STEPHEN AUSMUS / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY STEPHEN AUSMUS / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY
Editorial use only.
Agricultural soil sampling. Baseline soil sampling being carried out to characterize the suitability of a farmer's field for cultivating maize cobs for bioenergy or biofuel production. A soil scientist and technician are separating samples by depth. Laboratory analysis will determine the content of carbon, nitrogen, and other soil nutrients. This research is being carried out in the USA by the US Department of Agriculture.
Model release not available. Property release not required.