Hey, guys I just started my first indoor grow and I am experiencing nutrient issues with my plants. They are about 4-5 weeks old and the leaves are turning yellow at the bottom and getting brownish spots on the leaves. I thought I had a nitrogen deficiency, however, I used Fox Farms veg fertilizer which has a NPK of 6-4-4 and the problem is not going away whatsoever. I have the plants in Fox Farms soil with peat moss on top. So my question is what could be causing this problem (nutrients, pH, lighting, fans, etc.). I have attached pictures to see if any of you can help me resolve this issue.
Looks like nutrient burn to me. Plant may be too young for fertilizers? Anyhow, the best way to grow weed is to just keep things simple, down to the very essential basics. You pretty much want to be emulating nature as much as possible.
Ok thanks. I'm gonna just flush them and hope for the best. If things don't get better I'll just ask again.
You should check out the cultivation section. Lots of info in there if you take the time to read. Sent from my HUAWEI Y536A1 using Grasscity Forum mobile app