Hello O' Wise Forum Friends! I decided it was time to take the plunge and try to grow my own...both for the fun of it and to stop paying the dispensary prices on at least some of my medicine. I started to germinate 10 seeds of Ed Rosenthals Super Bud on 12/12/12. I planted them in a soil medium after soaking the 10 seeds for about 8 hours in a cup of water and 9 of them are "alive". I am growing under a 400 MH and have moved them to 5 gallon smart pots. I am managing my temperature in the grow room to about 75 degrees, but it likely gets a little cooler when I have the lights off. I have the lights on for 20 hours and off for 4 hours to give them a little rest (I read the debates). Here I am on the 4th of January with a few plants looking pretty healthy and some of them looking badly burnt. I did use some organic fertilizer at a level lower then the recommended levels after about 2 weeks above ground. I have a feeling it might be nute burn... on the other hand, I had my light about 14" away from the plants and the plants directly under the light seem to have suffered a whole lot more than the plants on the outside, so I am also wondering if it is some form of IR light burn or something. Really... I don't know. I am hoping the group can help me solve this before I switch over to 12/12. I am growing in a 60" tall tent, so I think I have about 8" of growth on the ERSB before I switch them, assuming 125% - 150% during the budding phase. THANKS ALL!!!
It's one or the other, but sounds like lights based on what you said. If it was nutes would it not have affected all of the plants? I am not a HID guy, but there are charts floating around that specify light distance based on wattage you could use as a reference, but one obvious thing to try would be backing the lights off an inch or 2. If it's nutes, I think most people would suggest flushing the affected plants.
Added pictures to my post...hope it helps determine right action. I backed lights off about 6 inches as a starting point.
Mine did that after transplanting. Think it was the shock that did it. Usually TP goes good but last time meh. Just water only for awhile and they should perk up. hth
