Comparative productivity of six bioenergy cropping systems on marginal lands in the Great Lakes Region, United States

Growing lignocellulosic crops on marginal lands is a promising solution for sustainable biofuel production. We evaluated the productivity of bioenergy cropping systems (switchgrass [Panicum virgatum L., var. Cave‐In‐Rock], miscanthus [Miscanthus × giganteus, ‘Illinois clone’], hybrid poplar [Populus nigra × P. maximowiczii A. Henry ‘NM6’], native grasses [five species], early successional vegetation, and restored prairie vs. historical vegetation [as reference control]) with and without nitrogen fertilization on low‐fertility former cropland at five sites in the Great Lakes Region, United States. We reported biomass yields for the first 7 years after establishment. Switchgrass was most consistently productive across all sites, but miscanthus was more productive at three of the five sites. When averaged across sites, years, and nitrogen (N) treatments, biomass yields followed the order miscanthus > switchgrass > hybrid poplar ≈ native grasses > restored prairie > early succes..., See accompanying paper for details., , # Data from: Comparative productivity of six bioenergy cropping systems on marginal lands in the Great Lakes Region, United States

**Title:** **Agronomic soil chemistry data from deep core samples - GLBRC-Marginal Land Experiment**
Description:
*year = year soil sampled.
*sample_date = date of the month soil sampled.
*site = marginal land site in Michigan or Wisconsin where deep core soil samples collected.
*treatment = dedicated bioenergy cropping system. G5-G11 include switchgrass, miscanthus, native grasses, hybrid poplar, early successional vegetation, restored prairie, and historical vegetation control, respectively.
*campaign = soil sampling method which is deep core sampling (1 m).Each deep core sample consisted of four horizons (0-10 cm, 10-25 cm, 25-50 cm, and 50-100 cm).
*replicate = replicate nested within the treatment.
*top_depth_cm = upper soil sampling dept given in centimeters.
*bottom_depth_cm =lower soil sampling depth given in centimeters.
*ph = pH of soil solution.
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