Anyone guess?

Can anyone tell me why my lower leaves are turning yellow or if thats just natural 3 weeks into flowering. My pH seems to be in the 7 range every time i test the run off (soil). I'm also getter the 'hook' when the tips of the fan leaves hook downward. I read that was too much N so I cut back on nutes. Now people are telling me it looks like a P deficiency? I water every like 5 days and I dry her out pretty good. Also, The undergrowth is doing this weird thing where the leaves fold / cup under making a tube like form.

I did a flush and the hooking seems to be getting better from a week ago, EVERY fan leaf was doing it.

Any guesses?

bump...............

I'm no genious but that looks like it could be the start of a Potassium (K) deficiancy. Someone will speak up if i am wrong.

As an organic grower I suggest a tblsp of Epsom Salt in with every ferting, To me this plant looks deprived, I believe that when lower leaves are yellowing it is a sign of low nutes. The other thing could be Nute Lockout, the Epsom Salt will correct that.

TheTokingKing said:

As an organic grower I suggest a tblsp of Epsom Salt in with every ferting, To me this plant looks deprived, I believe that when lower leaves are yellowing it is a sign of low nutes. The other thing could be Nute Lockout, the Epsom Salt will correct that.

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Awesome thanks guys, +rep. I've been trying to add more P but my Tiger Bloom only has so much. Will molasses or some other nute help? I'll also try adding some Epsom Salt. 1tbsp per gallon of water?

Whoa dude...

Okay, you don't have the right answer yet. What you have is a micro-nutrient deficiency. Most likely it is Calcium and Magnesium.

If the leaves are way at the bottom, and the problem isn't getting worse, then don't trip at all. The leaves don't get enough light to matter much anyway. If the problem progresses it is because you are short on micro nutrients and you need a good supplement. More Tiger Bloom is 100% not the right answer.

Humboldt nutrients Sea Cal and Sea Mag, or Organicare Calplex and Huvega. Probably your best bets. You need to spend a good $40 or $50 for a liter of each but you'll have everything you need for dozens of plants.

Snow Crash said:

Whoa dude...

Okay, you don't have the right answer yet. What you have is a micro-nutrient deficiency. Most likely it is Calcium and Magnesium.

If the leaves are way at the bottom, and the problem isn't getting worse, then don't trip at all. The leaves don't get enough light to matter much anyway. If the problem progresses it is because you are short on micro nutrients and you need a good supplement. More Tiger Bloom is 100% not the right answer.

Humboldt nutrients Sea Cal and Sea Mag, or Organicare Calplex and Huvega. Probably your best bets. You need to spend a good $40 or $50 for a liter of each but you'll have everything you need for dozens of plants.

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Actually he did receive several good pieces of advice. He doesnt need to spend money like that when mother nature and/or other organic supplements can be used to do the very thing those chemicals you suggested will do. The key to a great grow is to keep it cheap and effective. Otherwise we would just continue buying it from someone that grows like I do.

Are you only testing the PH on the runoff? You should get a soil PH tester to be sure. You might be experiecing nute lock out due to PH.

If I had to make a diagnoses, I'd say its nute lockout. I think its particularly Magnesium deficiency. Problem is on the lower/older leaves. Also the veins of the leaves are still green.

Check your PH. If its in an acceptable range 6.5 -7.0 then you might try adding Epsom salt. Tbsp to gallon water.

You should try foliar feeding until you solve the problem.

Awesome. I'm going out tomorrow to buy a better pH tester and when I water I'll add the Epsom Salt. I've used it before, about 3-4 weeks into veg but I'm definitely thinking lockout because I don't think the plant is getting the nutes I've been feeding. It's just a weird thing because it's only effecting the fan leaves. All the undergrowth looks fine and green, but the leaves connected to the nodes closest to the stalk are doing that cupping thing. I'm going to try adding Epsom and then maybe some molasses, I heard it has P in it and it's good for flowering.

(When these pics were posted) Does my plant look pretty good (flower wise) for only a little over 3 weeks into 12/12? I started flowering on the 28th of Sept. but a week too early for her because of some issues. So I've been in 12/12 for 23 days but I'm really only counting 19 (counting the post day (I took the pics that day)) because the first week she was still vegging. She started to show signs of flowers on the 8th of this month so 13 days of actual flowering when I posted these pics. Today will be day 16 of actual flowering, and 26 days into 12/12.

TheTokingKing said:

Actually he did receive several good pieces of advice. He doesnt need to spend money like that when mother nature and/or other organic supplements can be used to do the very thing those chemicals you suggested will do. The key to a great grow is to keep it cheap and effective. Otherwise we would just continue buying it from someone that grows like I do.

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Not so much...

Dolomite lime would work too. I dunno why that didn't cross my mind.

Organicare and Humboldt Nutrients are organic smart guy. They aren't chemicals, like Botanicare's Cal-Mag.

The key to a great grow is doing it right and giving your plant what it wants.
LOL... The key is to be efficient.
When a single plant can easily yield 4 ounces how could anyone say that $50 on nutrients that would last you 12 plants is too much to ask for? I mean, $4 per plant, $1 per ounce, but I guess that's just totally insane to actually pay for by your standards?

I have no idea how your last statement fits in or has any real importance, but whatever man, your soap box.

Snow Crash said:

Not so much...

Dolomite lime would work too. I dunno why that didn't cross my mind.

Organicare and Humboldt Nutrients are organic smart guy. They aren't chemicals, like Botanicare's Cal-Mag.

The key to a great grow is doing it right and giving your plant what it wants.
LOL... The key is to be efficient.
When a single plant can easily yield 4 ounces how could anyone say that $50 on nutrients that would last you 12 plants is too much to ask for? I mean, $4 per plant, $1 per ounce, but I guess that's just totally insane to actually pay for by your standards?

I have no idea how your last statement fits in or has any real importance, but whatever man, your soap box.

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Not to start anything but you WERE the guys that came in here with an attitude lol