Medical Marijuana Growing

OK where to begin. Basically I am banging my head against the wall with nutes. The last grow I ended up putting in to much nitrogen. On a previous grow I ended up putting in to much bloom. Now I think I am not putting in enough nutes.

I am/was using Bio-bizz veg, bloom and topmax. I’ve also changed my soil to Bio-bizz light mix on this Satori. I did originally start it off in a cheap potting compost from my local garden centre which although I didn’t know what kind of nutes were in there I believe there was enough to feed for 3-4 weeks. That I started in a UK rated 6 inch pot. I’ve since potted up into the final home using the light mix which states it has a ph of 6.2 and e.c. of 1.2.

As for nutes I’ve only fed the plant 3 times. All 3 times were in flower and I started at 1ml bloom and topmax to 2ltr of water and then upped it to 2ml to 2ltr of water on the next 2 feeds. No veg nutes added because she looks as if she doesn‘t need it plus like I said I seem to over do it with the veg nutes. I give the plants 1 plain water in between each feed. Actually when I have said I feed 2ml to 2ltr of water that is not actually true as I give the plants about ½ a litre of plain water before adding the nuted solution. After I add the nuted solution I add about another ½ litre of plain water just to top the pot off and make sure the soil has had a good soak. So in all fairness I am actually giving the plant 3 litres of water with just the 2ml of nutes. This should be well below what Bio-bizz recommend yet I still seem to get this burning.

Is it that they aren’t getting enough phosphorus? If so I assume I just up what I am feeding them. This weekend I’ve just gave them a plain water feed because my main thought was they were burning up. Since being back at work today I am starting to change my mind after speaking to my mate. He thinks I need to up my doses.

First pic was taken last weekend and then the following 2 pics were taken this weekend just gone.

wow, that looks like a hardcore nute lock! holy cow!! that is definitely hardcore! i know the ph says it's supposed to be something, but have you checked it?

I'd have to lean that way too bro.Have ya flushed them good?
Also i'm not too familiar with those nutes,but do they have Micro's and Marco's in them?
Or maybe the soil used had some?

They sure do look locked out.Do ya have a PH meter?

I would give the runoff a check just to be sure,cause if it's not PH lockout,then ya got some serious nute issues going on bro..

One more thing,,can we maybe got some close ups of the leave's? Clear ones now...


Mr.O

Looks to me like you need to switch nutes. fuck man i use fuckin miracle grow until the 4th week and dont have any probs. then i switch to my own mix of beastie bloomz, molasses epsom and other various things.

there is nothing wrong with bio bizz. let us remember one thing. it is dutch made, and manufactured specifically for growing weed. they are good nutes. that's why i say it's gotta be either a ph issue or a severe nute lock, or both!

Biobizz is supposed to be organic nutes from what I keep reading. This is what is said on the side of each bottle.

Grow:

Nitrogen = 8%
- Ammonium N (NH4) = 4%
- Nitrate (NO3) = 4%

Phosphorus (P2O5) = 2%

Potassium (K2O) = 6%


Bloom:

Nitrogen = 2%
- Ammonium = 0.9%
- Nitrate = 1.1%

Phosphorus = 6%
Potassium = 3.5%


Topmax:

Nitrogen = 0.1%
Phosphorus = 0.01%
Potassium = 0.1%

FE (Iron) = 0.009%
MN (Manganese) = 0.001%
ZN (Zinc) = 0.004%
B (boron) = 0.011%
CU (Copper) = 0.001%


I know Biobizz doesn’t contain Magnesium so I compensate that with a pinch of epsom salts in about the 2nd and possibly 3rd week of flower. This is the best schedule I could find. If you can't read it then there is a PDF version here: http://www.gchydro.com/pdf/biobizz.pdf. You'll need Adobe Reader to open it but at least you can zoom in to read it better. Even I struggled to read this one:





If I am going by the schedule even in flower I am well under their recommended doses. Even going by their All-mix soil which as I understand it is supposed to be hot. They say for bloom 1ml per 1 litre of water in week 1 of flower. Then 2ml per 1 litre of water in weeks 2 and 3 of flower. Then 3ml per 1 litre of water for 4 and 5 weeks of flower.

I am only on 2ml per 2 litre at the 4th week of flower. Not only that I am adding ½ a litre of water to the plant before mixing my nutes to give the plant a drink first. Then after adding the nuted solution I top off with another ½ litre of plan water to make sure the soil has had a good soak. The soil is drying out enough to be able to give a plain water once in between each feed. So all in all I am actually giving the plants 2ml of bloom to 3 litres of water. I'm adding Topmax to the nutes but have decided to leave out the grow on this one because of me keep burning the plants.

I hope these close ups are good enough for you Mr O:













I've used my cheap and I mean cheap ph probe to test the soil. It's a light, moisture and ph probe. It is reading high end of 6 or just below 7 which ever way you want to look at it.

ferts are too strong IMO.

what is youre soil mix you are using? what are your ph numbers of your solution before you water with it?

Hey bro,
The pix are exellent,and very helpful.
I read over the breakdown on the nutes your using,(also helpful),and although I am as curious as CT is about the PH of the nute solution after it has been mixed and allowed to sit a bit.I always like to allow the mixed nute solution to sit after mixing for atleast 10 minutes before I test PH.It just seems to give me a more accurate reading once everything has had a chance to settle.

Things I don't see that are normally associated with PH lock out,first and foremost,is spotting,I see none.In all the pix ya posted I only see 1 which has any spotting,and it looks more like material decay to me from the dried out leaf than PH spotting.I has been my experience with PH lock-out,that there is most always spotting as a result.

So I'm thinking more alone the lines of a nute problem than PH after seeing the pix.Could be nute burn,but,,,and I might be going out on a limb here of sorts,but,,again it is my opinion that it looks more to me like your plant is "P" deficient..It has all the classic signs for me..The even discoloring from the leaf tip inward,the curling up of the leaf tip.


Looking over the nutes you use,the breakdown of thier properties also leaves to to think that at this stage in development,it is too low in P and K,but more so P.

I would flush very well,3 times the amount of water as the size of the pot,incase there is some PH lock out,can't hurt anything.The I would go back with 1/2 strength nutes,and add a little something to bring up the "P".

The Epsom you are giving won't hurt anything cause as you mentioned your nutes have none..But I realy don't think that Mag. is the problem.I also mentioned Micros and Marcos,and I notice that there is none in the nutes,only in the "Top Max",you might want to increase the dose of this a little also,maybe by 1/2.

Well there ya go bro..I have stepped out on this limb,and I'll stand by it..It will take a little time to see some recovery,I'd take off the already dried out portion of the leaves,just cut it off with some sterile sissors,and leave whats still green.You should be able to tell if the problem is correcting by new symptoms or lack of in the plant by the other leaves that have not been affected.Keep a close eye on her,and I hope she turns around for ya bro..

I'll be sitting out here on the limb I have walked out on and waiting to see how things go !


Mr.O

I think that's an excellent diagnosis mr O. Good point about the lack of spots. It makes sense jobby you have been extra careful not to burn. Maybe a little too careful? It makes sense as the bud it self and surrounding leaves look ok but the fans are bad off. Its sucking the n from the leaves to compensate.