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Comparison of Biofuel Systems (COBS) Experiment

COBS is a large, multi-investigator, long-term, cropping-systems experiment.  Click here to go to the COBS experiment website.

My research focus in that experiment is comparing the growth and biomass production of fertilized and unfertilized prairies and continuous corn systems; examining the effects of nitrogen fertilization on prairie diversity, development, and feedstock characteristics; and determining the estimated biofuel yields and net energy balances of all of the cropping systems.

This is an aerial photograph of the COBS experiment taken by Tom Schultz in August 2009.  COBS is located at the South Reynoldson Farm in Boone County, IA.

Articles from COBS Experiment:

  • Jarchow, M.E. and M. Liebman (in review) Nitrogen fertilization increases diversity and productivity of prairie communities used for bioenergy. Ecological Applications

You Tube videos featuring the COBS Experiment:

Other COBS Information:

COBS Experiment Handout

COBS Experiment Poster made by Ranae Dietzel