New Grower Need an experienced grower advise please.

[Cannabiskollektivet]

Also noticed this spotting on one of the leafs... Any ideas?

 

[low_and_slow]

Looks like a phosphorous problem in that last picture, the rust spots, light color, and purple petioles are what I'm looking at.

 

[Cannabiskollektivet]

Looks like a phosphorous problem in that last picture, the rust spots, light color, and purple petioles are what I'm looking at.

Ok, thanks. Sorry for busting your balls so much regarding this... Are the others pictures enough to determine the problem or should I take more?

 

[Olderfart]

Also noticed this spotting on one of the leafs... Any ideas? View attachment 1284782

Is this just on one leaf? Could it be water damage?

Otherwise, what @low_and_slow said, maybe phosphorus, but I am too new at this to tell for sure. However, given your medium and nutes, more likely to be too much of something else than too little P. Throwing more P at it might just make things worse. I would just hang in there to see what the next batch of runoff says about EC before making a decision on what to do next.

Keep us posted, and don't worry about busting anyone's balls. If we can help, we will.

 

[Cannabiskollektivet]

UPDATE!

Gave my ladies the first nutrient feed in a while today.

IN
Water/PH: 2,5L - 6.4
EC: 1.6
PPM: 835
Nutrients: 5ml micro, 5ml bloom, 2,5ml, calmag, 5ml protector, 0,1g H.D Bloom

RUNO
PH: 5.7
EC: 2.2
PPM: 1092

Its alot better then before, what do you guys think? @Arthur @low_and_slow @Olderfart

Peace! :smoking:

 

[Olderfart]

UPDATE!

Gave my ladies the first nutrient feed in a while today.

IN
Water/PH: 2,5L - 6.4
EC: 1.6
PPM: 835
Nutrients: 5ml micro, 5ml bloom, 2,5ml, calmag, 5ml protector, 0,1g H.D Bloom

RUNO
PH: 5.7
EC: 2.2
PPM: 1092

Its alot better then before, what do you guys think? @Arthur @low_and_slow @Olderfart

Peace! :smoking:

I still think you are high on input and output EC. Your runoff suggests that EC in your soil is well over 2.0, which I think is a recipe for lockout. As I mentioned earlier, if it were my grow, I would try to get runoff EC down to at least 1.0 to 1.2, and then fertigate with ~1.0 EC for a week or so to see how they respond.

Just my noob two cents though, take it as you wish. I expect that lots of peeps here might disagree...

Good luck with it, and keep us posted.

 

[low_and_slow]

Can you explain in detail why you're adding supplemental calcium and magnesium at this point?

 

[Cannabiskollektivet]

Can you explain in detail why you're adding supplemental calcium and magnesium at this point?

I'm just following the recommended feeding schedual from the nutrient manufacturer, but at half strenght, and the guys at my local hydrostore. Hopefully I can answer it in detail when I have few more grows under my belt.

Was it a bad move tho?

 

[low_and_slow]

If you can't explain why you're adding something to the plant, you really really shouldn't.

At this stage, I fear you're just taking the advice of random strangers instead of trying to learn for yourself how plants grow and what their fertilizer needs are.

You're using four different products on a plant with problems, and you don't have an explanation for why.


You should be using one product only, a base fertilizer with a balanced NPK ratio, at extremely low concentration due to your insanely high runoff EC.

 

[low_and_slow]

A word on Nutrients

Tutorial - A word on Nutrients

The proper use of “salt” based fertilizer to grow Auto Flowering Cannabis. Salts: Natural and man made any chemical compound formed from the reaction of an acid with a base, with all or part of the hydrogen of the acid replaced by a metal or other cation. Learning how to use salt based...

www.autoflower.org