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Slownickel lounge, pull up a chair. CEC interpretation

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jidoka

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We actually dialed in vpd a while back...couple of rooms still an issue but most are good. Definitely a big part of the difference. We even control water temp for fert.

You would not believe the data I have to work with now. Gotta get you there one day.
 

slownickel

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I will tell you what. Getting enough Ca into salt fed coco plants is a motherfucker. Step one you better wash some gypsum through there to drive k and Na off the cec sites. And supplying all of your N with CaNO3 don't get it done either...you end up with high NO3 problems before you satisfy Ca.

Actually trying a very fine grind of gypsum dihydrate in the fertigation now. We will see how that goes. Plus foliars of course.

And dropping k and mg to levels I would have never believed so as not to block Ca uptake

but on the path concentrate yield has doubled and thc production is up 30-40%

You are going the right way, but at the same time dropping K is not a good idea.

You need the high K at the right moments. In veg at leaf maturation for flowering and later again at mid to end flowering... YOU MUST HAVE SPACE TO PUT ON THE K.

And obviously, you don't go overboard.

Realize that plants can't pick up K correctly if there is a Mn issue...
 

jidoka

Active member
We monitor K weekly with sap meters. They are slightly higher in bottom leaves than top so I have room. If that changes in flower (it is not so far) I will use foliar K to stay up with it.

In the salt soln itself K is just slightly below Ca. I still have room.
 

slownickel

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We monitor K weekly with sap meters. They are slightly higher in bottom leaves than top so I have room. If that changes in flower (it is not so far) I will use foliar K to stay up with it.

In the salt soln itself K is just slightly below Ca. I still have room.

Sounds like a P problem.
 

jidoka

Active member
I do not consider the ratio of p and k ever. We are 1 question away from what I don't talk about. Sorry but that is the line I draw
 

led05

Chasing The Present
Lol...you don't even have P in there. Cmon now yes of experiments deserves some privacy

P is bad, the state says no no on my lawn.... if k wasn't so high in it, I'd recommend tomato tone to people as a cheap widely avail blend, it seems to be everywhere...actually.... add a bunch of kelp, gypsum and spray foliar...and your really on ur way , if one were to take an easy path...
 
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plantingplants

Active member
Anyone have any book suggestions, besides More Food From Soil Science? Need some bedtime reading that isn't a lit screen so I can sleep better. All I know I learned from you guys, so it's all second-hand information, which can be awesome because you guys filter it through experience and knowledge, but also bad because I don't always get the context or the details.
 

led05

Chasing The Present
Lol...you don't even have P in there. Cmon now yrs of experiments deserves some privacy

This makes 5-6 CF - it works great for starts/seeds, some would think burn when looking at it but it doesn't if you mix it well, Kushlan makes a nice cement mixer (6 CF model) that works to mix small amounts up better than anything else I've ever tried

PEAT MOSS 2 CF Local POT MIX 1 CF PERLITE 5 G VERMICULITE 2 G SAND 1 G DE (Silica) 4-5 C EWC 4-5 C CRAB SHELL 4-5 C THORVIN KELP 4-5 C GYPSUM 4-5 C CALPHOS 2-3 C Supplimate 2 C GUANO 1 C LIME 1.5-2 C SULFATE OF POTASH 1/2 C MYKOS 2 Oz BORON 2 TBS MANGANESE 4TBS

If you on east coast 7springs farms is a good place to buy small and large amounts of minerals etc, I have no affiliation, ship quick, package well, ship as cheap as possible and good people to work with....
 

Sokan

Member
Anyone have any book suggestions, besides More Food From Soil Science? Need some bedtime reading that isn't a lit screen so I can sleep better. All I know I learned from you guys, so it's all second-hand information, which can be awesome because you guys filter it through experience and knowledge, but also bad because I don't always get the context or the details.

http://amazingcarbon.com/ I think that would suit for bedtime reading
shit, sorry non lit kindle is needed :D
 

slownickel

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I do not consider the ratio of p and k ever. We are 1 question away from what I don't talk about. Sorry but that is the line I draw

This might be your problem.

Elemental P should be close to or equal to your elemental K in PPMs...
 

plantingplants

Active member
^^^^ hhaaha review on amazon of that book:
Top Customer Reviews
5.0 out of 5 stars
By DJ on May 22, 2016

Yo, pot growers! Read this book and grow hella dank weed!


edit; fuck i looked at a couple pages with amazon's 'look inside'.. this is exactly what i want. i don't think i've ever spent $100 on a book but this is an easy decision.
 
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led05

Chasing The Present
Anybody have a peat moss sample? I am getting high Mg in a mix I haven't added any Mg to in a year. Thinking the peat I added was high in Mg. Any help would be great.

Peat has a super high CEC and loves to suck up both Ca & Mg and release H (adds to acidity), where did you have it stored? What brand was it / do you know it's origin?
 
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