Full TGIF Record # 30495
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Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1994.tb01971.x/epdf
    Last checked: 10/02/2015
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Publication Type:
i
Refereed
Author(s):Hopkins, A.; Adamson, A. H.; Bowling, P. J.
Author Affiliation:AFRC Institute of Grassland and Environmental Research, North Wyke Research Station, Okehampton, UK; Agricultural Development and Advisory Service, Bristol, UK
Title:Response of permanent and reseeded grassland to fertilizer nitrogen. 2. Effects on concentrations of Ca, Mg, K, Na, S, P, Mn, Zn, Cu, Co and Mo in herbage at a range of sites
Source:Grass and Forage Science. Vol. 49, No. 1, March 1994, p. 9-20.
# of Pages:12
Publishing Information:Oxford, Blackwell Scientific Publications
Keywords:TIC Keywords: Nitrogen fertilizers; Agrostis; Lolium perenne; Festuca rubra subsp. rubra; Holcus lanatus; Poa; Trifolium repens; Micronutrients; Minerals
Abstract/Contents:"The concentration of mineral elements in herbage from permanent swards of mixed species composition (predominately Agrostis spp., Holcus lanatus, Festuca rubra, Lolium perenne, Poa spp., etc.) was compared with that from sown perennial ryegrass (Lolium perenne) at two fertilizer rates (0 and 300 kg N ha-1 year-1, both with P and K) and with L. perenne/Trifolium repens (at 0 N with P and K). The investigation was conducted over four years at sixteen contrasting sites in England and Wales. Herbage samples for mineral analysis were taken at first ahd fourth harvests (May and August) each year from plots under 4-weekly cutting. There was a wide degree of variation between sites, particularly for concentrations of Ca, Mg, Na and all trace elements analysed. Herbage from L. perenne reseeds had significantly higher concentrations of Ca, Mg, Na, Co and S, but K, Mo, Zn, Cu and P were generally lower than in the permanent swards. L. perenne/T. repens swards had the highest concentration of major cations, but trace element levels were generally intermediate between those for 0 N permanent and L. perenne swards. Fertilizer N reduced concentrations of Ca, Mn, Mo and S, and increased Mg, Na and Zn, with no consistent effects on K, Co and Cu. Herbage at harvest 4, compared with harvest 1, had higher Ca, Mg, Na, Mn, Zn and S. Permanent and L. perenne swards responded similarly to fertilizer N and between harvest dates. Results are discussed in relation to previous reports of botanical and fertilizer effects on mineral concentrations, and the mineral requirements of livestock. Changes in mineral concentration resulting from reseeding permanent swards are considered unlikely to increase mineral-related livestock disorders, and in many cases could be beneficial, though problems might arise on sites where some elements, e.g. Cu and Mg, are low."
Language:English
References:32
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hopkins, A., A. H. Adamson, and P. J. Bowling. 1994. Response of permanent and reseeded grassland to fertilizer nitrogen. 2. Effects on concentrations of Ca, Mg, K, Na, S, P, Mn, Zn, Cu, Co and Mo in herbage at a range of sites. Grass Forage Sci. 49(1):p. 9-20.
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Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1994.tb01971.x/epdf
    Last checked: 10/02/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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