Hey CBD.
I am a little turned around, I am trying to get things straightened out.
Let me drop back to your earlier letter.
I was thinking a bit more about this... dunno if you really need an NPK test, but still thinking the other tests would be good.
Ok, great to know! Thanks!
Only, I think my only option is if I want the soil analysis, or don't want the soil analysis.
It is basically binary (all or nothing).
Welcome to Colombia
hahahahahaha!
Confiabonos ingredients:
"
the premium substrate is composed of vermiculite, coconut substrate, perlite, zeolite, earthworm humus, guano, Canadian peat, diatomaceous earth and trichoderma."
From the Confiabonos analysis that you received from them, they didn't show any N or P.
Right. (Bummer.)
They showed "6.1" K, but didn't give any unit of measurement on that. Is it 6% K? If so, that's super high for a soil like this. In contrast, Roots Organics Lush that I checked out had 0.5% K – that was the highest of the commercial soils I looked at. If the unit of measure of K was cmol+/kg, which we dealt with before, with your soil test results... converting to ppm... 6.1 x 390 = 2,379 ppm. That's way too high... couldn't be. That leaves mg/kg, which is the same as ppm... that would be 6.1 ppm... very small amount of K. (I could comment on the Ca and Mg values in the analysis, but it would be a good idea to first contact Confiabonos and ask: 1- what type of guano and what's its NPK, 2 - what are the units of measurement of the K, Ca, and Mg.)
CBD, man, that must be some good stuff you growing over there! What is your fertilizer formula again? Hahahaha!
Man, you went wayyyy over me head, mon! Lol!
Like, "What?!?!" Hahahaha!
Ok I can tell you did math, and neither option is acceptable.
I don't hold high hopes for getting either detailed or reliable answers from Confiabonos FaceBook Messenger Tech Chat (which is the only option).
It would cost a little, but if it is a concern the thing to do would be to send in a sample, and just pay the $50.
$50 twice sounds like a lot to me (and I am swallowing it with help). But I spent a lot more than $100 on remedies for this last batch of Saltcool's Sodiumsoil, so given the situation, testing is not out of the question.
They don't specify what type of guano (bat or seabird), but I'm going to guess bat, because if they used seabird, there's a lot of P in seabird, and they don't show any P in the analysis. Fyi, both types of seabird guano – White (harvested) and Red (fossil sediment) – contain high amounts of P.
Ok, great to know!
When not specified, I would guess the cheaper of the two.
Assuming bat guano, that would be the only significant source of N, and they left N out of the analysis, which I'm guessing means there's an insignificant amount of N. Ditto for P. Given that bat guano is usually considered to have more N than P and K, and more P than K, it's odd that they only list K in the analysis. This could mean there's a very small amount of bat guano in the mix. Worm castings are not known to contain much NPK, but perhaps "earthworm humus" (aka vermicompost) could be contributing some K.
Yeah, I am guessing that Confiabonos Biogreen Premium is going to be what I THOUGHT I was getting from Bendita Sea, which is just a good basic nothing-fancy substrate for adding other ferts and such to.
I can try to ask questions on Facebook Messenger Tech Industries chat, but I would not rely on the answers.
I don't like the expense, but I am not against testing each soil, just to see what we got.
Cuz it is nice to grow it inside the house. The whole house smells great!
I could be wrong about all this, but it would be to their advantage to list N and P, but they don't... just K, Ca, and Mg.
Yeah, I wouldn't put a lot of credence in anything they publish.
What is that saying? Don't believe everything you hear, and only half of what you read?
I wonder if this part might belong to the other half, if you know what I am saying.
Kind of like Tech Industries saying that the pH 5.13 is a stray value that the California organic people came up with in their non-standard test. (I lived in California for a few years, and I can believe that. Some people feel that some of their regulations and tests sound great in theory, but occasionally cause more trouble than they solve.)
Without knowing any other hard evidence, I'd say it's probably a good base mix for you, but doesn't contain much NPK, and probably fairly light on the micro-nutrients as well.
I am totally open to it.
Only, a few posts back (I would have to look for it), I said that Roots looked like the best option I had, and I thought you agreed, so I put the soil on the list, and they ordered it already.
In fact I had them get some extra bags, so I can do some autos and pre-load them with GeoFlora, and top-dress with GeoFlora while we are waiting for the supersoil to cook.
(It should be fun to try a new technique.)
I appreciate all of your help, CBD! Only, I am kind of limited in my options.
We are going to use the university soil lab instead of the soil lab in Medellín, but I am sure it is similar.
I did not mean to jump the gun, but things tend to stagnate around here if you let 'em, so I am always pushing just a little bit to git' 'er done.
I hope I am understanding what you are saying, and that I am acting appropriately.
Your math examples went way over my head, so I am not 100% sure I am extracting the appropriate lessons here.