Certainly not beyond the pale-

I used to foliar feed w/ calcium nitrate- you could see a differance at one end of the room by the time you finished the other.

Admittedly, it was a big room.

Wasn't Fe chlorosis, was it? That'll green up in minutes, properly treated.
rhizome Reviewed by rhizome on . Nitrogen difference in 12 hours? I thought my plants were looking a little lime green the other day, so I took a closer look. I believe what I was mistaking for nute burn was actually a nitrogen deficiency. Everything I read is that one symptom is light colored leaves. Another is leave tips and edges yellowing and dying, which is also one symptom of nutrient overload. Another symptom is slow growth, which I definitely was beginning to wonder about lately. Iā??ve been using Grow Big, Liquid Karma, SubCulture and SuperThrive. Rating: 5