Nute burns vs Paotassium def case

[leftmyth]

Hello!

I have a question concerning my Auto Assassin, she is already 50 days old. Soil is (NPK-11:18:20). Soil PH -6,6-7. Went through Mg def, which looks fixed by watering with Epsom Salts.

The title of posts says it all, not sure if those leaf tips indicate nute burn or potassium def. It appeared couple of days, when I gave first watering with Hesi blooming nutes 1/8 of strength. (Around day 38 )
On the other hand, she is entering final flowering phase and humidity is quite low - both of that my lead to def. Red Stems could indicate that as well.
So, I`m quite confused - should I flush or treat with extra nutes.




+ I`m not sure what are those white dots on leaves (Last pics) some tiny mites or just dust particles.

 

[namvet25]

What are you feeding her? NPK numbers? I really don't see nute burn.You should be at 1/2 strength with your nutes at that stage.You also might be low on calcium.

 

[leftmyth]

I was giving Hesi TNT 1/4 complex during veg stage, and than gave 5 week 1/8 of Hesi Bloom Complex (NPK- 3-3-4) - than those problems with tips ocured, so I assumed that problem is nute burn, and two time gave only water.

So maybe give an extra watering with bloom nutes 1/2?

 

[namvet25]

Those numbers are pretty low,are they organic? You have to give them calcium and mag through out the grow.1/2 strength should be fine with your bloom nutes.

 

[leftmyth]

I think that Hesi is`not organic.

One thing that bothers me now - should I flush know for any case or that would be useless? And is it reasonable to water with nutes while medium is still half wet or should I wait till it`s truly dry. (I mean, what is worse - let plant wait and starve or risk overwatering)



P.S. Sorry for my English, not my mothers tongue.

 

[Gonzo]

1/8 strenght is not enough at day 38. Why did you go down? I do not know your soil, but if it was OK with 1/4, you should go to 1/3 and 1/2 or more with time, depending on plant.

I use Plagron Light Mix and use Hesi too. Hesi TNT is weak with P and K and I have recently started to substitute more and more TNT with Bloom when flowering starts. I make total exchange in 14 days period. I see less troubles with this method. And further, hesi bloom is quite weak when it comes to heavyflowering, so you add phosporus modestly last 14 days before plain water, which I use 5-7 days and it is fine, smoke tastes divine.

 

[Gonzo]

Hello!

I have a question concerning my Auto Assassin, she is already 50 days old. Soil is (NPK-11:18:20). Soil PH -6,6-7. Went through Mg def, which looks fixed by watering with Epsom Salts.

The title of posts says it all, not sure if those leaf tips indicate nute burn or potassium def. It appeared couple of days, when I gave first watering with Hesi blooming nutes 1/8 of strength. (Around day 38 )
On the other hand, she is entering final flowering phase and humidity is quite low - both of that my lead to def. Red Stems could indicate that as well.
So, I`m quite confused - should I flush or treat with extra nutes.

View attachment 335625 View attachment 335626 View attachment 335627 View attachment 335628


+ I`m not sure what are those white dots on leaves (Last pics) some tiny mites or just dust particles.

View attachment 335629

I see spots on leaves in my grows when too dry and hot and maybe lights too close. I think that curling leaves up at the top might be heat/light stress?

But overall, your plants look a little bit hungry, arent they? I think they might like a dose of nytrogen that they would get if you would have gone with higher nutes strenght in flowering. I guess that they had already eaten N in soil and are simply hungry.

And do not overwater, let it dry. Do not flush, no need for that.

If you come to a conclusion that you are underfeeding, than some feeding will maybe be good even if soil is not really ready to be watered.

 

[leftmyth]

I see spots on leaves in my grows when too dry and hot and maybe lights too close. I think that curling leaves up at the top might be heat/light stress?

But overall, your plants look a little bit hungry, aren`t they? I think they might like a dose of nitrogen that they would get if you would have gone with higher nutes strenght in flowering. I guess that they had already eaten N in soil and are simply hungry.

Well, my soil is 11:18:20. So there are dominant K, and in Bloom complex as well, so when i switched from TNT to Bloom a backed of a bit. After that small dose on Bloom appeared "burnt tips" - I assumed that it is nutrient burn which as it seems it wasn`t. So I went couple of times with plain water, but situation didn`t improve - I wasn`t sure - is that due to some left excess of nutes or some deficiency in progress

Thanks for a info, at least it made some things clear.

By the way - at what point you usually introduce TNT and at what dosage do you start?


P.S. Any ideas how get along Calcium Nitrate and Magnesium Sulfate Heptahydrate (Epsom salt)? i would like to give an extra MG + Calcium my new seedlings (maybe this starving girl as well), because those are in low level in soil and TNT.

 

[GCase]

It is a rare grow that does not have some bright leaf tips. Very experienced growers generally have their feed qt. down pat. But, different strains can be sensitive.

Just throwing this out, in my case it always goes back to a slight burn of unknown npk origin. Think any mobile nute will hit the tips. If the yellowing goes to brown and spreads within the leaves beyond a few local leaves = ph and subsequent lock out.

Now, I never feed more than 1/2 of the primary nutes and work up from about 1/4 dose at three weeks or so. Depends on the type of medium and nutes of course. Coco has helped control these issues for me. Soil taught me all about ph and lockout---lol.

Your plants are not in bad shape. Nam and the others advise and assistance is good.

 

[Gonzo]

Well, my soil is 11:18:20. So there are dominant K, and in Bloom complex as well, so when i switched from TNT to Bloom a backed of a bit. After that small dose on Bloom appeared "burnt tips" - I assumed that it is nutrient burn which as it seems it wasn`t. So I went couple of times with plain water, but situation didn`t improve - I wasn`t sure - is that due to some left excess of nutes or some deficiency in progress

Thanks for a info, at least it made some things clear.

By the way - at what point you usually introduce TNT and at what dosage do you start?

P.S. Any ideas how get along Calcium Nitrate and Magnesium Sulfate Heptahydrate (Epsom salt)? i would like to give an extra MG + Calcium my new seedlings (maybe this starving girl as well), because those are in low level in soil and TNT.

What comes in soil has been eaten long ago, I am afraid. Burnt tips might be eaten up tips?

You started to use Bloom with lower doses of N as TNT used before, and you had lowered the dose overall and your soil has been worn up every day and that is not all. Your plant needs more and more feed every day and instead of feeding her, you flush her. I really do not see anything else as underfeeding. If there is not something else around, that you do not describe and makes things go wrong. Your soil ph is ok. maybe water is out of range?

I start with 10% strenght TNT at day 14 in Plagron Light mix which is almost unfertilised, just to be sure. In richer soils it is hard to say if you do not try.

Epsom salts come later if necessary, in this very moment they will not benefit you at all.

If you find this might be true, start feeding, but your soil is now, after flushing, most likely heavy and wet for some time, so maybe some foliar feeding.

Good Luck!