SweetLeafGrow
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Ever seen Mulder's Chart?
Nope, first time.
Yes, absolutely making sense. I am going to have to study that chart a bit, lots to digest there. Maybe find something to read on the subject.For example, there is no direct interaction between N and P. So while you are raising PPM as measured by your meter, adding N to a P rich res will not cause burn. If you are getting too much P, that can cause issues. Same with too much N. But if you have the right amount of P and add N too it, you should not expect burn unless you would have gotten that separately from the N.
I don't know if I am explaining this with the right words, does this make any sense?
I totally get this.What would make your job easier is if the TDS pen read P, N, K, Mg, Ca separately. 800PPM of just P is very different than 800PPM of N+P+K+++...
This is great info. With that in mind, of the pink, I think that number is good to go, very slight leaf tip burn here and there, just enough to know it seems I have approached that line. Same with N and the green. Lost a lot of the dark green coloration that was happening and feel any more of the green will only bring that problem back. So left with the brown and whether or not I should add any of that, my gut says no because the other 2 nutrients seem to be spot on and I don't want to do anything just for the sake of doing something lol.Generally it is the pink that causes burning. If you are on the razor's edge, back that off a little. Adding a little N at that point should not cause burns, but your PPM might be the same. Where you could run into issues is with the K / N antagonism. Higher N can make K less available.
I looked back and did see that I had changed the res to a flower ratio around the time of flip, so amending that ratio to bring green and brown up is something that can be done, just not convinced I should do it now with this new info...unless I do so just to tweak the ratios and then dilute down to that 650-700 range. I can definitely do this but still thinking.
I am a bit confused so I am not going to do anything until I understand all this better.