Help please!! Nutrient DEf?!

[Blunts.]

Hello,

I switched to organic when i switched my plants over to flowering and immediately have some deficient looking plants. I am having trouble deciding between potassium, calcium, or magnesium deficient. Been feeding a compost tea solution at 6.5-6.8 ph. I think the solution is pretty weak being that I compared the n:k of my syntehtics to the organics i used and they are like 300 times as weak, such as 6% k vs .02% k. Attached are some pis of the deficiency. Let me know what you guys think and thank you in advance!

 

[Cali MedPatient]

I'm no deficiency expert, but we definitlely need some more info.

What medium are you growing in (coco, potting soil, soiless, rockwool, etc)

If using soil, did you amend it at all and what brand?

Are you using any nutes or just the teas?

Did you make the teas yourself, or buy them? Tell us about ingredients or brands.

What light do you have over them?

Just going on assumption here, but if all you're feeding them is weak compost teas, and they aren't in a rich potting soil, then that's your problem and you need to start feeding them more. 6.5-6.8 might be a little high, but it depends on the medium, and cal/mag issues are super common. Give us a little more info and someone will be able to help you out. In fact, I'm sure there are a few here who can call it just from the pics.

 

[Blunts.]

Thanks for the Response Cali

More info: Growing in a mix of potting and compost from my compost facility at about a 6:4 ration potting to compost. I also added more perlite for structure. I am feeding with a home brewed tea. It contains
4 Cups: Organic Compost
2 Cups: Worm Castings
1 Cup: Bat Guano
1 Cup: Sea Bird Guano
1 1/2 Cups: Sea Plex (Seaweed)
1 Cup: Humex (Humic Acid)
1 Cup: Fulvex (Fulvic Acid)
6 oz (1/2 Jar) Unsulferized Molasses

per 15 gallons of water

I am flowering under 2 hps lights at about 750 watts each.

Im going to assume that i need to start feedin them more as well. Thanks agian!!

 

[Blunts.]

What organic nutes (concentrated) would you suggest i start using?

 

[SeaMaiden]

I'd like to see more whole plant photos, not just close-ups of the problem areas. I see two possible issues, K-, and light burn or Ca-. The leaf that's showing what resembles Ca- appears to be too low on the plant for it to be Ca-.

You actually don't need those super-high numbers to feed well, either.

 

[Hank Hemp]

listen

listen

I'd like to see more whole plant photos, not just close-ups of the problem areas. I see two possible issues, K-, and light burn or Ca-. The leaf that's showing what resembles Ca- appears to be too low on the plant for it to be Ca-.

You actually don't need those super-high numbers to feed well, either.

less see whole plant pics.

 

[Avinash.miles]

doesnt look like CA def to me, they are usually round brwn spots not big brown intervein lines like that....
more pics if u want the help bro.

age old organic nutes are good, i like the veg or bloom and sea kelp product together, ime

 

[Blunts.]

I'd like to see more whole plant photos, not just close-ups of the problem areas. I see two possible issues, K-, and light burn or Ca-. The leaf that's showing what resembles Ca- appears to be too low on the plant for it to be Ca-.

You actually don't need those super-high numbers to feed well, either.

Ill take some better pics when the ladies turn back on. How do you feed well without super-high numbers? Just more often?

 

[Blunts.]

More Pics!!!

So I think there are two notable deficiencies. One i believe is Potassium deficiency. It starts with older growth which develops necrotic spots along the tips and margins and becomes yellow. The tips seem to be curling up? The other deficiency Im not quite sure. It seems like it effects new growth first and forms dark spots along the margins. I also should prob add this as a side note- Before I put them on organics I flushed them and then left for 3 days so im sure they were already hungry, which means they are probably deficient in most nutrients . One more thing, I was worried that my soils ppm was too high, I tried to roughly measure it with my meter, so i wasnt sure If the nutrients were locked out because of High salt concentrations.

Thanks again all! Hope this new info helped. Oh and im going to foliar spray them this morning before the lights turn on. Should I ph the spray or does that not matter because it gets through the stomata?

Oh and....Lol im done

 

[SeaMaiden]

Ill take some better pics when the ladies turn back on. How do you feed well without super-high numbers? Just more often?

No, I just feed them. I'm thinking maybe the differences in our perspectives has as much to do with the differences in our approaches as anything else. I'm fucking cheap, how about you? Since I am fucking cheap, even when I was using chem salt-based nutrients, like Floranova Bloom, I fed at a fraction of the recommended dosage. Now, IIRC FNB's NPK numbers are something like 4-8-7, which are not spectacularly high NPK numbers despite being a chem salt fertilizer. But, where most folks are pushing it even as high as 10mls/gal, I found I had to back off, and at one point I was running girls who couldn't tolerate any more than 2mls/gallon.

Can I explain why that is? Hell no! But I wish I could. I bet someone like Yosemite Sam could explain it, and probably explain it well.

More Pics!!!

So I think there are two notable deficiencies. One i believe is Potassium deficiency. It starts with older growth which develops necrotic spots along the tips and margins and becomes yellow. The tips seem to be curling up? The other deficiency Im not quite sure. It seems like it effects new growth first and forms dark spots along the margins. I also should prob add this as a side note- Before I put them on organics I flushed them and then left for 3 days so im sure they were already hungry, which means they are probably deficient in most nutrients . One more thing, I was worried that my soils ppm was too high, I tried to roughly measure it with my meter, so i wasnt sure If the nutrients were locked out because of High salt concentrations.

Thanks again all! Hope this new info helped. Oh and im going to foliar spray them this morning before the lights turn on. Should I ph the spray or does that not matter because it gets through the stomata?

Oh and....Lol im done

Ok, I'm looking at those pix, and I'm looking at your soil mix, and I think it's just a K-. I think perhaps you might want to try giving a foliar of seaweed. I also think that for next time you might want to add in some minerals, greensand and that sort of thing.

I don't bother pHing foliars of anything. I may be doing it completely wrong.

 

[bigshrimp]

I agree that a foliar would be the way to go if you feel like you have to do something, but my advise would be do nothing unless the plants continhe to get worse. Avoid adding more strong nutes to your soil and concentrate solely on building your soil microbes via act and etc topdress.