KBS/LTER Key
Soils were sampled from Kellogg Biological Station Long Term Ecological Station (KBS/LTER) in Hickory Corners MI.
All the six repetitions from T1, T2, T4, and T7 were sampled, the samples were composite samples; for DF and SF, the three repetitions were sampled and each of the five sub-repetitions were also sampled, making a total of 15 samples per each DF and SF repetition. The treatments sampled were:
| Key to treatment abbreviation at KBS/LTER used in this experiment | |
|---|---|
| DF | Decidous forest |
| SF | Sucessional field |
| T1 | Conventional wheat/corn/soybean conventional till |
| T2 | No-till wheat/corn/soybean no till |
| T4 | Reduced-input organic wheat/corn/soybean + clover |
| T7 | T7 Early successional community |
Fig. 1. Aerial image of the KBS/LTER sites, picture taken from the KBS/LTER website: http://lter.kbs.msu.edu/experimentalDesign.htm
"Support for this research was also provided by the NSF Long-Term Ecological Research Program at the Kellogg Biological Station and by the Michigan Agricultural Experiment Station."