Maximum Yield USA 2012 March | Page 158

Root Zone Heating The key is to optimize the root zone conditions to conform to your plants’ comfort zone and then consistently deliver the appropriate temperature to the root area. soil—microbes, organic materials, soil fauna and flora, bacteria and so on. The physical aspect of soil deals with the solids, liquids and gasses found within it and the chemical aspect refers to things like pH levels, nutrients and fertilizers. All three areas are directly affected by temperature in differing ways. The key is to optimize the root zone conditions to conform to your plants’ comfort zone and then consistently deliver the appropriate temperature to the root area. The biological area—that is, the living components found within the soil—has been shown to have the most impact on the health and productivity of plants. For years, soi