Zinc def.

[dusto2k3]

so I had some rooted clones and i put them into some canna coco. I have been handwatering 1xdaily complete watering.

My plants are getting what i see as a Zinc def. The growth has slowed, the leaves are real small and looks just like the pic of the problem here http://www.greenmanspage.com/guides/plant_abuse.html
Marijuana Plant Abuse

So I flushed with ph'ed water and then a light nute solution. #ml of a and 3 ml of B per gal, along with 2ml/g rhizo and 5ml/g cannazym. ph to 5.8.

My question is, where is the Zinc in the canna A+B. And what can I do to fix this. I checked the runoff and its 5.8 as well. ec .8

I use R/O and add arould 5ml/gal of calmag+

 

[Kosmo]

Cal-mag, iam sure has a good amount of zinc.

So stoned right now lol... good times

 

[Guest]

Watering freshly transplanted cuttings daily is a no no. Let the coco dry up a bit until the roots are nicely established in the medium. After a few days of scarce waterings, you can resume a daily feeding schedule.

 

[dusto2k3]

Ok, my inexperience with this medium begs this questions.

I had two bags of coco left over from a grow a while back. Surely after a couple of months, in the bag, the coco had dried out, so I re-wetted it with a light nute mix before planting them in there. Would this be the p[roblem since the coco dried out prior to use? Is coco no good once it goes dry?

I plan on repotting them in fresh coco today, as I have used this coco before and I didn't have these problems.

 

[ShroomDr]

if your worried about salt concentrations (because your old coco dried), just re-wet and flush it.

 

[dusto2k3]

i did flush it, yesterday, followed by a light nute sol. I will post a pic in a few hours.

 

[Kosmo]

A good rule of thump with coco, is to not plant or transplant into dry coco. ive done it a few times, but ran into deficiency's. so now i always suggest wetting the coco before planting or transplanting. Either a mix of Rhizotonic @6ml/l or just Tap water. But the plants seam to like the Rhizo feedings more then just plan tap.

Just my experience, trial and error and all that jazz

 

[dusto2k3]

More Info.

More Info.

OK, so here's a little more info and some pics. There are some that are a week older or so. This problem happened when I did this: Like 10 days or so maybe more, I transplanted them, then like 2 days later I put them under a 1000MH, yes...dumb, but i did it. First time with MH, wont do it again...but on with their life...So they were under the MH for about 2 days...these are the bigger ones in the middle top of this pic. They turned white almost, then started back green again after i put them back under floros. I thought this was the probem (the MH).

But these (below) are newer and were never hit by the MH, so i dont think its the light. There is some foliage burn on the bigger ones that was from the light. The only other thing they have in common is the coco and food. I used the same nutes last grow with no problem and this coco was sitting around from last grow. I wetted it with a rhizo solution when i transplanted. So any advicE?

 

[20kw dreams]

That is way to crazy to be a zinc deficiency bud. More then likely, you just gave them too much light before they could handle it, and/or the roots were not developed and you fried them by overwatering.

You may also want to think about what kind of shape your clones were in before you planted them. Were they healthy? Were the roots healthy? Were they showing signs of deficiencies? Rockwool is VERY easy to overwater.

Basically, this is what you should have done: Wait until your clones were pretty dry, or not wet at least, then planted them into moistened, flushed coco, then watered them in with a light feeding. Then let them sit for at least as long as it took between waterings before you transplanted.

Anyways, I would say the problem is in the health of your roots, and they are prob too far gone to be worth saving IF you have access to more clones.

Now, if you ABSOLUTELY DO NOT have access to more clones, or really can't afford them, they what you need to do it go get you a nice beneficial innoculant. Preferably this would be "rootshield", "piranha", or "T-harz". All of those have Trichoderma Harzianum, which is the most aggressive and fastest colonizing of the root fungi. Mychorhizzoa is also an excellent beneficial, and can are commonly found in a variety of additives. These kinds of beneficials work symbiotically with your plants roots, assisting them in resisting stress and disease.

I should warn you though, you can pay a small fortune for some of these beneficials, and it will still take them forever to recover.

Good luck

EDIT: Oh, I just noticed they were in little compost plugs. That changes everything, and I don't know how the hell you would have overwatered them I could see them having dried out on you, but it's pretty hard to overwater those plugs. Did you say you transplanted into dry medium? That could have done it. Either way, it's your roots or that light for sure, and not really a zinc deficiency, although it may look like one. It's actually the roots not beinmg able to transport something properly, or the light just bleached the leaves out.

EDIT 2 - yeah, I've definitely done that to clones when I put them under 2 big a light when the roots weren't developed enough to sustain the transpiration.

 

[stinkyattic]

Hey D, from both my own experience with the medium, and anecdotally, coco gets 'weird' when it's allowed to dry out fully after it has already been watered with a nute solution. I can't explain this, and neither can the guy at the shop, but I've seen exactly that happen with my own eyes.
Foliar feed with your micro (GH Micro has significant N in it too; I'd use that if you've got it, if not, a drop of superthrive to whatever you've got will give you the N you need) to slow the damage, and the addition of a mycorrhizal inoculant is an excellent suggestion.
I like to plant newish clones into a medium far lighter than the one I'd otherwise use simply because stuff like this DOES happen and any soil problems you'll see are compounded by too-high water retention. If you don't want to add a lightener to your coco, what about switching to long-fiber for your new clones at least?