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Organic and Other Management Strategies with Two- and Four-Year Crop Rotations in Minnesota

^a Dep. of Agron. and Plant Genet., 1991 Buford Circle, Univ. of Minnesota, St. Paul, MN 55108-6026
^b USDA-ARS, 233 Johnson Hall, Pullman, WA 99164-6421
^c Dep. of Crop and Soil Sci., Washington State Univ., Pullman, WA 99164-6420
^d Southwest Res. and Outreach Cent., Lamberton, MN 56152
^e College of Biol. and Agric., Brigham Young Univ., 301 WIDB, PO Box 25250, Provo, UT 84602-5250

View larger version (37K): [in a new window]   Fig. 1. Corn grain yields in the V1 and V2 trials involving two rotation lengths (2 or 4 yr) and four management strategies [zero inputs (ZI), low purchased inputs (LI), high purchased inputs (HI), and organic inputs (OI)] at Lamberton, MN.

View larger version (33K): [in a new window]   Fig. 2. Soybean grain yields in the V1 and V2 trials involving two rotation lengths (2 or 4 yr) and four management strategies [zero inputs (ZI), low purchased inputs (LI), high purchased inputs (HI), and organic inputs (OI)] at Lamberton, MN.

View larger version (27K): [in a new window]   Fig. 3. Oat grain yields in the V1 and V2 trials involving two rotation lengths (2 or 4 yr) and four management strategies [zero inputs (ZI), low purchased inputs (LI), high purchased inputs (HI), and organic inputs (OI)] at Lamberton, MN.

View larger version (29K): [in a new window]   Fig. 4. Alfalfa forage yields in the V1 and V2 trials involving two rotation lengths (2 or 4 yr) and four management strategies [zero inputs (ZI), low purchased inputs (LI), high purchased inputs (HI), and organic inputs (OI)] at Lamberton, MN.