出典:Wikipedia
出典:『Wikipedia』 (2011/05/11 18:57 UTC 版)
The Old Rotation is a soil fertility experiment on the Auburn University campus in Auburn, Alabama. The Old Rotation experiment, which started in 1896, is the third-oldest ongoing field crop experiment in the United States and the oldest continuous cotton experiment in the world. It was the first experiment to show that a cotton/legume crop rotation would allow soil to support a cotton crop indefinitely. The Old Rotation is listed on the National Register of Historic Places.
| ・Old Rotation | |
| ・weightened | |
| ・Jansson | |
| ・trimorphodon | |
| ・YLR261C | |
| ・necst | |
| ・an10 | |
| ・hotnot | |
| ・Farmoor | |
| ・sawgrasses |