Archie
- 33
- 18
I am looking for a basic NPK ratio that is suitable for all stages.
There is actual evidence that the best ratio for cannabis (and a lot of other plant species 75%+) is 3-1-4. It was discovered and applied and is pretty much the bench mark for a steady feed. Ofcourse there are spikes of different elements at different times of growth for (optimal growing) But a man named Mel Frank has proven this ratio successfully many times over. This is a common ratio in the horticulture field and commercial cannabis.
I appreciate your “make it make sense” approach!Does any product have that ratio? I mean, for being a benchmark, I can't think of a single product that has that ratio. If it were that settled as the holy grail, you'd think it would be everywhere. I've unraveled some multi-bottle "lineup" schedules. I think GH Flora 3-part is the only one that came close to that ratio. But, just once in veg. And, just in one of the three "schedules" for Flora series.
It just seems odd that such a well-established ratio would be so not available in all the common proprietary "lineups" (and as a standalone, one-bottle product?).
Also this is the recommendation for optimal growth by jacks hydro and printed on the container and website.
Check out greengenes YouTube video titled Jacks Hydro| Jacks 321| Universal Hydroponic Nutrients. It’ll show you better than I can tell you.
After seeing that a while back I started to research Mel Frank and knew of Ed. They pretty much wrote the book. I’m not using that exact ratio myself. Im using the gh floranova line. Which is close I read. I believe you might need raw elements weighing out each and mixing a proper way as to not effect some elements. Like silica mixed in well before others. There is a lot of discussion on the topic as is most feeding schedules but check it out let me know what you think. Google Mel Frank also there’s a lot of info.
I think these are definitely for hydro. Once you see the video it’ll be more explainedI wonder if 3-1-4 is more of a hydro thing? I remember a few years ago reading that 3-1-2 (veg) and 1-3-2 (flower) were the absolute best. But, then someone said that's for hydro. In soil, you wouldn't have those high ratios. That kind of matches what I've seen using a spreadsheet and varying my own ratios using generic stuff. In veg, I tend to be around 1.5-1-1.8. If I go above 2-1-1.8, it seems like I'm approaching N toxicity. I don't think I've ever done 3-1-2. Whenever I started going there, the plant looked like it was getting to much N. (But, maybe I should cut the strength. Maybe you feed lighter at those more pronounced ratios. But, I already feed lightly compared to what most people seem to do.).
Botanicare pbp grow or GH floranova grow both have decent ratios and are really simple to use one part fertilizers.
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