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Effect of Alkaline-Stabilized Biosolids on Alfalfa Molybdenum and Copper Content

Department of Crop and Soil Sciences, The Pennsylvania State University, University Park, PA 16802-3504

View larger version (29K): [in a new window]   Fig. 1. Relationship between soil pH and alfalfa tissue Mo concentration for plots with various alkaline treatments.

View larger version (28K): [in a new window]   Fig. 2. Effect of cumulative loading of Mo from alkaline-stabilized biosolids (ASB) application on alfalfa tissue Mo content.

View larger version (27K): [in a new window]   Fig. 3. Effect of cumulative loading of Mo from alkaline-stabilized biosolids (ASB) application on yield-weighted alfalfa tissue Mo content and Cu to Mo ratio. Solid lines are linear regressions of Mo content on Mo addition, and dotted curves are three-parameter exponential decay regressions of Cu to Mo ratio on Mo addition. See Table 7 for parameter values for each regression.