Help with deficiency ID...

[tropicanna]

What type of deficiency does this look like?

Alleged Mozambiquen Poison and Johnny Blaze X Chem Dawg.

The JB X CD is already showing some stigmas on bud sites, the MP is still a bit behind but they are both showing some liming in the lower leaves and one or two yellowed leaves.
So far they've been fed vermicopost, guano, triple super phosphate, potassium sulfate and micronutes.
I was running out of KSO4 and purchased a bucket of water soluble 8-15-36 ,calcium nitrate and epsom salts for flowering but since I don't own a pH/EC meter I am worried I might mess them up.

Thanks for your help...

 

[MJPassion]

You spent all that money on nutes & didn't get a pH meter?

Go get a pH meter. Not that you necessarily need one but it will improve your learning curve for diagnosing ailments you may encounter. Also... I think most issues with nutrient uptake begin with proper medium pH.

 

[tropicanna]

what do you mean by all that money? I spent 35 bucks total, these are not cannabis marketed brands … besides,hanna's cheapest pH tester costs more than that and it doesn't include any of the necessary solutions, plus the resolution and accuracy are crap. If I were to spend money on a decent tester, perhaps one that also measures EC I would have to shed about $230 including calibration, cleaning and electrode storage solutions, unfortunately my budget is a bit tight. Besides, pH testers don't determine deficiencies, so if the pH is on point and the EC of your nutrient solution is adequate you can just as easily burn your plants if they have plenty of a specific macronutrient.

 

[Mikell]

You can figure out EC roughly with a lot of math if you know water quality, or try something like hydrobuddy. If you mix up a batch of solution, a nearby grow store (if actually nearby) or nursery would probably test it for you.

You're going to be watering a hell of a lot with that potlant matter ratio. Definitely figure something out to at least have an idea of pH and EC.

 

[tropicanna]

The water quality at the present time is pretty questionable since we are going through a drought and water rationing, probably more reason to have a pH/EC meter.You're damn right about the watering…three to four times a day and its becoming a problem cause I can't be gone for long.To top it all off temps have been reaching 90 F and they seem to be staying there for the next week or so. They are sitting on 7.5 gal containers,I have one 15 gal container and thought about transplanting the JB X CD since its already flowering. I tried setting up an irrigation system but I like to oxygenate the water in a reservoir and it only holds 20 gal, there doesn't seem to be enough pressure to move the water to all the containers even when the reservoir is higher than the containers. Do you think that there would be an increase in yield that merits the upgrade or would it just help the watering issue?I could always use the extra 7 gal worth of medium for another plant.

 

[Mikell]

Potentially make it worse re:dense rootbound medium surrounded by looser, wetter medium with few roots. I haven't had much luck up-potting in flower and it sounds like you have better candidates.

If you can't figure out a way to raise the reservoir, a pump and timer may be the solution. Scraphounding would keep cost under 20-30. Manifolds are good for evening out pressure.

 

[theHIGHlander]

Flush that mofo..get ya self a ec meter ...what 50bucks..and just get ph strips from the fish store ( they cost next to nothing) ...mix up a fresh batch of nutes and recharge the medium....

Good luck

Keep it green
Highlander

 

[MickFoster]

GH makes a 6 dollar ph kit - using 3 drops in a vial and comparing color on a chart to determine ph. Cheap, simple, and very accurate.

 

[snuggles]

...but since I don't own a pH/EC meter I am worried I might mess them up.

and exactly that will happen. so get a meter, others already mentioned the cheap solutions available.

also the pot the plant is in looks kinda small. in the future i'd upscale and give the plant more medium to live in.

best of luck

 

[tropicanna]

In theory I could, but she would've stretched more and I don't want the top to be higher than the wall that divides my terrace and the next door neighbor, more so when he happens to work for law enforcement. Maybe as soon as they pass legislation I can hook him up with some nice shade by growing a forest along the wall.

 

[snuggles]

In theory I could, but she would've stretched more and I don't want the top to be higher than the wall that divides my terrace and the next door neighbor, more so when he happens to work for law enforcement. Maybe as soon as they pass legislation I can hook him up with some nice shade by growing a forest along the wall.

you could LST or top/fim the plants to avoid the stretch. lots of ways to keep them from getting too tall/big.

greets

 

[tropicanna]

they were both topped and lst'd from the very beginning , just look at trunks. I also need to save floor space, i've got more coming to flower and they will all sit along the wall.This was kind of a test to see how tall they would get . The rest are all in fabric bags, so root bounding will not be an issue. They've all got plenty of perlite and earthworms, aeration is optimal and i'm working on setting up irrigation so that I don't find myself under house arrest due to watering.

 

[theHIGHlander]

Your growing and the guy next door to you works for law enforcement...are you fucking mental or some thing..if your worried about height what the fuck you going to do to mask the smell....this is just asking for trouble....I can't get my head around this...I bet the cop is thinking is this dude for real..telling all his cop buddies that some1 is growing right next door........I hope I've picked you up wrong hear..if not I would pull it down before they come though your front door..


Keep it greeN
Highlander

 

[tropicanna]

there is nothing to fear but fear itself my friend...

 

[tropicanna]

I want to thank everyone for urging me to get the meters. I found the Chinese version of Milwaukee's pH meter for 16 bucks at a local hydro store. It is not the most accurate meter (+-.1) but it is definitely better than going at it blind.I keep my water in a reservoir just to oxygenate it with an air stone, the pH of the aerated water…8.3. Luckily for me the combination of fertilizers and supplements I've used have worked together to maintain a good buffer where the most extreme effects I've had so far were only very slight upward curling of the fan leaf tips and tip burn that is almost unnoticeable.I happen to be more fond of granular ferts due to this, the rates of change are much less profound when it comes screw-ups.I tend to treat granular as salts in the sense that I dissolve them as much as possible before applying and I use the less is more approach. I found a lot of valuable info online about pH drift and medium/inputs interaction that I will create a thread regarding the topic.I also got me some KSO4,Bragg's Liquid Aminos and molasses to keep my bitches horny...

 

[tropicanna]

I want to thank everyone for urging me to get the meters. I found the Chinese version of Milwaukee's pH meter for 16 bucks at a local hydro store. It is not the most accurate meter (+-.1) but it is definitely better than going at it blind.I keep my water in a reservoir just to oxygenate it with an air stone, the pH of the aerated water…8.3. Luckily for me the combination of fertilizers and supplements I've used have worked together to maintain a good buffer where the most extreme effects I've had so far were only very slight upward curling of the fan leaf tips and tip burn that is almost unnoticeable.I happen to be more fond of granular ferts due to this, the rates of change are much less profound when it comes screw-ups.I tend to treat granular as salts in the sense that I dissolve them as much as possible before applying and I use the less is more approach. I found a lot of valuable info online about pH drift and medium/inputs interaction that I will create a thread regarding the topic.I also got me some KSO4,Bragg's Liquid Aminos and molasses to keep my bitches horny...

 

[Siever]

Tropicana,

Your less is more approach towards nutrients is very good! I grow in soil and once everybody I know who is into growing also told me to buy something to measure PH, so I bought the PH strips from General Hydroponics only to find out my PH was always perfect. Of course I grow in soil, which has a PH buffer. If you go hydroponics a PH pen is a must!
About the deficiencies: I noticed that the yellow leaves are in the middle of the plant. I just went searching for it & I found out that only two elements cause yellow leaves in the middle of the plant: S(ulfur) & Mo (=Molybdenum).
Since you give KSO4 I find it hard to believe the plants lack S. On the other hand, I have never heard or witnessed a Molybdenum deficiency.
Too much of an element can cause a deficiency as well. Perhaps you gave too much Sulfur. That seems the most logical to me. I hope this helps.

Siever

 

[tropicanna]

let me pose this question…upon observation of hundreds of photos on the interwebs it seems like some people manage to keep a plant green from top to bottom during veg.Is it possible to maintain the plant green from top to bottom throughout flowering or is leaf senescence inevitable at some point. I know that for a smooth finish is ideal to have the plant cannibalize itself near the end of its cycle, but when does this process become totally acceptable?

 

[stoned-trout]

yeehaw

 

[Siever]

Pure sativa's always cannibalize themselves during flowering, so for those strains it's always acceptable. I don't have much experience with indica's, but some strains do this as well but in a less dramatic way. At harvest time they still have most of their leaves.
If you lose leaves during veg, I think it can be because of not enough light for the lower leaves, nutrient deficiency or nutrient burn. Perhaps there other reasons, but I don't know them.

Siever