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    • Journal of Range Management, Volume 45 (1992)
    • Journal of Range Management, Volume 45, Number 5 (September 1992)
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    A comparison of drills for direct seeding alfalfa into established grasslands

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    Author
    Waddington, J.
    Issue Date
    1992-09-01
    Keywords
    comparison
    seed drills
    direct seeding
    crop establishment
    permanent grasslands
    Medicago sativa
    seedling emergence
    Saskatchewan
    pastures
    soil water content
    seed germination
    range management
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    Citation
    Waddington, J. (1992). A comparison of drills for direct seeding alfalfa into established grasslands. Journal of Range Management, 45(5), 483-487.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644507
    DOI
    10.2307/4002907
    Additional Links
    https://rangelands.org/
    Abstract
    Information is presented on the suitability of various drills for direct seeding into permanent pastures and rangelands in Saskatchewan. Strips of sod 30 to 100-cm wide were killed during the growing season by glyphosate (N-[phosphonomethyl] glycine) in grazing lands at several sites in Saskatchewan. Six drills: 1 with a powered disk furrow opener, 2 with hoe openers, and 3 with rolling disk openers were used to seed measured amounts of alfalfa (Medicago sativa L.) seed in the killed strips in late fall of the same year or early the subsequent spring. Drill performance was assessed during the seeding operation, and emerged seedlings were counted early the following growing season. Seedling emergence ranged from near 0 to 48% of seed sown. Soil moisture conditions in early spring, which in turn were a function of winter precipitation, were a major limitation on seed germination. All of the furrow-opening mechanisms were capable of placing seed at a suitable depth for successful establishment in some situations. The best seedling emergence was obtained with drills having each opener suspended independently with sufficient weight to penetrate dead thatch and hard ground, and with mechanisms to control seeding depth and pack the soil around the seeds.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002907
    Scopus Count
    Collections
    Journal of Range Management, Volume 45, Number 5 (September 1992)

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