The soil location for applying nitrogen to trees should be targeted at tree root concentration areas in healthy soil where nontarget organisms, erosion, and denitrification processes are minimized. Exempt a portion of the root plate area closest to the tree (3-5 feet radius around a medium-sized tree) from direct enrichment. Use any nitrogen designated for this stem base area across the rest of a site.
WSFNR-20-79C_Coder.pdf (201.57 KB)
Community and Urban Forestry