flooding? as in flooding the bed so as to submerge the roots entirely? and then my next question - flooding every 3 hours during light cycle, is it the same in veg (18-6) and budding (12-12)? thanks for all the help! Also is it critical to have 2 hps or can it just be 1? atm i realli only have enuf space to experiment with 2 lights and i would prefer to use 1 of the lights to veg and 1 for budding that way i break down the cycle into a 2 cycle, less wait time =)
Yes you will have to flood the bed (tray table) so that the roots get nutrient solution in order to propel the growth of the plants. Make sure that you include air stones in your res to oxygenate the water. This will also improve growth as well. You may also want to add 35% hydrogen peroxide to the water before adding your nutrients & ph.
Yes you will only flood every 3 hours during the light cycle. Some growers flood 1 time during the night cycle as well. In Veg you can keep the same schedule or flood every 4 hours. Keep in mind that every plant is different as well. If you see the plants are getting over watered then lower the schedule.
With lighting for a 4 x 8 table I would do 2 600s, 3 600s or 2 1000 watt hps lamps. Do not attempt this grow with 1. Youll be wasting your time. To tell you the truth if your attempting sog then go straight from clone right into flower. You can veg for 7-10 days if need be but any longer youll have a jungle.
Take a look at the pic below. This grower has 161 pots in a 4 x 8 in 5x5 square pots. He uses 2 600 watt hps lamps on a light mover. The yield is 3lbs 10oz dry weight every harvest. There are some commercial strains that will average more. Imagine putting two 1000s on the 4x8 or having 2400 watts with two 4x8 tables. 1200 to each table. thats 7lbs per harvest.