Jackson Brian, E., D. Wright Robert, and C. Barnes Michael. ““Methods of Constructing a Pine Tree Substrate from Various Wood Particle Sizes, Organic Amendments, and Sand for Desired Physical Properties and Plant Growth.”.” Hortscience 45, no. 1 (January 2010): 103–12.
Wright Robert, D., E. Jackson Brian, C. Barnes Michael, and F. Browder Jake. ““The Landscape Performance of Annual Bedding Plants Grown in Pine Tree Substrate.”.” Horttechnology 19 (March 2009): 78–82.
Jackson Brian, E., D. Wright Robert, and C. Barnes Michael. ““Pine Tree Substrate, Nitrogen Rate, Particle Size, and Peat Amendment Affect Poinsettia Growth and Substrate Physical Properties.”.” Hortscience 43, no. 7 (December 2008): 2155–61.