Updated: May 18, 2021
By Jonathan S. Kays

Deep-row application of biosolids on reclamation sites is a unique alternative land application method that solves many of the problems associated with surface application techniques. When combined with the growth of nitrogen demanding hybrid poplar trees, it provides a natural recycling system that utilizes nutrients on-site, produces forest products, generates wildlife habitat, and reduces erosion while reclaiming abandoned, biologically dead soils created by sand and gravel surface mining operations. The purpose of this study was to test a variety of hybrid poplar clones to see which perform best after two years of growth in this unique application.

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