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    • Journal of Range Management, Volume 45 (1992)
    • Journal of Range Management, Volume 45, Number 3 (May 1992)
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    Response of Central Plains tallgrass prairies to fire, fertilizer, and atrazine

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    Author
    Masters, R. A.
    Vogel, K. P.
    Mitchell, R. B.
    Issue Date
    1992-05-01
    Keywords
    plant cultural practices
    Bromus inermis
    crop quality
    atrazine
    Poa pratensis
    fires
    fire effects
    nitrogen fertilizers
    Nebraska
    Sorghastrum nutans
    Andropogon gerardii
    prairies
    biomass
    range management
    botanical composition
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    Citation
    Masters, R. A., Vogel, K. P., & Mitchell, R. B. (1992). Response of Central Plains TalIgrass Prairies to fire, fertilizer, and atrazine. Journal of Range Management, 45(3), 291-295.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644776
    DOI
    10.2307/4002980
    Additional Links
    https://rangelands.org/
    Abstract
    Tallgrass prairies are an important forage resource in the eastern Central Great Plains. The effect of spring burning, fertilization, and atrazine [6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine] on standing crop of selected herbaceous species and categories of vegetation was determined in 6 tallgrass prairie environments located near Lincoln and Virginia, Neb., from 1987 through 1989 and 1 site near Bloomfield, Neb., in 1987. The grasslands were in good to excellent condition at the time these studies were conducted. Portions of each site were burned in mid-to late spring, atrazine was applied at a rate of 2.2 kg a.iha-1 in late April to early May, and fertilizer was applied in mid-May. Despite below-normal precipitation at 6 of the 7 sites, burning combined with fertilization improved warm-season grass standing crop by 50 to 127% in 5 of the 7 grassland environments studied. This reflected the positive response of the dominant warm-season grasses, big bluestem (Andropogon gerardii Vitman var. gerardii Vitman) and indiangrass [Sorghastrum nutans (L.) Nash], to burning or fertilization. Atrazine increased warm-season grass standing crop at only the site near Bloomfield. Kentucky bluegrass (Poa pratensis L.) and annual bromes (Bromus spp.) were more susceptible to atrazine than smooth brome (Bromus inermis Leyss.). Forb standing crop was significantly reduced by atrazine alone or by burning followed by atrazine application in 4 of the 7 prairie environments. Burning combined with fertilizer application improved warm-season grass standing crop in good to excellent condition grasslands and obviated the need to use atrazine.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002980
    Scopus Count
    Collections
    Journal of Range Management, Volume 45, Number 3 (May 1992)

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