Compaction Posted on September 13, 2016November 10, 2022 by PlumeriaDB ALL0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ Share This Tweet Share Pressure that squeezes soil into layers that resist root penetration and water movement. Often the result of foot or machine traffic. Related Images:Related Articles: Perlite vs VermiculiteWhy Use VitazymeWhy and How to Use VitazymeGlossary: Aeration or aerificationOverwatering your Plumeria