Switchgrass Cultivar/Ecotype Selection and Management for Biofuels in the Upper Southeast USA

Table 1

Location, elevation, soil series, pH, and hardiness zones of sites where switchgrass varieties were evaluated as a biofuels crop in 2000 and 2001. The pH values collected in 1992 during the establishment of the switchgrass plots at all locations.

State	Town	Lat. N	Long. W	Elev.	Soil series	pH	Hardiness Zone [30]
		Degree, Min		m
KY	Princeton	37°06′	87°49′	173	Tilsit, 2 to 6% slope; (fine-silty, mixed, mesic Typic fragiudults)	6.8	7a
NC	Raleigh	35°43′	78°40′	120	Cecil, 5 to 10% slope; (fine, kaolinitic thermic Typic Kanhapludults)	6.3	7b
TN	Jackson (TN1)	35°37′	88°55′	120	Deanburg, 2 to 5% slope; (fine-loamy, mixed, thermic Ultic Hapludalfs)	5.7	8a
	Knoxville (TN2)	35°53′	83°57′	250	Etowah, 5 to 12% slope; (fine-loamy, siliceous, thermic Typic Paleudults)	5.5	7a
VA	Blacksburg	37°11′	80°25′	600
	Site A; (VA1)				Chatter, 2 to 5% slope; (clayey, kaolinitic, mesic Typic Paleudult)	6.2	6b
	Site B; (VA2)				Shot tower, 10 to 15%; (clayey, kaolinitic, mesic Typic Paleudults)	6.2	6b
	Orange (VA3)	38°13′	78°07′	156	Davidson, 10% slope; (clayey, kaolinitic, thermic Rhodic Kandiudults)	5.6	7a
WV	Morgantown	39°37′	79°55′	378	Dormont, 2 to 5% slope; (fine-loamy, mixed, mesic Ultic Hapludalfs)	6.2	6b