Agronomy Journal -- Staggenborg and Vanderlip 97 (2): 378 Figure IG1

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Fig. 1. Simulated ( ${circ}$ ) and measured (•) crop yields from 1961 to 2000, and wheat yields at Tribune, KS, from 1974 to 1987 for (A) wheat in a wheat–sorghum–fallow (WSF) rotation, (B) wheat in a wheat–fallow (WF) rotation, and (C) grain sorghum in WSF rotation.