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Agron Agronomy application average Bromide C. B. Tanner central Wisconsin chloride concentrations Cl concentrations Cl leached CM CM cm of drainage CM rH crop D. R. Keeney denitrification Department of Soil dry matter Dye trace electrode estimates evapotranspiration experiment fertilizer and irrigation Field and lysimeter field cores ground water growing season halide Imp treatment inputs irrigated potatoes July kg N/ha leachate leaching losses Lincoln College locations lysi ment mg/liter nitrate and chloride Nitrate-N and chloride Nitrate-N and Cl nitrification non-uniform infiltration P. G. Saffigna Page PAPER PAPER petioles Plainfield loamy sand plant stems plots potato plants precipitation rainfall rH CM Rhodamine WT root zone Russet Burbank potatoes sandy soil soil cores soil profile soil samples Soil Sci Soil Science soil water solute sprinkler irrigation stemflow stems subtreatment tensiometers tion tops and tubers tuber yields University of Wisconsin-Madison variability water content