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Book: Proceedings of the Third International Turfgrass Research Conference
Published by: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America

 

This chapter in PROCEEDINGS OF THE THIRD INTERNATIONAL TURFGRASS RESEARCH CONFERENCE

  1.  p. 65-74
     
    Proceedings of the Third International Turfgrass Research Conference

    James B. Beard (ed.)

    ISBN: 978-0-89118-248-1

     

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doi:10.2135/1974.proc3rdintlturfgrass.c9

Response of Warm- and Cool-Season Turfgrass Polystands to Nitrogen and Topdressing1

  1. D. T. Hawes

Abstract

Abstract

The growing of high quality, low cut turf in the transition zone is difficult. The following four turf species are commonly used for the above purpose: bermudagrass ( Cynodon dactylon L.); zoysiagrass (Zoysia japonica Steud.); creeping bentgrass (Agrostis palustris Huds.); Kentucky bluegrass (Poa pratensis L.). A cultural study was conducted using these four species in an attempt to grow polystands of warm- and cool-season grasses which would overcome weaknesses of each individual species. Winter and summer N fertilization programs were compared along with a sand topdressing program on eight grass polystands and monostands of the four species. The summer N fertilization program was unsatisfactory since it encouraged bermudagrass while decreasing the cool-season grass population. The winter N program allowed the cool-season species to dominate in the spring and the bermudagrass to dominate in the summer without loss of either until the bermudagrass was killed in the unusually severe winter of 1976–77. Sand topdressing reduced spring dead spot in bermudagrass and encouraged bentgrass recovery in the fall.

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Copyright © 1980. Copyright © 1980 by the American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, and International Turfgrass Society, 5585 Guilford Rd., Madison, WI 53711 USA