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    • Journal of Range Management, Volume 50 (1997)
    • Journal of Range Management, Volume 50, Number 6 (November 1997)
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    Broom snakeweed control with fire on New Mexico blue grama rangeland

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    Author
    McDaniel, K. C.
    Hart, C. R.
    Carroll, D. B.
    Issue Date
    1997-11-01
    Keywords
    weed control
    estimation
    mortality
    Gutierrezia sarothrae
    fires
    fire effects
    equations
    relative humidity
    wind speed
    air temperature
    duration
    shortgrass prairie
    spring
    prescribed burning
    summer
    Bouteloua gracilis
    temperature
    prairies
    New Mexico
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    Citation
    McDaniel, K. C., Hart, C. R., & Carroll, D. B. (1997). Broom snakeweed control with fire on New Mexico blue grama rangeland. Journal of Range Management, 50(6), 652-659.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644059
    DOI
    10.2307/4003462
    Additional Links
    https://rangelands.org/
    Abstract
    Multiple fires conducted in spring (March-April) and summer (June-July) on blue grama (Bouteloua gracilis [H.B. K. Lag.]) grassland near Corona, N.M. were used to relate broom snakeweed (Gutierrezia sarothrae [Pursh] Britt &Rusby) control to pre-burn vegetation, weather, and fire conditions. Spring fires moved faster and burned cooler than summer fires as indicated by measurements from thermocouples giving the fire's rate of spread, temperature, and heat. In spring, broom snakeweed was in the bud stage with little green foliage and fires provided less average crown destruction (8%) and shrub mortality (65%) compared to summer fires (66% crown destruction, 92% mortality) when the shrub was growing actively. Air temperature and total fuel biomass positively influenced fire temperatures, and duration of heat above 60 degrees C resulting in high broom snakeweed mortality. Conversely, as relative humidity, wind speed, and fuel moisture increased, fire heat decreased, resulting in less broom snakeweed mortality. Attempts to conduct spring or summer fires over a 6-year period in central New Mexico were complicated and often unsuccessful because of unsuitable weather and fuel conditions. We concluded ideal weather conditions must converge before, during, and after a prescribed burning event in order to maximize broom snakeweed control and forage growth on these grasslands.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003462
    Scopus Count
    Collections
    Journal of Range Management, Volume 50, Number 6 (November 1997)

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