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Volume 4 Issue 1, May 2018



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  • ANNOUNCEMENTS up

  • APPLIED TURFGRASS SCIENCE up

    • Miyuan Xiao, Kevin W. Frank and Thomas A. Nikolai
      Foliar and Granular Fertilizer Effects on Creeping Bentgrass and Soil Nutrient Levels
      Core Ideas
      • Foliar fertilizer treatments did not deplete soil nutrient levels after three years of applications.
      • Combining foliar and granular fertilizers resulted in the best turfgrass quality.
      • Biweekly application of foliar fertilizers resulted in higher turf quality than monthly granular fertilizer applications.
      doi:10.2134/cftm2017.05.0039
      Crop, Forage and Turfgrass Management 2018 4:170539
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  • APPLIED TURFGRASS SCIENCE—BRIEFS up

    • Luqi Li, Matthew Sousek, Roch Gaussoin and Zachary Reicher
      Buffalograss Exhibits Adequate Turf Tolerance to Postemergence Herbicides Applied During or Shortly After Greenup
      Core Ideas
      • Many postemergence herbicides can be safely applied during buffalograss greenup in early to mid-April (0% greenup) with little chance of turf damage.
      • Herbicide that does not contain 2,4-D can be safely applied during buffalograss greenup until 1 June (70-85% greenup).
      • Herbicide containing 2,4-D should be applied before the first week of May (10-15% greenup) for turf safety concerns, or apply no later than third week of May (50-60% greenup) for acceptable stand during the summer months.
      doi:10.2134/cftm2017.09.0064
      Crop, Forage and Turfgrass Management 2018 4:170064
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    • Cole S. Thompson, Ross C. Braun, Jared A. Hoyle and Benjamin Van Ryzin
      Mowing Timing Does Not Affect the Efficacy of Broadleaf Herbicides Applied to Control Dandelion ( Taraxacum officinale )
      Core Ideas
      • More information is needed to precisely define mowing restriction recommendations for systemic broadleaf herbicides.
      • Sufficient leaf tissue remained after mowing to allow for herbicide absorption, translocation, and subsequent control of dandelion.
      • Mowing 4 days before to 4 days after herbicide treatment did not impact herbicide efficacy.
      doi:10.2134/cftm2017.10.0074
      Crop, Forage and Turfgrass Management 2018 4:170074
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    • Aaron J. Patton, Daniel V. Weisenberger and James M. Breuninger
      A Growing Degree Day Model is Effective to Schedule Spring Defendor (Florasulam) Applications for Suppressing Dandelion Flowers
      Core Ideas
      • Early spring Defendor (florasulam) applications effectively inhibit dandelion blooming.
      • Apply Defendor prior to 75 accumulated growing degree days (base = 50°F) to suppress dandelion blooms.
      • Defendor application timing is weeks earlier than traditional phenoxy herbicides.
      doi:10.2134/cftm2017.12.0088
      Crop, Forage and Turfgrass Management 2018 4:170088
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  • CROP MANAGEMENT up

    • T.C. Adams, K.R. Brye, L.C. Purcell, W.J. Ross, E.E. Gbur and M.C. Savin
      Physiological Plant Response Differences among High- and Average-Yield Soybean Areas in Arkansas
      Core Ideas
      • Crop yield contests provide a unique research opportunity.
      • Planting date is highly related to yield across yield contest sites.
      • An early soybean production system is advantageous for high yields.
      doi:10.2134/cftm2017.07.0047
      Crop, Forage and Turfgrass Management 2018 4:170047
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    • Amitava Chatterjee
      Spring Wheat Response to Supplemental Nutrient Additions under Silty Clay Loam Soils of Minnesota
      Core Ideas
      • Spring wheat did not respond to additional nutrients beside recommended nitrogen.
      • Seed inoculation with Trichoderma spp. did not impact yield or protein.
      • Additional P, Cu, Zn, and S did not change grain protein.
      doi:10.2134/cftm2017.05.0033
      Crop, Forage and Turfgrass Management 2018 4:170033
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    • Sin Joe Ng, Laura E. Lindsey, Andrew P. Michel and Anne E. Dorrance
      Effect of Mid-Season Foliar Fungicide and Foliar Insecticide Applied Alone and In-Combination on Soybean Yield
      Core Ideas
      • Soybeans treated with fungicide + insecticide tank-mixed yielded the same as fungicide only in the absence of insects and defoliation at the economic threshold.
      • Fungicide increased yield at 4 of 12 site-years, where leaf area affected by diseases tended to be > 6.5%.
      • There was no yield response with insecticide due to low defoliation at the time of application.
      doi:10.2134/cftm2017.09.0067
      Crop, Forage and Turfgrass Management 2018 4:170067
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  • APPLIED TURFGRASS SCIENCE—BRIEFS up

    • Jared A. Hoyle, Ross C. Braun, Jacob A. Reeves, Steven J. Keeley and Dale J. Bremer
      Mowing Height and Cultivation Effects on Tall Fescue Conversion to Buffalograss
      Core Ideas
      • Turf managers may be hesitant to embrace buffalograss due to its slow germination and establishment rate.
      • Lowering the mowing height will have minimal impact on buffalograss establishment.
      • Slit seeding resulted in the quickest conversion from tall fescue to buffalograss.
      • If slit seeding is not possible, core aerating or verticutting will hasten buffalograss establishment compared with not cultivating at all.
      doi:10.2134/cftm2017.08.0061
      Crop, Forage and Turfgrass Management 2018 4:170061
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  • CROP MANAGEMENT—BRIEFS up

    • Katherine S. Rod, Carrie A. Knott, Kathleen Russell and Chad D. Lee
      Bradyrhizobium japonicum Inoculants Have Little Effect in Kentucky’s Soybean-Corn Rotation
      Core Ideas
      • Bradyrhizobium japonicum soybean inoculants did not increase seed yield and number of root nodules.
      • Differences were detected for higher leaf N concentration in the R6 growth stage, but this did not result in increased seed yield.
      • Increasing the rate of B. japonicum soybean inoculants did not increase the seed yield nor the number of root nodules.
      doi:10.2134/cftm2017.10.0072
      Crop, Forage and Turfgrass Management 2018 4:170072
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  • CROP MANAGEMENT up

    • Zachary P. Eder, Sukhbir Singh, Daniel Fromme, Guy Collins, Fred Bourland and Gaylon Morgan
      Impact of Cotton Leaf and Bract Characteristics on Cotton Leaf Grade
      Core Ideas
      • Cultivars with higher trichome densities resulted in higher leaf grade values.
      • Leaf area and bract length had no relation with leaf grading.
      • Industry leaf hairiness ratings are not consistent with observed leaf hairiness ratings.
      doi:10.2134/cftm2017.07.0048
      Crop, Forage and Turfgrass Management 2018 4:170048
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  • FORAGE & GRAZINGLANDS up

    • Clenton E. Owensby and Lisa M. Auen
      Steer and Pasture Productivity Influenced by Intensive Early Stocking plus Late Season Grazing
      Core Ideas
      • Preconditioning rangelands by heavy early grazing increases stocking rate.
      • Rotation of Intensive Early Stocking + Late-Season Grazing with Intensive Early Stocking over two years sustains AGB.
      • A 2-year rotation of Intensive Early Stocking + Late-Season Grazing and Intensive Early Stocking increases net returns.
      doi:10.2134/cftm2017.02.0011
      Crop, Forage and Turfgrass Management 2018 4:170011
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  • CROP MANAGEMENT—BRIEFS up

    • David L. Jordan and Alan C. York
      Weed Species Richness and Density following Repeated Use of Glyphosate in Four Fields in North Carolina
      Core Ideas
      • Long-term use of glyphosate can reduce weed species richness.
      • Long-term use of glyphosate can select for resistant biotypes.
      • Impact of continuous use of glyphosate depends on weed species.
      doi:10.2134/cftm2017.12.0089
      Crop, Forage and Turfgrass Management 2018 4:170089
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  • FORAGE & GRAZINGLANDS up

    • Kenton L. Sena, Ben Goff, David Davis and S. Ray Smith
      Switchgrass Growth and Forage Quality Trends Provide Insight for Management
      Core Ideas
      • Switchgrass forage quality declines predictably throughout season.
      • Switchgrass biomass accumulates predictably during the season.
      • Seasonal biomass and forage quality patterns may permit flexible management.
      doi:10.2134/cftm2017.08.0053
      Crop, Forage and Turfgrass Management 2018 4:170053
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    • Krishna B. Bhandari, C.P. West, S.D. Longing, C.P. Brown and P.E. Green
      Comparison of Arthropod Communities among Different Forage Types on the Texas High Plains using Pitfall Traps
      Core Ideas
      • Red imported fire ants and harvester ants account for most of the arthropods found.
      • Forage types did not differ in numbers of non-pest and beneficial insects.
      • Old World bluestem provided an unfavorable habitat for ants but not desirable insects.
      • Deterrence towards deleterious ants promotes resilience of Old World bluestem
      doi:10.2134/cftm2018.01.0005
      Crop, Forage and Turfgrass Management 2018 4:180005
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  • DIAGNOSTIC GUIDES up

    • Josh B. Henry, Matthew Vann, Ingram McCall, Paul Cockson and Brian E. Whipker
      Nutrient Disorders of Burley and Flue-Cured Tobacco: Part 1—Macronutrient Deficiencies
      Core Ideas
      • Recognizing macronutrient disorders is important for commercial production.
      • Foliar nutrient concentrations were identified for burley and flue-cured tobacco.
      • Symptoms and critical values were compared with published results.
      doi:10.2134/cftm2017.11.0076
      Crop, Forage and Turfgrass Management 2018 4:170076
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    • Josh B. Henry, Matthew Vann, Ingram McCall, Paul Cockson and Brian E. Whipker
      Nutrient Disorders of Burley and Flue-Cured Tobacco: Part 2—Micronutrient Disorders
      Core Ideas
      • Recognizing micronutrient disorders is important for commercial production.
      • Unique, previously unobserved nutrient disorder symptoms were observed.
      • Foliar nutrient concentrations were identified for burley and flue-cured tobacco.
      • Symptoms and critical values were compared with published results.
      doi:10.2134/cftm2017.11.0077
      Crop, Forage and Turfgrass Management 2018 4:170077
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  • ERRATUM up

    • J. T. Brosnan, G. K. Breeden, M. T. Elmore and J. M. Zidek
      Erratum: Early and Late Postemergence Control of Dallisgrass in Tall Fescue
      doi:10.2134/cftm2018.03.1202
      Crop, Forage and Turfgrass Management 2018 4:181202
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    • Daniel W. Sweeney and Joseph L. Moyer
      Erratum: Nitrogen Management for Seed Production from Endophyte-Free Tall Fescue Grown on Claypan Soil
      doi:10.2134/cftm2017.04.0027er
      Crop, Forage and Turfgrass Management 2018 4:170027er
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