Sulphur (S) deficiency:
The initial symptoms are the yellowing of the entire leaf including veins usually starting with the younger leaves. Leaf tips may yellow and curl downward. Sulfur deficiencies are light green fruit or younger leaves with a lack of succulence. Elongated roots and woody stem. Although it's hard to see in figure 19, the upper stems of this plant are purple. Although many varieties of cannabis do get purplish stems, the trait generally extends the entire length of the plant's stem, and not just near the top as in this specimen.
this is what i found in the grow faq's
Ok i am not a newb just a little out of practice. I am growing urple,blueberry hash plant,& white widow X mango. My ph is 5.8-6.3 TDS 800 on city water with a TDS of 300, my rez temp runs at 65*F the room temp 75 day 24-7 light one week out of cloner. Am i lacking in nitrogen or ?????? Any help would be nice THANKS
