Originally Posted by supergator
I am going to be growing in soil in 4 1/2 gallon containers. I will be choosing a strain in which I can grow them up to 5' or 6'.
I own the indoor bible by jorge cervantes and I am pretty confident with everything I am doing up to this point.
I want to be able to grow between 7-9 plants as efficiently as possible. I have all supplies except for the light(s). Instead of using one 600 watt I might end up getting two 400 watt grow lights.?
I know I can grow 9 plants under one 600 watt hps/mh that are capable of gettin 6', I am just not sure if they will reach that height being under one light and if I would be better off only growing six that would yeild more in the end.
Thanks for your replies so far
You need to have as close to 50,000 lumens per/sq foot on the top of your plants. The lumens lessen as the plant tops are further and further from the bulb in a diagonal distance.
That's why I use two lights. A 400 watt is best at about 18 inches from the plant tops. If I put it there, it's only good to about a 2.5 x 2.5 area with max lumens. By using two 430's in a 3.5 x 5.5 area, I've calculated that I have just over 50,000 lumens on ALL parts of my grow.
One sure way to prove this to yourself is to go ahead and use the one light on this crop. You'll see exactly how the plants react to that amount of light. The center will be the best and as you go outward from the center, the plants will grow less and the buds after flowering will be smaller and less dense the further from the light they are. It will be very obvious to you.
Good luck to you man! The best teacher is experience. After your first grow, you'll have learned a hell of a lot. We all did.