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Variability in Cotton Fiber Yield, Fiber Quality, and Soil Properties in a Southeastern Coastal Plain

Richard M. Johnson*,a, Robert G. Downerb, Judith M. Bradowc, Philip J. Bauerd and E. John Sadlerd

a USDA-ARS, Sugarcane Res. Unit, Houma, LA 70360
b Dep. of Exp. Stat., Louisiana State Univ., Baton Rouge, LA
c USDA-ARS, Southern Regional Res. Cent., 1100 Robert E. Lee Blvd., New Orleans, LA 70124
d USDA-ARS, Coastal Plains Res. Cent., Florence, SC



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Fig. 1. Variograms for (a) soil clay content (%) in 1996, (b) soil Mg (mg kg-1) in 1997, (c) soil organic matter (%) in 1996, and (d) soil P (mg kg-1) in 1996.

 


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Fig. 2. Variograms for (a) fiber diameter (µm) in 1996, (b) fiber yield (kg ha-1) in 1997, (c) fiber micronAFIS in 1997, and (d) fiber elongation (%) in 1997.

 


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Fig. 3. Kriged contour plots of (a) cotton fiber yield (kg ha-1) in 1997, (b) cotton micronAFIS in 1997, and (c) soil pH in 1997.

 


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Fig. 4. Kriged contour plots of (a) soil cation exchange capacity (cmolc kg-1) in 1996, (b) soil clay content in 1996, and (c) cotton fiber length by weight (mm) in 1996.

 





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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education
Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality
The Plant Genome
Copyright © 2002 by the American Society of Agronomy.