Well, I'd like to start with extending my appreciation for your acknowledgement of my post.
Secondly i'd like you to respect science and stop spurting the first thing your narcissistic mind can think of. I guess i'll do this chronologically for readers that kept interest up to this point.
Third, Roll one up for the read. It might?... help...
1)"Think Total dissolved salts instead. BZZT, SOLIDS not "salts."
The sources of total
dissolved solids include all of the
dissolved cations and anions.
i'm sorry but solids are seriously misinterpreted.
noun:
solid; plural noun:
solids
a substance or object that is solid rather than liquid or fluid.
Are pathogens liquid or solid? Can you measure pathogens with a TOTAL DISSOLVED SOLIDS meter? Right...
https://www.water-research.net/index.php/water-treatment/tools/total-dissolved-solids
https://www.hydroviv.com/blogs/water-smarts/tds-meters-and-testers
2) You should be growing by NPK values...This is done by % of concentration by volume - The way NPK is measured in the nutrient bottle anyway.
This is severely misinforming because you don't just get 10% Nitrogen from a 10-10-10
First of all, 10% of what? A gallon? Oh 10% of the ENTIRE nutrient is (enter nutrient here)
Secondly, 10% usually isn't just nitrogen, they're accounting for Nitrates, Ammonium, even nitrites.
The most fundamental difference between
nitrite and
nitrate molecules is that while they both contain nitrogen and oxygen, the number of oxygen atoms is different. Both
nitrate and
nitrite molecules contain one nitrogen atom, but
nitrates have three atoms of oxygen and
nitrites have only two. but even more importantly, is this nitrogen source water solube and are the molecules available through ion exchange at the root zone.
Sure, they're garden fertilizers, of course. but how much?
http://passel.unl.edu/pages/informationmodule.php?idinformationmodule=1130447043&topicorder=11&maxto=15
https://www.researchgate.net/post/Why_nitrate_is_considered_to_be_the_best_form_of_nirogen_for_plant
http://www.greenhouse.cornell.edu/crops/factsheets/nitrogen_form.pdf
3) WTF? Teaching a college class to grade school growers is really not needed here...KISS goes a lot father with the bulk of these folks trying to learn to grow.
I'm sorry,but i've spent money and time on growing cannabis as have all of us.
I'm here to breed knowledge, keep breeding ignorance and see how far you will take your people.
Edit: After thinking about what you said, I must ask, are you making the assumption for the masses that they don't need to know? Or have I somehow offended you? One sounds like a totalitarian standpoint and the other requires you to admit to fault. Which one is it?
You're comment about "teaching a college class" is usually a compliment 'round these parts but obviously you're attacking me in either defense of yourself or offense of myself.
I'm curious Dr. Do you really think i'm the only mind that would inquire about why cannabis does "what"?
Or is it that you aren't one of those minds, and cannot accept others for their differences.
None of your post was informing, so I am left to wonder your purpose and motives.
Who here wants to spend 15,000 on botany, cultivation and specifically cannabis college courses? I did, so everyone shouldn't have to. Cannabis isn't keeping it simple. It's a passion where those who inquire are rewarded. I hear you're organic, have you ever even heard of
Dr. Elaine
Ingham? What about Jeff Lowenfels?
Do you think they kept it simple? Have some damn respect.
4) Best to remove the term "SALTS" and change that to "ions." I mean if your teach a college level class...Use the right terms!
A salt is a 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.
Not just ions Mr. Ignorance. Big difference.
5) VPD is best used in cannabis growing, by those that use Co2 gas! It's kinda over rated here. One of our things we fear is PM. PM easily comes into play by growing at over 50% RH....
EVERY grow book out there will tell you to grow at 50% RH.....I run mine down to 45% ( Goes to about 42 % from the over run from it being set to 45% and it fires the Deheuly at 50%)
Powdery mildew should have been a thing of the past. If you even worry about it, it proves the ignorance.
https://www.easy-grow.co.uk/learning-from-the-dutch-preventing-powdery-mildew/
Powdery mildew has only happened to me once. Now humidity and powdery mildew are light years apart for me.
6) In reality, the soil pH differences used by Indica's vs. Sativa's. are only measured in 10th's of 1 percent.....Meaningless in the grand picture of cannabis growing.
This is simply something you made up in your mind.
https://www.sciencedaily.com/releases/2016/12/161208143456.htm
A ph of 6.0 Is EXPONENTIALLY more acidic than that of 7. Not incrimentally.
Can you see Afghanistan? Hindu Kush mountains? Landrace strain Hindu kush? PH>7 Indica
What about Durban? Africa? PH<7
And since you're organic I assume you think Microbes are magically inert in terms of PH...
https://aem.asm.org/content/75/6/1589.short
https://www.sciencedirect.com/science/article/abs/pii/S1567539408001369
Do you know why Microbes change the PH? Because they are resilient and making a home in your soil.
I'm going to assume you think cannabis is simple.
It's one of the most complex plants. Strains vary greatly yes. So much so that they can adapt to different PH's
https://www.jstor.org/stable/42937041?seq=1#page_scan_tab_contents,
Cold cold temps
https://www.ncbi.nlm.nih.gov/pubmed/25431421
https://www.science.gov/topicpages/a/antifreeze+proteins+afps.html
https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12318
(Side note for those reading, anthocyanins are a pigment created in colored plants like cannabis, that change color expression according to Ph and when the temperatures drop creating an enviornment that allows chlorophyll breakdown and viola, colored cannabis. anthocyanins are best "excited" by 540nm light as apposed to Chlorophyll A 465 nm and 665 nm and B 453 nm and 642 nm and only appear when they are more abundant than other pigments.)
Colored cannabis is a maxima tribute to the adaptation of chlorophyll.
Also, no matter what you do, ph is going to "swing"
That's an effect of soil... I figured there was no need to bring it up and focused on controllable variables.
http://passel.unl.edu/pages/informationmodule.php?idinformationmodule=1130447041&topicorder=6&maxto=10
Hydroponics you say in your head?
Carbonic acid and the balance of Hydrogen ions. similar to soil, in that microbes in soil can actually fixate nitrogen present IN THE AIR.
It's called uh... nitrogen fixation...
I apologize if I've offended your keyboard with knowledge. Not sorry for offending your ego as it appears to have happened considering your inability to keep it simple on your end.
That's your motto right? Keep it stupid.
I want to review my post, but i'll let you do that and correct myself as needed. it's my bedtime.