Greenhouse Study

Methods to be Employed to meet Objective 1 — Based upon information retrieved from the National Gardening Association, and Pima and Yavapai county Master Gardeners, onion, squash, bean, radish and lettuce was selected, and grown in three different soil treatments at the UA Controlled Environment Agriculture Center. Three soil treatments were: Treatment 1) Dewey-Humboldt, AZ residential soil with elevated arsenic and lead levels, mixed with 25% garden soil and 10% mine tailing waste from the Iron King Mine; Treatment 2) Dewey-Humboldt, AZ residential soil with elevated arsenic and lead levels, mixed with 25% garden soils; and Treatment 3) Dewey-Humboldt, AZ residential soil with background levels of arsenic and lead, mixed with 25% garden soil.

Samples will be prepared using following standard operating procedures (washing, drying, grinding) and analyzed for total metals (arsenic, lead, cadmium, nickel, copper, iron, molybdenum, chromium, selenium, mercury, zinc, manganese, cobalt, barium, boron) using standard laboratory instrumentation at the UA’s Water Quality Lab located at the Environmental Research Station, and the Hazardous Identification Core located in the College of Pharmacy.

To view images of the greenhouse vegetables, please visit:
http://gallery.me.com/gardenroots