The Charts--Helpful charts for making nutrient deficiency diagnoses

  • Thread starter Seamaiden
  • Start date
  • Tagged users None
lino

lino

2,637
263
Don't forget that you can mist isopropyl inside that tent and if you do it every three days for two weeks, you should have them eradicated, with zero residue (especially if you use distilled water to cut the iso).
Maiden, let me get this straight ,,,, put Iso on plants also or just to disinfect the room?... If so never heard that one... what delusion rate do you use?
 
lino

lino

2,637
263
When using pictorial charts I always include this PH chart to help confirm diagnoses . Also some deficiencies diagnoses you'll find foliage feed direct to sick leaves can narrow your analysis as well.

This chart will tell you if your nutrient deficiency is PH related...

Chart


A Wide band show strong availability in that PH range.

Thanks for that pictorial chart, that rocks!
 
Seamaiden

Seamaiden

Living dead girl
23,597
638
? What info is incorrect that I passed? I'm happy to correct it. But if you're referring to the iso, it's what *I* do, as asked and described. It does pay to make sure you don't saturate the soil with the iso, though. ;)
 
lino

lino

2,637
263
? What info is incorrect that I passed? I'm happy to correct it. But if you're referring to the iso, it's what *I* do, as asked and described.
Thats the delusion, you passed AWESOME, accurate info,,,, I had Lino delusional moment of myself not inquiring before I spray plants with Iso! lol

The more I read of you, the more I realize your more than just a grn thumb,,, ya got some knowledge also,,, thanks for sharing it with me.
 
Last edited:
Seamaiden

Seamaiden

Living dead girl
23,597
638
Oh! Ok, I thought maybe I'd gotten something wrong that needed fixing. :D
 
milkcrate

milkcrate

35
18
Hello Seamaiden, thanx for the charts and info ya share. i had a question on the PH chart, what is the sweet spot ya want the ph so the plant gets the nutes ya give it? in hydro i always try to keep between 5.8 and 6.1...is that a good range?


crate
 
Seamaiden

Seamaiden

Living dead girl
23,597
638
I've only ever done perlite hempy tubs and coir, in relation to the hydro question. For coir I like that range, going a wee bit higher to 6.2, but I do allow ranging outside those parameters. For the perlite tubs the plants did better using a lower range, 5.2-5.8, but then the root aphids took hold as they got into flowering so I can't say how I might have finished, those plants barely finished.

For soil, I'm organic and so don't pH generally.
 
Chronic Monster

Chronic Monster

1,096
113
When using pictorial charts I always include this PH chart to help confirm diagnoses . Also some deficiencies diagnoses you'll find foliage feed direct to sick leaves can narrow your analysis as well.

This chart will tell you if your nutrient deficiency is PH related...

View attachment 373048

A Wide band show strong availability in that PH range.

Thanks for that pictorial chart, that rocks!
I have a question, why are some charts different?
i.e. below....
I am guessing one is for hydro and the other for soil?
why are nutrients better uptook in soil at a higher ph?
DSCN0497 3
Nutrient availability


What do you all think is optimal coco veg and bloom ph?
 
Nutrient availability
Nutrient availability
Smoking Gun

Smoking Gun

2,235
263
I have a question, why are some charts different?
i.e. below....
I am guessing one is for hydro and the other for soil?
why are nutrients better uptook in soil at a higher ph?
View attachment 376018 View attachment 376022

The discrepancies you are seeing are probably for a few reasons. As you have suggested hydro and soil will have different pH ranges for nutrient uptake. Another reason there are differences could be due to changing information. For many years there was only one chart floating around, and that was based on soil pH ranges. More recently hydro charts have become available, which would reflect a different pH range.
 
caregiverken

caregiverken

Fear Not!
Supporter
11,535
438
Thats the delusion, you passed AWESOME, accurate info,,,, I had Lino delusional moment of myself not inquiring before I spray plants with Iso! lol

The more I read of you, the more I realize your more than just a grn thumb,,, ya got some knowledge also,,, thanks for sharing it with me.
50% Iso...50% water...right?...I use that myself...works great
 
Seamaiden

Seamaiden

Living dead girl
23,597
638
I think it's normal, Ken. I see that when there's really explosive growth going on and judging by those pix, you're about at the end of the post-flip stretch there. You could give 'em a shot of more N here. They look extremely good to me.
 
caregiverken

caregiverken

Fear Not!
Supporter
11,535
438
Thanks Sea.
the cal mag has some N in it...so I will give em some of that next watering
 
milkcrate

milkcrate

35
18
i hope all is well....

i am going to change my PH to 6.5 and see if that helps, i always hovered around 5.9 to 6..2, and like wise, 5.8 to 6.1...i'll try it for awhile to see if anything changes, i also increased my cal/mag just a bit...at this point for a couple plants, i got no choice but to give it a shot...

i see a few leaves now turnin light and yellow on my bud plant so i'll do a water change later and increase the PH level to see if that helps any...

what do you think a good PH level would be in bloom...anyone? i know Maiden you said you dont use a hydro system..so throwin the question out there...thanx


crate
 
Seamaiden

Seamaiden

Living dead girl
23,597
638
If you're in hydro I'd be going the other way, a bit lower and keeping it into the 5s. That's how I did the perlite, and like I said, it was working well until the root aphids got going.

Also, see if you can separate the Ca and the Mg, or add in more Ca so that your Ca:Mg ratio is at least 4:1, with 6:1 being much more optimum.
 

Latest posts

Top Bottom