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Creeping Bentgrass Fairway Wear Resistance by Granular Topdressing of Ca/Mg-rich Liming Agents

Author

Listed:
  • Derek T. Pruyne

    (Center for Turfgrass Science, Penn State University, University Park, PA 16802, USA)

  • Maxim J. Schlossberg

    (Center for Turfgrass Science, Penn State University, University Park, PA 16802, USA)

  • Wakar Uddin

    (Department of Plant Pathology & Environmental Microbiology, Penn State University, University Park, PA 16802, USA)

Abstract

Depletion of extractable silicon (Si) from surface soil depths has been observed in managed production systems. While not characterized as a plant essential nutrient, Si accrues in epidermal and vascular tissue of monocotyledonous plants. A field evaluation of granular Ca/Mg-rich liming agents was initiated on a creeping bentgrass ( Agrostis stolonifera L. cv. Declaration) fairway in 2010. Excluding the control, treatments comprised 2440 kg (ha year) −1 topdressing of calcitic/dolomitic blended limestone or Ca/Mg-SiO 3 in semi-annual or more frequent “split” applications. Each week of the 2011 and 2012 growing seasons, a dedicated wear simulator trafficked the fairway plots. Measures of canopy quality, clipping yield, tissue composition, soil pH, and plant-available soil Si levels were collected frequently. The described Ca/Mg-SiO 3 annual topdressing rates correlated with acetic acid extractable Si levels >30 mg kg −1 in the 0- to 5-cm soil depth. Neither creeping bentgrass vigor, nutrition, nor leaf water content was influenced by significantly elevated levels of soil and tissue Si. Relative to non-trafficked plots, all split plots within trafficked main plots showed similarly reduced canopy quality regardless of topdressing treatment. If a critical threshold leaf Si concentration for creeping bentgrass wear tolerance enhancement exists, it is unlikely <11 g Si kg −1 .

Suggested Citation

  • Derek T. Pruyne & Maxim J. Schlossberg & Wakar Uddin, 2020. "Creeping Bentgrass Fairway Wear Resistance by Granular Topdressing of Ca/Mg-rich Liming Agents," Agriculture, MDPI, vol. 10(2), pages 1-13, February.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:2:p:43-:d:320460
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