Tree fertilization is a common practice in arboriculture, and while reports have shown that nitrogen can increase fine root growth in localized areas, the effect on a tree’s entire root system has not been thoroughly investigated. Gary Watson and Angela Hewitt take a look at how effective fertilizer can be as a root stimulant. (A, M, Bs)
ISA's scientific journal Arboriculture & Urban Forestry (AUF) helps disseminate new research findings about the management of trees in urban environments. This quiz highlights an article from an issue of AUF with the objective of bridging the gap between scientific research and practical application. Learn about the latest arboricultural research happening around the world while also earning your CEUs.
CEUs for this quiz may be earned only once during the life of your certification.