Guide to Nutrient Deficiency or Toxicity
- Thread starter nick17gar
- Start date
I'm starting to see why guys use the "Lucas Formula" ...to avoid nitrogen overuse right??
Roger A. Shrubber
Well-Known Member
those are classic overfeeding signs. dark green leaves and tip clawing are sure signs of N tox. tip burn can come from a number of things being too heavy.
what kind of pots are you using, what kind of medium, what strength are you feeding at?
what kind of pots are you using, what kind of medium, what strength are you feeding at?
Red square bottom Solo cups, 4" square pots and 1 gallon square pots...I use peatmoss/perlite...it procision advantage mix from roots..."soilless" does not come amended at all..I was doing anywhere from 1/4-1/2 tsp per gallon of foliage pro (Dyna Gro) balancing out the pH with protekt...hygrozyme to keep roots healthy...I had my Hanna meter I would never go over 350ppm and kept my pH always 6.2-6.6...I emailed Roots company to ask them just to be sure and they recommended pH for the mix I was using is 6.3-7.0
OneHitDone
Well-Known Member
One other consideration, aren't enzymes more of a clean up the roots occasionally/later kind of thing? Don't see why you would use enzymes that early on.
Thanks...I'll keep that in mindOne other consideration, aren't enzymes more of a clean up the roots occasionally/later kind of thing? Don't see why you would use enzymes that early on.
Go go n chill
Well-Known Member
I'm new to growing but I'd agree on the idea of just water till harvest. They may be cannibalizing their nutrients. Might be a little late in the game to worry about it
Calicode
Well-Known Member
Cool. Thanks bro
Go go n chill
Well-Known Member
Nice flowers
Calicode
Well-Known Member
Thanks bro. This is my first grow.
Go go n chill
Well-Known Member
Looking real good then!
John Levy
Member
Thanks for this information its helps me a lot in understanding my plantation. currently i am facing yellowing of leaves and some people are giving me advice that use phosphorous and potash solution but i think it is advisable to consult some cannabis dispensaries. but the information you put is healthy and useful
Thankyou
Thankyou
mista sativa
Well-Known Member
Can someone help me out? I’ve been reading trying to figure it out, and I think it’s calcium deficiency... or possibly the beginning stages of nitrogen burn. I use happy frog and Roots Organics Soil, mixed with about 25% coco with cork and 10% added perlite. Half a bag of worm castings. I added a small amount of blood and kelp meal. I fed the plant two ACT’s of kelp, fish emulsion, bat guano and blood meal the last two waterings. I feel like it’s cal-mag. LMK what you think. Btw it’s started spotting halfway up the plant. The initial one-pointed leaves are slightly burned on tips.
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Go go n chill
Well-Known Member
OMG Bro! They are gonna eat you alive on here.those pics suck. Lol
mista sativa
Well-Known Member
My bad. I’ll take pics outside tomorrow. Can you see what I mean in the first picture? Small brown spots. A little bit inside the edge of the leaf around the tips.
Go go n chill
Well-Known Member
Yes I can see it. I've never had that show up early in a grow. I'm not the best at fixing Sick plants so I'll bow out and listen
Roger A. Shrubber
Well-Known Member
pics in natural light would help, but...i'd say you do have a slight calcium deficiency, as well as maybe spider mites.
the coco you added to your soil may be sucking up some of your calcium, i think a good dose of cal mag to start with, then a small dose weekly ought to stop the spotting. also it seems like you may be slightly overfeeding, you put a good amount of stuff in your soil, then you fed them twice in a row on top of that.
i say spider mites because some of your leaves seem to have damage that's consistent with mites, but its hard to say in that light
the coco you added to your soil may be sucking up some of your calcium, i think a good dose of cal mag to start with, then a small dose weekly ought to stop the spotting. also it seems like you may be slightly overfeeding, you put a good amount of stuff in your soil, then you fed them twice in a row on top of that.
i say spider mites because some of your leaves seem to have damage that's consistent with mites, but its hard to say in that light
Go go n chill
Well-Known Member
i think you just
"Loved them too much" just give them water for a week or so. They are young and should not need anything right now. I had to give my2cents