2 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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2024-03-051h 21Turfgrass EpistemologyS2 E22 Dr. Richardson - Turfgrass Uptake of Foliar UreaStiegler, 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/cropsci2010.06.0377
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2024-03-011h 09Turfgrass EpistemologyS2 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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2024-02-291h 05Turfgrass EpistemologyS2 E20 Type of Granular Urea Influences Nitrogen Volatilization from TurfgrassVolk, 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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2024-02-291h 06Turfgrass EpistemologyS2 E19 Kentucky Bluegrass Managed with Sprayable Nitrogen ProgramsMoore, 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/cropsci1996.0011183X003600050037x
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2024-02-281h 06Turfgrass EpistemologyS2 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/HORTSCI.22.1.84
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2024-02-271h 15Turfgrass EpistemologyS2 E17 February 2024 Comments and VoicemailLive calls and voice mail: 859-444-4234
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2024-02-221h 45Turfgrass EpistemologyS2 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 cropsci1992.0011183X003200060018x. https://doi.org/10.2135/cropsci1992.0011183X003200060018x
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2024-02-2237 minTurfgrass EpistemologyS2 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.
https://doi.org/10.2136/sssaj1991.03615995005500020039x
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2024-02-211h 02Turfgrass EpistemologyS2 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). https://doi.org/10.1007/s00374-012-0696-z
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2024-02-151h 05Turfgrass EpistemologyS2 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/agronj1986.00021962007800050012x
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2024-02-141h 05Turfgrass EpistemologyS2 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/agronj1986.00021962007800060014x
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2024-02-131h 38Turfgrass EpistemologyS2 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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2024-02-081h 03Turfgrass EpistemologyS2 E10 Nitrogen Fertilizer PricingShaddox, T. W., & Unruh, J. B. (2021). Determining Nitrogen Fertilizer Cost Using Turfgrass Response. HortTechnology. 31(4), 470-478.
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2024-02-081h 38Turfgrass EpistemologyS2 E9 Turfgrass Response to Various Nitrogen SourcesLandschoot, 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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2024-02-071h 38Turfgrass EpistemologyS2 E8 Turfgrass Response to Slow Release Nitrogen FertilizerCarrow, R.N. (1997), Turfgrass Response to Slow-Release Nitrogen Fertilizers. Agron. J., 89: 491-496.
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2024-02-061h 39Turfgrass EpistemologyS2 E7 Dr. Glen Obear - Iron Cementing Layers in Golf Putting Greens.Glen R. Obear, Alfred E. Hartemink, Douglas J. Soldat. 2014. Soils with iron-cemented layers on golf courses in the USA,
Geoderma 232–234:198-207.
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2024-02-041h 16Turfgrass EpistemologyS2 E6 The soil pH diagram - soil mineralogical and chemical issues.Barrow, N.J., Hartemink, A.E. The effects of pH on nutrient availability depend on both soils and plants. Plant Soil 487, 21–37 (2023).
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2024-01-201h 52Turfgrass EpistemologyS2 E5 The soil pH diagram. A review.Hartemink, A.E., Barrow, N.J. Soil pH - nutrient relationships: the diagram. Plant Soil 486, 209–215 (2023).
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2024-01-111h 06Turfgrass EpistemologyS2 E4 Iron source effect on bentgrass.Glinski, D.S., Carrow, R.N. and Karnok, K.J. (1992), Iron Fertilization Effects on Shoot/Root Growth, Water Use, and Drought Stress of Creeping Bentgrass. Agron. J., 84: 496-503.
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2024-01-111h 24Turfgrass EpistemologyS2 E3 Iron applied with elemental sulfur.Ryan C. Christensen , Bryan G. Hopkins hopkins@byu.edu , Von D. Jolley , Kelly M. Olson , Christopher M. Haskell , Nicholas J. Chariton & Bruce L. Webb (2012) ELEMENTAL SULFUR IMPREGNATED WITH IRON AS A FERTILIZER SOURCE FOR KENTUCKY BLUEGRASS, Journal of Plant Nutrition, 35:12, 1878-1895.
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2024-01-101h 16Turfgrass EpistemologyS2 E2 Granular vs. foliar Fe, Mn, and Mg fertilizers for turfgrassShaddox TW, Unruh JB, Restuccia NG. St. Augustinegrass quality and nutrient content in response to granular and foliar iron, manganese, and magnesium. Crop Science. 2020;60:3314–3327.
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2024-01-091h 30Turfgrass EpistemologyS2 E1 How long does iron fertilizer remain soluble in soil?Shaddox, T.W., Fu, H., Gardner, D.S., Goss, R.M., Guertal, E.A., Kreuser, W.C., Miller, G.L., Stewart, B.R., Tang, K. and Unruh, J.B. (2019), Solubility of Ten Iron Fertilizers in Eleven North American Soils. Agronomy Journal, 111: 1498-1505.
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2024-01-051h 25Turfgrass EpistemologyS1 E62 Live calls and comments!I discuss a thatch video claiming to reducing thatch by applying natural organic products, address two comments from an iron video, and talk to callers about iron, soil tests, etc.
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2023-12-291h 42Turfgrass EpistemologyS1 E61 Comments and emails!Live calls: 859-444-4234
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2023-12-211h 37Turfgrass EpistemologyS1 E60 Foliar iron can increase turfgrass growth.Cooper, R.J., & Spokas, L.A. 1991. Growth, Quality, and Foliar Iron Concentration of Kentucky Bluegrass Treated with Chelated Iron Sources. Journal of the American Society for Horticultural Science. 116(5), 798-801.
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2023-12-201h 24Turfgrass EpistemologyS1 E59 Granular vs. foliar iron applied to severely Fe-deficient Kentucky BluegrassD.D. Minner and J.D. Butler. 1984. Correcting Iron Deficiency of Kentucky Bluegrass. HortScience. 19:109-110.
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2023-12-191h 07Turfgrass EpistemologyS1 E58 Chelated iron vs. iron sulfate on Kentucky BluegrassYust, A.K., Wehner, D.J. and Fermanian, T.W. (1984), Foliar Application of N and Fe to Kentucky Bluegrass1. Agron. J., 76: 934-938.
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2023-12-151h 05Turfgrass EpistemologyS1 E57 Chelated iron + nitrogen ≠ ’double dark’ turfgrass.Carrow, R.N., Johnson, B.J. and Landry, G.W., Jr. (1988), Centipedegrass Response to Foliar Application of Iron and Nitrogen. Agron. J., 80: 746-750.
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2023-12-151h 30Turfgrass EpistemologyS1 E56 Iron and Manganese and Boron, Oh My!Deal, E.E. and Engel, R.E. 1965. Iron, Manganese, Boron and Zinc: Effects on Growth of Merion Kentucky Bluegrass. Agron. J., 57: 553-555.
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2023-12-141h 13Turfgrass EpistemologyS1 E55 Iron for TurfgrassesAn introduction to iron for turfgrasses.
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2023-12-131h 24Turfgrass EpistemologyS1 E54 Mowing height, nitrogen, and biostimulants effect on bermudagrass thatch.Brian J. Tucker, Lambert B. McCarty, Haibo Liu, and Christina E. Wells. 2006. Mowing Height, Nitrogen Rate, and Biostimulant Infuence Root Development of Field-grown TifEagle Bermudagrass. HortScience 41:805-807.
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2023-12-091h 01Turfgrass EpistemologyS1 E53 Biological thatch control in zoysiagrass putting greens.Josh R.Weaver, Lambert B. McCarty, Virgil L. Quisenberry, L. Ray Hubbard Jr., William G. Bridges, Philip J. Brown. 2022. Evaluating biological thatch control on Zoysia matrella (L.) Merr. golf greens. Int Turfgrass Soc Res J. 14:480–486.
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2023-12-081h 28Turfgrass EpistemologyS1 E52 Bacteria and cellulase for thatch control does not work, even in Norway.Tatsiana Espevig, Bjørn Molteberg, Anne Marte Tronsmo, Arne Tronsmo, and Trygve S. Aamlid. 2012. Thatch Control in Newly Established Velvet Bentgrass Putting Greens in Scandinavia. Crop Sci. 52:371–382.
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2023-12-061h 07Turfgrass EpistemologyS1 E51 Cultural and biological control of bentgrass thatchLambert B. McCarty, Matthew F. Gregg, and Joe E. Toler. 2007. Thatch and Mat Management in an Established Creeping Bentgrass Golf Green. Agron. J. 99:1530–1537.
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2023-12-061h 08Turfgrass EpistemologyS1 50 Dr. Sudeep Sidhu - What is lignin and why is it so resistant to decomposition?Sudeep Sidhu, Qingguo Jack Huang, Robert N. Carrow, David Jesperson, Jiayang Liu, Paul L. Raymer. 2022. A review of a novel enzyme system for the management of thatch and soil water repellency in turfgrass. Int Turfgrass Soc Res J. 14:450–461.
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2023-12-011h 02Turfgrass EpistemologyS1 E49 Dr. Paul Raymer - Biodethatching in Bermudagrass and Zoysiagrass.Sudeep S. Sidhu, Qingguo Huang, Robert N. Carrow, and Paul L. Raymer. 2013. Efficacy of Fungal Laccase to Facilitate Biodethatching in Bermudagrass and Zoysiagrass. Agron. J. 105:1247–1252.
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2023-12-011h 15Turfgrass EpistemologyS1 E48 Does fertility and cultivation influence thatch on a bermudagrass home lawn?R.N. Carrow, B. J. Johnson, and R. E. Burns. 1987. Thatch and Quality of Tifway Bermudagrass Turf in Relation to Fertility and Cultivation. Agron. J. 79:524-530.
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2023-12-011h 13Turfgrass EpistemologyS1 E47 Biological and cultural thatch management on newly seeded bentgrass putting greens.Lambert B. McCarty, Matthew F. Gregg, Joe E. Toler, James J. Camberato, and Hoke S. Hill. 2005. Minimizing Thatch and Mat Development in a Newly Seeded Creeping Bentgrass Golf Green. Crop Sci. 45:1529–1535.
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2023-12-011h 10Turfgrass EpistemologyS1 E46 White-rot Fungi Reduces Lignin of Four TurfgrassesSartain, J.B. and B.G. Volk. 1984. Influence of Selected White-Rot Fungi and Topdressings on the Composition of Thatch Components of Four Turfgrasses. Agron. J. 76:359-362.
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2023-11-221h 05Turfgrass EpistemologyS1 E45 Bugs in a jug.Murdoch, C.L. and J.P. Barr. 1976. Ineffectiveness of Commercial Microorganism Inoculum in Breaking Down Thatch in Common Bermudagrass in Hawaii. HortScience 11:488-489.
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2023-11-211h 05Turfgrass EpistemologyS1 E44 Thatch accumulation following Milorganite, Lime, Verticutting, and Aerification.Murray, J.J. and F.V. Juska. 1977. Effect of Management Practices on Thatch Accumulation, Turf Quality, and Leaf Spot Damage in Common Kentucky Bluegrass. Agron. J. 69:365-369.
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2023-11-201h 16Turfgrass EpistemologyS1 E43 Thatch management in a bottle. Is this possible?Sidhu, S.S, Q. Huang, R.N. Carrow, and P.L. Raymer. 2012. Use of Fungal Laccases to Facilitate Biodethatching: A New Approach. HortScience 47:1536–1542
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2023-11-201h 13Turfgrass EpistemologyS1 E42 Dr. Lee Berndt - Do bio-organic materials hasten thatch decay?Berndt, W.L., P.E. Rieke, and J.M. Vargas, Jr. 1990. Kentucky Bluegrass Thatch Characteristics Following Application of Bio-organic Materials. HortScience 25(4):412-414.
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2023-11-201h 28Turfgrass EpistemologyS1 E41 Does Thatch Influence Water Infiltration?Taylor, D.H. and G.R. Blake. 1982. The Effect of Turfgrass Thatch on Water Infiltration Rates. Soil Sci . Soc . Am. J. 46:616-619.
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2023-11-2049 minTurfgrass EpistemologyS1 E40 Can You Control Thatch Using Aerification and Ammonium Sulfate?Smith, G.S. 1979. Nitrogen and Aerification Influence on Putting Green Thatch and Soil.
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2023-11-201h 19Turfgrass EpistemologyS1 E39 The Most Accurate Method of Measuring Zoysiagrass ThatchShaddox T.W. and J.B. Unruh. 2019. Correlating Methods of Measuring Zoysiagrass Thatch. Crop Sci. 59:792–799.
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2023-11-201h 06Turfgrass EpistemologyS1 E38 The Nature of Turfgrass ThatchLedeboer, F. B. and C. R. Skogley. 1967. Investigations Into the Nature of Thatch and Methods for its Decomposition.
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2023-11-2044 minTurfgrass EpistemologyS1 E37 Logical Fallacies - Ad hominemAd hominem fallacy occurs when you attempt to refute an argument by attacking the person. Ridicule has its place and can be useful in some situations. But, ridicule rarely leads to the person recognizing their flaw or changing their behavior.
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2023-11-2033 minTurfgrass EpistemologyS1 E36 Organic vs. synthetic fertilizer in Canada. Which is better?Nelson, S. H. 1980. Summer color and fall color retention of Kentucky bluegrass receiving varying amounts and timing of inorganic and inorganic-organic combinations of nitrogen. Can. J. Plant Sci. 60: 1015-1021.
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2023-11-201h 42Turfgrass EpistemologyS1 E35 Does timing of fall-applied nitrogen differ in Italy?Grossi, N., F. Lulli, M. Volterrani, and S. Miele. 2005. Timing of fall nitrogen application on tall fescue turf.
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2023-11-1959 minTurfgrass EpistemologyS1 E34 Dr. Cale Bigelow - Turfgrass response to various nitrogen programs in Indiana.Walker, K. S., C. A. Bigelow, D. R. Smith, G. E. Van Scoyoc, and Z. J. Reicher. 2007. Aboveground Responses of Cool-Season Lawn Species to Nitrogen Rates and Application Timings
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2023-11-191h 28Turfgrass EpistemologyS1 E33 Is polymer and sulfur-coated urea any better on Kentucky bluegrass than just urea?Bigelow, C. A., K. S. Walker, and G. A. Hardebeck. 2007. Single Fall Applications of Coated Urea Fertilizers Produce a High Quality Kentucky Bluegrass Turf
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2023-11-191h 20Turfgrass EpistemologyS1 E32 You don’t get roots, and you don’t get roots! No one gets roots!Moore, R. W., N. E. Christians, and M. L. Agnew. 1996. Response of Three Kentucky Bluegrass Cultivars to Sprayable Nitrogen Fertilizer Programs.
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2023-11-191h 30Turfgrass EpistemologyS1 E31 Nitrogen uptake differs even within cultivars of the same species.Liu, H. and R. J. Hull. 2006. Comparing cultivars of three cool-season turfgrasses for nitrogen recovery in clippings.
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2023-11-1957 minTurfgrass EpistemologyS1 E30 What happens to nitrogen applied to turfgrass in late fall?Mangiafico, S. S. and K. Guillard. 2006. Fall Fertilization Timing Effects on Nitrate Leaching and Turfgrass Color and Growth.
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2023-11-191h 19Turfgrass EpistemologyS1 E29 Late Fall Soluble vs. Slow-release Nitrogen on Kentucky Bluegrass ColorWehner, D J., J. E. Haley, and D. L. Martin. 1988. Late Fall Fertilization of Kentucky Bluegrass.
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2023-11-191h 04Turfgrass EpistemologyS1 E28 What to expect from cool-season turfgrasses if temperatures drop fast.Rajashekar, C., D. Tao, and P. H. Li. 1983. Freezing Resistance and Cold Acclimation in Turfgrasses.
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2023-11-1945 min
The Talking GreenkeeperTravis Shaddox PhDTravis Shaddox PhD is an assistant professor at the Univerisity of Kentucky where he focuses on soil fertiltiy and turfgrass nutrition. Travis recently participated in publishing a a paper titled, "Nutrient Use and Management Practices on United States Golf Courses". To learn more about this piece please visit: https://journals.ashs.org/horttech/view/journals/horttech/33/1/article-p79.xml Thanks to our sponsors: https://www.rightlineusa.com https://www.greenkeeperapp.com/marketing/ Email questions and inquires to: thetalkinggreenkeeper@gmail.com
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