This makes it more difficult to change water temperature, and root zone temperatures are kept steady as a result. Raft systems have a lot of thermal mass in the hundreds of gallons of water in the troughs. If you’re familiar with plant function, you know that plant roots aren’t built for rapid temperature change, so keeping temperatures steady is key to plant health. The pros of raft systems include a low capital investment compared to other aquaponic systems, and their ability to stabilize root zone temperatures. L ike any technique, raft production is suited to particular climates and crops. In an aquaponic raft system, rafts float over water channels and the plants grow from the top of the raft with their roots dangling in the solution below. His success with the large aquaponic raft system has provided data, ratios, and management practices which laid a foundation for growers all over the world. Rakocy at the University of the Virgin Islands (UVI) was the first person to develop an aquaponic raft system (or DWC, deep water culture system) on a commercial scale. In your pursuit of aquaponic excellence through DWC growing, there is one name that you must know: Rakocy.ĭr.
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