Fig. 2. Relationship between annual biomass production of Alamo switchgrass and seasonal rainfall (March–August) for 1994 to 1998 at Stephenville, TX. R2 values for the 0, 56, and 224 kg N ha-1 rates were 0.56, 0.82, and 0.68, respectively.
Fig. 2. Relationship between annual biomass production of Alamo switchgrass and seasonal rainfall (March–August) for 1994 to 1998 at Stephenville, TX. R2 values for the 0, 56, and 224 kg N ha-1 rates were 0.56, 0.82, and 0.68, respectively.