@SeymourGreen Ca to mag
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I have muffed up grows with excess Ca…and excess K.
Also guilty of over correcting for defs, causing even more defs. Doh!
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At what point does extra become dangerously close to excess tho for each , as a general rule of thumb ?
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Good question.
Past grows I made many mistakes with my nutrients. Learned the hard way. Growing in coco for sure has it’s unique challenges, as does any grow medium/method.
Doing my homework now. To be ready for this fall when I start popping beans! Plan to put the ratios and formulas into action.
Lower EC feeds should help, multiple per day for mature root systems. Last grow my tds pen was out of whack by around 200ppm, fed heavier than I realized until about week 7. Now I have 3 tds pens and check them lime I do my ph meters.
I’m an ex IT guy, habit of keeping spares on hand for fault tolerance. Failures!
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Thanks guys. I know the pain of excess K. It sucks that there’s the same amount of K in the maxi grow, as there is in the bloom. That’s why I’m thinking of grabbing the Raw NPK grow for now. It’s a 7-4-5 NPK percentages, so like a 1.75-1-1ish ratio. @ifish you think those are decent percentages and ratios for veg? I kinda like the lower N, but not sure if that will cause issues in the future. It’s got micros too. A little low but they’re in there.
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Yes looks great but remember if adding calmag or similar it will bump up the n further : )
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I would say that the fastest problems you’ll run into with coco will be the K <> Ca, Mg ratios.
Because coco already sucks out Ca and Mg and gives back K, the balance goes out of whack really easily. Bloom boosters are nothing but problems in coco. If you normally have a 2:1 ratio of K:Ca, and then bloom boost to 3:1 or 4:1, your plants will hate you within a week.
This is also a good chart to reference. Same as the tables you posted @GramTorino
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I’m going to get that chart tattooed on my forearm for easy reference.
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P
https://www.cannabisbusinesstimes.com/article/balancing-the-nutrient-equation-cannabis-cultivation/
“Figure 1: Understanding P Rates. The response of Alternanthera (pictured) to increasing concentrations of phosphorus (P) from 0, 5, 10, 20 or 40 ppm (left to right). Phosphorus concentration can be used to control excessive plant growth, but adequate levels must be provided to avoid deficiency situations.”
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K
“Figure 3: The relationship of how increasing the concentration of K can have an antagonistic effect on both Ca and Mg uptake by a plant. A balanced fertilization approach of providing K to Ca to Mg in a 4:2:1 ratio to optimize uptake of all three nutrients is required. Illustration adapted from research conducted on poinsettias.”
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I needed a good probing. 
My 2020 growtoy of the year.
Scooped this up at my local hydro hut. Getting ready for fall!
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heh, the logo painted on the side of that van is a “Mandela Effect”, the V and the W in the logo have never been connected even though that’s the only way I ever remember seeing it.
Nice lookin one tho! That engine looks sexy af!
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Yes @HolyAngel a victim of a younger cousin. He was into VW’s and had a big stencil…I said, sure go for it… Amazing how many people would ask if it was a VW van.
Motor was fun to refresh. Machine shop rebuilt the heads, I did the rest.
(that one had the rare factory power steering pump and hydraulic ram option. one finger steering.)
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Updated popular nute recipes - ppm level. (corrected below)
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I think your Ca <> Mg are swapped on the Jack’s formulas.
| N (NO3-) | 138.959 |
|---|---|
| K | 206.015 |
| P | 49.803 |
| Mg | 89.201 |
| Ca | 127.562 |
| S | 117.741 |
| Fe | 2.853 |
| Zn | 0.143 |
| B | 0.476 |
| Cu | 0.243 |
| Mo | 0.181 |
| Na | 13 |
| Si | 0 |
| Cl | 0.91 |
| Mn | 0.476 |
| N (NH4+) | 6.974 |
That’s what I’m getting in hydrobuddy.
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