Def VS Excess situation

[Mar1799]

Hi, this not my first grow, but been wondering whole day, is this some P or K excess or deficiency?
They are autos, 5 weeks old.

Grown in soil.
Use Plagron light mix, and Plagron fertilizer. Started @ 2 week 25%. Now 65% of indicated strenght.

 

[go go kid]

grown in what??

 

[Mar1799]

grown in what??

sorry, it`s soil.

 

[go go kid]

at five weeks without extra feeding, i would say a deff, have you been feeding them or not?

 

[Mar1799]

at five weeks without extra feeding, i would say a deff, have you been feeding them or not?

I started feeding in second week with Plagron Grow (`25%), then at 4 switched to Bloom. Now dosage at 65%.

 

[go go kid]

what kind of soil are we talking about? with soil, it should last you anyware between 4 and 6 weeks b4 you need to start feeding

 

[Mar1799]

what kind of soil are we talking about? with soil, it should last you anyware between 4 and 6 weeks b4 you need to start feeding

Its from Plagron as well. Very low with nutes, they even recommend to start feeding at week 2.

 

[go go kid]

im not familiar with that type of soil, so i wont be much help to you, dont worry, someone will be along shortly. good luck with it and wellcome to rollitup

 

[Mar1799]

im not familiar with that type of soil, so i wont be much help to you, dont worry, someone will be along shortly. good luck with it and wellcome to rollitup

Thanks anyway!

 

[Mar1799]

Hi guys, maybe someone else has any idea?
I `m a bit perplexed - should I flush or ad extra nutes. Tricky

Hope pics are ok, I can take some more if that helps.

 

[myke]

At first glance looks like Mg deficiency,yellowing between green veins.
Epsom salt is a cheap source of magnesium.

 

[Mar1799]

At first glance looks like Mg deficiency,yellowing between green veins.
Epsom salt is a cheap source of magnesium.

Forgot to mention. I am adding half teaspon of mollases per liter every watering. But maybe that is not enough.

 

[myke]

Forgot to mention. I am adding half teaspon of mollases per liter every watering. But maybe that is not enough.

That will drop pH,blocking Mg.

 

[Tangerine_]

Forgot to mention. I am adding half teaspon of mollases per liter every watering. But maybe that is not enough.

Thats likely your problem. Stop the molasses. It causes a lot issues in the rootzone. Its only benefit is as a food source when brewing AACTs and even then in very low amounts.

Mag washes out easily and locks up with a low pH. Epsom salt at 1tsp/gal. Foliar for a quicker response but you can add it to your nutrient solution as well.

 

[Mar1799]

Thats likely your problem. Stop the molasses. It causes a lot issues in the rootzone. Its only benefit is as a food source when brewing AACTs and even then in very low amounts.

Mag washes out easily and locks up with a low pH. Epsom salt at 1tsp/gal. Foliar for a quicker response but you can add it to your nutrient solution as well.

Ouch, and I wanted to ad extra Mg by adding molasses.

tsp= teaspoon, not tablespoon, right?

 

[Tangerine_]

Ouch, and I wanted to ad extra Mg by adding molasses.

tsp= teaspoon, not tablespoon, right?

Yep.
tsp=teaspoon or 5ml
tbls = tablespoon or 15ml

 

[hotrodharley]

Hi guys, maybe someone else has any idea?
I `m a bit perplexed - should I flush or ad extra nutes. Tricky

Hope pics are ok, I can take some more if that helps.

Calcium and magnesium are needed now.

 

[Mar1799]

Big thank all of you!

 

[Mar1799]

Foliar for a quicker response but you can add it to your nutrient solution as well.

For foliar approach the same amount or less/more?

 

[hotrodharley]

For foliar approach the same amount or less/more?

Same rate as for feed. It's just sprayed on.