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Published online 13 September 2006
Published in J Environ Qual 35:1863-1872 (2006)
DOI: 10.2134/jeq2005.0458
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Solute Response to Changing Nutrient Loads in Soil and Walled Ceramic Cup Samplers under Continuous Extraction

R. D. Lentz*

U.S. Dep. of Agriculture, Agricultural Research Service, Northwest Irrigation and Soils Research Laboratory, 3793 N 3600 E, Kimberly, ID 83341


Figure 1
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  		Fig. 1. Diagram of soil water percolation sampler showing the various components and their relation to soil in a field installation.

 

Figure 2
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  		Fig. 2. Cup configuration, Exp. 1. Solute breakthrough curves for nutrient solution phase (solution B applied) and irrigation water phase (solution A applied). The vertical gray line indicates the start of the irrigation water application. The mean solute concentration and standard deviation at indicated pore volume values are included to allow comparisons among breakthrough curves.

 

Figure 3
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  		Fig. 3. Cup-flour configuration, Exp. 1. Solute breakthrough curves for nutrient solution phase (solution B applied) and irrigation water phase (solution A applied). The vertical gray line indicates the start of the irrigation water application. The mean solute concentration and standard deviation at indicated pore volume values are included to allow comparisons among breakthrough curves.

 

Figure 4
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  		Fig. 4. CF-soil configuration, Exp. 1. Solute breakthrough curves for nutrient solution phase (solution B applied) and irrigation water phase (solution A applied). The vertical gray line indicates the start of the irrigation water application. The mean solute concentration and standard deviation at indicated pore volume values are included to allow comparisons among breakthrough curves.

 

Figure 5
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  		Fig. 5. CF-soil configuration, Exp. 2. Solute breakthrough curves for nutrient solution phase (solution C applied) and irrigation water phase (solution A applied). The vertical gray line indicates the start of the irrigation water application. The mean solute concentration and standard deviation at indicated pore volume values are included to allow comparisons among breakthrough curves.

 




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