Maximum Yield USA 2012 September | Page 170

you tell us Aurelia Muckinhaupt (sales), Dennis Hunter (owner) and Khanhvi Hunter (owner) Ever wonder how fabric pots are constructed, and how they affect plant growth and crop yields? Here, Khanvi Hunter of GeoPots answers these questions and more. Maximum Yield(MY): How are GeoPots made? MY: What are the advantages of fabric containers for food crops? Khanvi Hunter: GeoPots are made of a high-quality polypropylene geotextile fabric. The fabric is cut to the specific size of each container, and sewn using a bonded polyester marine-grade thread. If you have seen a GeoPot, there is no missing our quality stitching on the top rim and signature quad-stitch down the side. Khanvi: More roots, more fruits. The biggest advantage of fabric containers for food crops is the air root pruning process, which creates thousand of fine fibrous feeder roots throughout the root zone. These feeder roots are more efficient in taking up water and nutrients, helping sustain robust plants and larger yields. Also, fabric containers allow air to enter the root zone from all surfaces of the container, thus promoting a healthy environment for the roots. Another common problem with traditional plastic containers is poor drainage, 168 Maximum Yield USA | September 2012 which leads to anaerobic conditions that result in soil-borne diseases like phytophthora and pythium (which are responsible for devastating root rot). Thanks to GeoPot’s unique porous fabric, excess water can easily drain from the container, keeping moisture at an ideal level for healthy plant growth. MY: What is air root pruning? What are the benefits to roots that are air pruned? Khanvi: With traditional plastic pots, the plant’s roots reach the inside edge of the container and are then forced to circle the container in search of a friendlier environment. As these roots circle, minimal lateral branching occurs, which results in poor nutrient uptake and causes the roots to quickly become root bound. What makes the GeoPot so unique is that when plant roots reach the container’s edge, its root tips are trapped by the porous fabric. When these root tips meet the air on the outside of the pot, they are naturally pruned. This pruning process forces lateral