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    • Journal of Range Management, Volume 40 (1987)
    • Journal of Range Management, Volume 40, Number 6 (November 1987)
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    Selective control of annual bromes in perennial grass stands

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    Author
    Currie, P. O.
    Volesky, J. D.
    Hilken, T. O.
    White, R. S.
    Issue Date
    1987-11-01
    Keywords
    propham
    propyzamide
    Bromus japonicus
    atrazine
    carbohydrates
    perennials
    weed control
    yields
    Bromus tectorum
    phosphorus
    Poaceae
    crude protein
    Montana
    nutritive value
    forage
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    Citation
    Currie, P. O., Volesky, J. D., Hilken, T. O., & White, R. S. (1987). Selective control of annual bromes in perennial grass stands. Journal of Range Management, 40(6), 547-550.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645235
    DOI
    10.2307/3898878
    Additional Links
    https://rangelands.org/
    Abstract
    Three soil-active herbicides: atrazine [6-chloro-N-ethyl]-N1-(1-methyethyl)-1,3,5-triazine-2,4-diamine]; propham (1-methylethyl phenyl carbamate); and pronamide [3,5-dichloro(N-1,1-dimethyl-2-propynyl)benzamide] were applied in the fall, postemergence to annual bromegrasses at 2 rates. These herbicides were evaluated for their efficacy in selective control of cheatgrass (Bromus tectorum L.) and Japanese brome (Bromus japonicus Thunb.) in perennial stands of crested wheatgrass (Agropyron cristatum [L.] Gaertn.), pubescent wheatgrass (Thinopyrum intermedium Host), Russian wildrye (Psathrostachys juncea [Fisch.] Nevski), and western wheatgrass (Pascopyrum smithii (Rydb.) Löve) and blue grama (Bouteloua gracilis) [H.B.K.] Lag. Ex Griffiths. Yields of annual bromegrasses and perennial grasses and crude protein (CP), phosphorus and total nonstructural carbohydrate (TNC) content of perennial grasses were measured 2 consecutive years after the single herbicide application. Yields of annual bromegrasses from the 3 herbicide treatments averaged 91 and 47% less than those of the control the first and second year posttreatment, respectively. Pronamide provided substantially better control the second year posttreatment than the other 2 herbicides. Yields of perennial grasses in the majority of the herbicide treatment-study site combinations were significantly increased the first year posttreatment (P<0.10). Crude protein of perennial grasses was increased in the atrazine treatment. Atrazine at 0.6 kg/ha was the most cost-effective herbicide for decreasing competition of annual bromegrasses and increasing yield of perennial grasses.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3898878
    Scopus Count
    Collections
    Journal of Range Management, Volume 40, Number 6 (November 1987)

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