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Production and Nutritive Value of Grazed Simple and Complex Forage Mixtures

^a Crop and Soil Sci. Dep., Pennsylvania State Univ., University Park, PA 16802
^b USDA-ARS, Pasture System and Watershed Manage. Res. Unit, Building 3702, Curtin Road, University Park, PA 16802

View larger version (32K): [in this window] [in a new window]   Fig. 1. Average monthly air temperature during 2002, 2003, and 2004 at the Haller Farm near State College, PA.

View larger version (32K): [in this window] [in a new window]   Fig. 2. Monthly precipitation during 2002, 2003, and 2004 at the Haller Farm near State College, PA.

View larger version (27K): [in this window] [in a new window]   Fig. 3. Grass species botanical composition (expressed as a fraction of botanical composition of the stand) in two-, three-, six-, and nine-species mixtures during spring, summer, and fall of 2002, 2003, and 2004.

View larger version (21K): [in this window] [in a new window]   Fig. 4. Legume species botanical composition (expressed as a fraction of botanical composition of the stand) in two-, three-, six-, and nine-species mixtures during spring, summer, and fall of 2002, 2003, and 2004.

View larger version (25K): [in this window] [in a new window]   Fig. 5. Chicory and weed botanical composition (expressed as a fraction of botanical composition of the stand) in two-, three-, six-, and nine-species mixtures during spring, summer, and fall of 2002, 2003, and 2004.

View larger version (18K): [in this window] [in a new window]   Fig. 6. Seasonal dry matter (DM) production (expressed as percentage of total DM) for 2002, 2003, and 2004. Shaded areas of each bar refer to forage growth during particular seasons (black, spring; gray, summer; white, fall). Yields within each season with same letters are not significantly different among years according to Tukey's mean separation (P < 0.05).