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Skybound
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What app is that? I can't understand what it's showing, but for my micro mix is 3.8~ ml/Gal. Rounding up to even 4 won't hurt anything.
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In Hydro Buddy, when it tells you you need X.YY grams of this and Y.ZZ grams of that etc, those numbers are the ones the decimals are moved, not the actual elemental PPM. I'll demonstrate what I mean. Using your current program of 3.5 grams MC and 1 gram of CM Pro roughly results to the following elemental PPM.Those numbers are the decimal points moved to the left one place.
I’m considering trying these targets.
N- 120
P- 80
K- 220
Mg- 60
Ca- 140
It’s only varying the N and P. Given that I’ve used the Botanicare and Mega Crop feeding routines listed, with semi-reasonable success, and the plants weren’t all that much more screwy than they are now- maybe I’ll just try somewhere in the middle and see what that does
I notice that your jack’s formula recreation is basically the exact same NPK ratios as your targets, but watered down by 30%. Along with higher Mg and somewhat higher Ca.
Thanks for the ideas. My main concern right now is to get the bulk of the plants on some sort of diet where they are not too unhappy. I have a bunch of young clones almost ready to do some side-by-side tests with, and I can subject those ones to whatever torture I want. But I would like it if I could get the main part of the grow on a half decent diet in the meantime.
Probably my safest bet is to try a lighter nutrient mix and some bennies to start. Whatever else they have going on, the plants don’t look underfed.
Control of the Concentration
Instructions frequently call for the total N concentration in the nutrient solution
to start at a low level (<100 mg/L, ppm), which is then increased as the
growing crop matures. This is a common practice in the case of fruiting crops,
when control of the N supply is set to minimize excessive vegetative growth
and to promote fruit initiation and development. Since N is a key essential
element affecting plant growth and fruit quality, careful control of its supply
to the plant is extremely important. In soilless growing systems, success or
failure hinges to a considerable degree on how well this element is managed.
In general, the tendency is to supply too much N at all stages of plant growth
and not to regulate N supply by monitoring plant N content by means of
plant analyses (see pages 319–324).
I am going to check out that e-book more tonight. I confess I haven’t put much time into it.
It does seem to me like we are just flailing away trying to reinvent the wheel. I mean it just seems odd that we haven’t nailed this feeding stuff down yet. Surely some lab somewhere could answer these questions with a little effort?
Yet in the context of cannabis forums the work you’re doing here is pretty groundbreaking, and I think if we keep flailing away it it we will figure it out.
Seems like there’s quite a lot of wiggle room for different feeding levels. Although, if there’s so much wiggle room, I just wish I could wiggle my way into the good zone.
In that link to the thread I posted a few posts back, it shows some crazy high nitrogen ranges in veg, but not so much in flowering. All the feeding schedules there except for maybe one show quite low nitrogen- like around 100 ppm.
I remember you mentioned something at one point about peat and it possibly having an interaction with K. I have wondered why my results would be different than yours were in the rock wool.
Oh well, i am still growing plants and producing bud. I guess we will continue to flail away at it. I do believe the peat I’ve been digging up by my place is a lot better quality than the promix stuff, which seems like a bunch of dust.