Leopold Center for Sustainable Agriculture

Completed Competitive Grant

Demonstration of an agroforestry system to minimize pollution hazards from land application of treated municipal sludge

Project ID: 1995-47

Abstract

Iowa has over 700 communities that generate municipal biosolids by various treatment means. These biosolids contain valuable nutrients. In this study, municipal biosolids are applied to trees, perennial grasses, and corn/soybean crops in an alley cropping (repeated tree strips combined with crops) system. The goal is to produce economical quantities of biomass and grains with reduced use of fossil fuel-based fertilizers and minimal environmental impacts.

Lead investigator: Joe Colletti, ISU Forestry, et al

Year of grant completion: 1998

This competitive grant project was part of the Leopold Center's Initiative.

Topics: Bioeconomy and energy