I have had two plants in a room with a 250 watt hps light on 12/12 for about 4 weeks now. one plants larger leaves are starting to yellow and fall off and the upper stems of the leaves are turning a slight dark purple. sounds like a nitrogen deficiency to me. This is my second grow and I had encountered the same problem last time but never treated it and ended up with a small amount of mold on the buds. I am using shultz concentrated fertilizer 10-15-10. should i be using something different during the flowering stage? Any advice?
natel628 Reviewed by natel628 on . nitrogen deficiency help! I have had two plants in a room with a 250 watt hps light on 12/12 for about 4 weeks now. one plants larger leaves are starting to yellow and fall off and the upper stems of the leaves are turning a slight dark purple. sounds like a nitrogen deficiency to me. This is my second grow and I had encountered the same problem last time but never treated it and ended up with a small amount of mold on the buds. I am using shultz concentrated fertilizer 10-15-10. should i be using something different Rating: 5