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    • Journal of Range Management, Volume 40 (1987)
    • Journal of Range Management, Volume 40, Number 2 (March 1987)
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    Growth and Reproduction of Grasses Heavily Grazed Under Rest-Rotation Management

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    Author
    Eckert, R. E.
    Spencer, J. S.
    Issue Date
    1987-03-01
    Keywords
    Elymus elymoides
    Festuca idahoensis
    Pseudoroegneria spicata
    basal area
    Achnatherum thurberianum
    crop-weed competition
    growth
    rotational grazing
    Artemisia tridentata
    cattle
    botanical composition
    Nevada
    grazing
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    Citation
    Eckert Jr, R. E., & Spencer, J. S. (1987). Growth and reproduction of grasses heavily grazed under rest-rotation management. Journal of Range Management, 40(2), 156-159.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645345
    DOI
    10.2307/3899210
    Additional Links
    https://rangelands.org/
    Abstract
    This study evaluated the effects of heavy forage use in a rest-rotation grazing system on the basal-area growth and frequency of occurrence of native bunchgrasses from 1975 to 1984. None of these grasses increased in basal-area cover with brush competition or in basal-area cover or frequency without brush competition when subjected to periodic heavy grazing (65% utilization in June and 75% in July) during the growing season. When plants were protected from grazing, average basal-area cover increased for Idaho fescue [Festuca idahoensis Elmer] and squirreltail [Sitanion hystrix (Nutt.) J.G. Sm.] in a Wyoming big sagebrush [Artemisia tridentata wyomingensis Beetle]-Idaho fescue community type and for Thurber needlegrass [Stipa thurberiana Piper] in a Wyoming big sagebrush-bluebunch wheatgrass [Agropyron spicatum (Pursh) Scribn. & Smith] community type. Average basal-area cover was unchanged for protected Thurber needlegrass plants in a Wyoming big sagebrush-Thurber needlegrass community type. Average basal-area cover of Thurber needlegrass plants in the same community type decreased when heavily grazed during the growing season in 1 year during the first 3 years of the study and with no grazing during the growing season in the last 4 years of the study. Bluebunch wheatgrass showed no differential response to grazing or protection. Results of this study strongly implicate periodic heavy grazing during the growing season as a primary cause of restricted basal-area growth and lack of reproduction. These results support the contention that such grazing pressure can prevent range improvement in an otherwise appropriate rotation grazing system.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3899210
    Scopus Count
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    Journal of Range Management, Volume 40, Number 2 (March 1987)

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