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Herbicide Sorption Coefficients in Relation to Soil Properties and Terrain Attributes on a Cultivated Prairie

^a Dep. of Soil Science, Univ. of Manitoba, 380 Ellis Bldg., Winnipeg, Manitoba, Canada R3T 2N2
^b North Central Soil Conservation Research Lab., USDA-ARS, Morris, MN 56267
^c South Dakota State Univ., Dep. of Plant Science, 247 SNP, Box 2140C, Brookings, SD 57007-2141

View larger version (73K): [in this window] [in a new window]   Fig. 1. The patterns of the distribution of the (A) 2,4-D sorption coefficient (L kg–1), (B) 2,4-D soil organic carbon (SOC) sorption coefficient, (C) soil pH, (D) soil carbonate content (g kg–1), (E) soil loss (–) or gain (+) by tillage + water erosion (Mg ha–1 yr–1), (F) SOC content (g kg–1), (G) compounded topographic index, (H) glyphosate sorption coefficient (L kg–1), and (I) glyphosate SOC sorption coefficient across the study site. The unit of scale bars is meters.