Full TGIF Record # 183081
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Web URL(s):https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2005.0396a
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https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2005.0396a
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Publication Type:
i
Refereed
Author(s):Franzluebbers, A. J.; Stuedemann, J. A.
Author Affiliation:USDA-ARS, Watkinsville, GA
Title:Soil carbon and nitrogen pools in response to tall fescue endophyte infection, fertilization, and cultivar
Source:Soil Science Society of America Journal. Vol. 69, No. 2, March 2005, p. 396-403.
Publishing Information:Madison, WI: Soil Science Society of America
# of Pages:8
Keywords:TIC Keywords: Acremonium coenophialum; Aggregates; Biomass; Cultivar variation; Endophyte-infected plants; Fertilization rates; Festuca arundinacea; Insect surveys; Nitrogen; Percent living ground cover; Soil organic carbon
Cultivar Names:Kentucky-31; Johnstone
Abstract/Contents:"Tall fescue (Festuca arundinacea Schreb.) is an important cool-season perennial forage used for grazing animals in the humid regions of the USA and throughout the world. The fungal endophyte Neotyphodium coenophialum Glenn, Bacon, & Hanlin naturally inhabits the majority of tall fescue stands producing a variety of alkaloids in leaf tissue that can cause animal health disorders on ingestion. We hypothesized that endophyte infection would modify the stock and activity of various soil C and N pools (total, particulate, microbial biomass, and mineralizable), but that fertilization (13.4-1.5-5.6 vs. 33.6-3.7-13.9 g NPK m-2 yr-1) and cultivar ('Kentucky'-31, K-31; 'AU-Triumph'; and 'Johnstone') might alter these responses. Soil organic C and total N at a depth of 0 to 20 cm under K-31 with high fertilization were greater with high (4197 g C m-2 and 266 g N m-2) than with low (3872 g C m-2 and 242 g N m-2) endophyte infection at the end of 20 yr. Under low fertilization, soil organic C and total N were not different between low and high endophyte infection. Differences in C and N pools among cultivars with low fertilization were as large as among K-31 fertilization-endophyte comparisons, but appeared to be related to factors other than endophyte infection frequency. Carbon and N contents of small macroaggregates (0.25-1.0 mm) were the only soil properties that were related (r = 0.70, P = 0.001) to endophyte infection frequency (range of 1-79%) across all treatments. Soil C and N pools can be modified by endophyte infection, but these results narrowed this phenomenon to (i) conditions of higher fertility and (ii) predominantly in small macroaggregates."
Language:English
References:32
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Franzluebbers, A. J., and J. A. Stuedemann. 2005. Soil carbon and nitrogen pools in response to tall fescue endophyte infection, fertilization, and cultivar. Soil Science Society of America Journal. 69(2):p. 396-403.
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Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2005.0396a
    Last checked: 02/28/2024
    Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2005.0396a
    Last checked: 02/28/2024
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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