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    • Journal of Range Management, Volume 47 (1994)
    • Journal of Range Management, Volume 47, Number 3 (May 1994)
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    Tiller defoliation patterns under frontal, continuous, and rotation grazing

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    Author
    Volesky, J. D.
    Issue Date
    1994-05-01
    Keywords
    frequency
    tussock grasslands
    Bothriochloa ischaemum
    stocking rate
    tillers
    grazing intensity
    browsing damage
    cattle
    defoliation
    grazing
    
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    Show full item record
    Citation
    Volesky, J. D. (1994). Tiller defoliation patterns under frontal, continuous, and rotation grazing. Journal of Range Management, 47(3), 215-219.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644488
    DOI
    10.2307/4003019
    Additional Links
    https://rangelands.org/
    Abstract
    An investigation was conducted to characterize the intensity and frequency of tiller defoliation in 'Plains' Old World bluestem (Bothriochloa ischaemum (L.) Keng) under frontal, continuous, and 2-paddock rotation grazing systems. Frontal grazing allows cattle a continuous opportunity to graze fresh forage via a livestock-pushed sliding fence that allocates and controls grazing within a pasture. Nearly 100% of frontal grazing tillers were defoliated at least once during a 3-hour period as the frontal fence was advanced over the transect ares. The initial defoliation intensity of tillers under frontal grazing was also significantly higher and remaining tiller height less than that of tillers under rotation or continuous grazing (P < 0.05). Tillers under frontal grazing were defoliated at a faster rate compared to rotation or continuous grazing, but cattle had access to them for only 6 to 8 days of the entire grazing season. Season-long defoliation frequency was estimated to be 2.4, 4.6, and 4.7 times for frontal, continuous, and rotation grazing, respectively. Tillers that originated from the perimeter of a tussock were initially taller than those arising from the center (P < 0.05); however, frequency and intensity of defoliation was similar for both tiller locations. Significant relationships were also described between defoliation frequency and stocking rate and between defoliation frequency and herbage allowance. Defoliation frequency increased linearly as stocking rate increased; and conversely, defoliation frequency decreased quadratically as herbage allowance increased. Data from this study suggest that the pattern of tiller defoliation under frontal grazing enhanced forage production which allowed the maintenance of higher stocking rates.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003019
    Scopus Count
    Collections
    Journal of Range Management, Volume 47, Number 3 (May 1994)

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