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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Copyright © 2002 by the American Society of Agronomy.