Full TGIF Record # 6077
Item 1 of 1
DOI:10.2136/sssaj1976.03615995004000060025x
Web URL(s):https://dl.sciencesocieties.org/publications/sssaj/pdfs/40/6/SS0400060883
    Last checked: 12/07/2016
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Rasnake, Monroe; Thomas, Grant W.
Author Affiliation:Rasnake: Assistant Professor, Agronomy, Virginia Polytechnic Instit. and State Univ., Blackstone; Thomas: Professor, Agronomy
Title:Potassium status of some alluvial soils in Kentucky
Section:Soil fertility and plant nutrition
Other records with the "Soil fertility and plant nutrition" Section
Source:Soil Science Society of America Journal. Vol. 40, No. 6, November/December 1976, p. 883-886.
Publishing Information:Madison, WI: Soil Science Society of America
# of Pages:4
Related Web URL:https://dl.sciencesocieties.org/publications/sssaj/abstracts/40/6/SS0400060883
    Last checked: 12/07/2016
    Notes: Abstract only
Keywords:TIC Keywords: Potassium; Soil types; Alluvial soils
Geographic Terms:Kentucky
Abstract/Contents:"Six alluvial soils from Kentucky were intensively cropped to Midland bermudagrass (Cynodon dactylon L. Pers.) to determine K availability in each soil. Potassium removal by the bermudagrass was compared to exchangeable K, to labile K estimated from Beckett quantity/intensity plots and to Gapon coefficients before and after cropping. Exchangeable K was not a good measure of uptake (r = 0.61 not significant), but labile K determined on soils before cropping and the Gapon coefficient after cropping gave highly significant linear correlations with K removed by bermudagrass. Exchangeable K after cropping changed an average of only 23 ppm K in the soils, but availability of K to plants was lowered drastically in all soils. This study shows that exchangeable K is an insensitive measurement of K availability to plants. Exchangeable K is a useable measurement only because wide ranges are used in determining classes of availability in soil testing."
Language:English
References:21
See Also:Other items relating to: Potassium
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rasnake, M., and G. W. Thomas. 1976. Potassium status of some alluvial soils in Kentucky. Soil Sci. Soc. Am. J. 40(6):p. 883-886.
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DOI: 10.2136/sssaj1976.03615995004000060025x
Web URL(s):
https://dl.sciencesocieties.org/publications/sssaj/pdfs/40/6/SS0400060883
    Last checked: 12/07/2016
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: S 590 .S65
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