Hydroponic Gardens: The Lettuce Raft Method – Hydroponics- Grow Raft System kratky -Different Methods of Aquaponics-Aquaponic systems Floating raft construction -The Kratky Method & Floating Raft Hydroponics -Non-circulating Hydroponic Methods for Growing Lettuce You will need – Two – 2 in. x 6 in. x 8 ft., you will need to cut one board to make two., 4 ft long. Then cut the other board to make two., 3 ft. 9inches. Plywood (Cut in half). One-7/16 in. x 4 ft. x 8 ft. Basically two pieces 7/16 in. x 4 ft. x 4 ft. Two cheap trim boards, 1 in. x 2 in. x 8 ft. One Roll 6 mil ,Black plastic 12-ft x 25-ft (Consumer Sheeting,Construction Film)., Get 12x 25 ft. plastic so you make one cut but get 2 layers of plastic in the bed. Good heavyduty Netcups. 3″ Net Pot, I got this its cheap and you get a bunch, .85 + Free Shipping. Sold by Atlantis Hydroponics http://www.amazon.com/ViagrowTM-Net-Pot-50-pack/dp/B00B9J8IYQ 1 sheet of Foam Insulation 4′ x 8′ Thickness: 1″, or 1.5″,Styrofoam insulation products offer high moisture resistance 2 and 3 inch wood screws Info on this type of system by BA Kratky It is called the Kratky method, developed by a professor from the Univ. of Hawaii. He found a setup that would allow you to grow the plants in a static nutrient solution without the need for aeration. PDF http://www.ctahr.hawaii.edu/hawaii/downloads/Three_Non-circulating_Hydroponic_Methods_for_Growing_lettuce.pdf I first seen it on mhpgardener youtube channel, here are his videos I watched and got the ideal from then made the beds to the size i wanted. watch all his videos on it. he talks about fertilizing and all. his new videos are at the bottom. Off-Grid Hydroponics Experiment – The Kratky Method & Floating Raft Hydroponics Floating Raft Hydroponics Update Dec 2012 Easy Hydroponics […]
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