TY - JOUR T1 - Factors Affecting the Establishment of Urban Trees JF - Arboriculture & Urban Forestry (AUF) JO - JOA SP - 217 LP - 219 DO - 10.48044/jauf.1979.051 VL - 5 IS - 10 AU - Carl E. Whitcomb Y1 - 1979/10/01 UR - http://auf.isa-arbor.com/content/5/10/217.abstract N2 - A series of studies has been conducted to determine ways to improve growth of newly planted trees. Incorporating soil amendments at planting time and placing black plastic beneath mulches were found to be detrimental to newly planted trees. Mulches alone were beneficial, particularly when used to maintain a cleared area around newly planted trees and reduce the competitive effects of lawn grasses. Pruning back the tops of newly planted dormant, bareroot, deciduous trees was not beneficial. ER -