Fig. 2. Observed and Case I simulated monthly NO3–N losses during 1990–1993 at Lamberton, MN, for (a) continuous corn (CC), (b) corn–soybean (CS), and (c) continuous alfalfa (CA).
Fig. 2. Observed and Case I simulated monthly NO3–N losses during 1990–1993 at Lamberton, MN, for (a) continuous corn (CC), (b) corn–soybean (CS), and (c) continuous alfalfa (CA).