1999/02/01 by S. E. Allaire-Leung, S.E Allaire-Leung, Jean‐François Caron +3 · 1 citation
Agricultural and Biological Sciences · Environmental Science · #Composting and Vermicomposting Techniques #Seedling growth and survival studies #Growth and nutrition in plants
paper · pdf · doi:10.4141/s98-060
Aeration is a critical factor of substrate performance for container grown plants. In a 14-mo nursery study, although air-filled porosity dropped below optimum values, the gas relative diffusivity was unaffected, as a result of an increase in pore effectiveness. This indicates that, contrary to the general belief, aeration properties of potting substrates may not deteriorate with time. Key words: Potting soils, container substrates, air-filled porosity, gas diffusivity