Dosage and ppm don't match up !!
- Thread starter BigBud420.
- Start date
THE KONASSURE
Well-Known Member
When during one of my early dwc runs, I was at around 1200ppm tap water was coming in around 400ppm out the tap
So I fed one cotton candy more than the other
in the end it took around 3000ppm before the plant burnt and then it was just the tips of the buds bleaching
So I don`t know what to say, obviously there is a max and a ideal where feeding more will get you more but is not worth it and then over that you start to kill the plant
but 800ppm is what I`d feed at the end of veg or early flower or going into the end of flower
and when running plants outside I noticed the ones I was light feeding were not getting as big as the ones getting the old dwc 1600 to 2000ppm res dumped on them, also the plants getting a weak bio bizz feed did not taste as good as the ones getting higher ppms
Not saying your not maxing out your set up @800ppm but I just know that low level of feeding would never work for me
but it could be down to a lot of the bullshit that`s in our tap water
but I`ve never seen a plant in bloom get burn under 1800 normally have to push them way over 2200ppm to get any burn on them
but younger plants in veg, yeah ok sometimes 1200ppm or over will burn them when there small and under 5 nodes, but normally feed 800ppm or so in veg don`t need to go wasting the expensive chemicals, lol
and I`ve run a flood and drain @ 1800ppm going from 1400 upto 2000 depending on the week, anyway had some plants get seedy and had seeds popping in the clay pebbles and growing right out of the flood table
let a few go till they had 2 leafs on them and they seemed fine not saying they would not have gone toxic but I do think what`s already in the water and what your adding to it matters
I mean 200 to 600ppm or some peoples feeds is boosters and zymes and other such stuff that don`t even really count towards it really
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HydroRed
Well-Known Member
I have 2 Kosher Kush flowering now and they seem VERY sensitive to nute burn. Im flowering them now @ 440ppm and that is pushing it (not including cal/mags/boosters etc-just N-P-K). I've got tip burn on both and had to dilute it back some. My city tap comes out at approx 130ppm. Both flowered at just over 5 nodes (4 weeks veg from established/rooted clones) nothing large by any means. Largest plants I think I've done are approx 5-1/2' tall at harvest so I'm sure this accounts for some discrepencies between ppm levels in peoples grows. I do enjoy the low cost of nutes though lol
THE KONASSURE
Well-Known Member
yeah that kinda ppm would be nice and cheap, do you get much in the way of ph swings ? I found that running at 2000ppm and letting it drop to 1000ppm means that the extra pk was helping the res`s ph stay more stable, but lower ppm`s normally make for a better mix of bennies, but for me low ppm`s mean 700, N-P-K wise I must run between 500 and 1500, the rest is all cal/mag/boost and bullshit in the tapwater
I think it depends on a lot of factors, never ran Jew gold myself did`nt know it was such a low feeder, shorter flowering plants normally love any extra K they can get you know without going mad with some 0-0-60, lol
HydroRed
Well-Known Member
I do get ph swings, but they are on the up swing. What I do for the most parts is ph low (5.2 or so) then let it swing up over the next 5 days or so. I usually hit about the 5.8-6.0 ph mark around then and I top off the res with 5.2 and do it over again. Doesnt ALWAYS work out like this but for the most part. Keeps me from chasing ph too much. Considering I use the 5 gal buckets for each plant as their own res the chase isnt too bad. I add Humbolt "Ginormous" in flower and thats about the time I hit 500 ish on my max ppm (before cal/mag/etc).
THE KONASSURE
Well-Known Member
cool
I normally set up at 5.2 and let it get up to 6 or even 6.5 in hydro when I`m lucky enough to be able to use such growing methods
a few rare times I noticed I had a set up that would drop ph
as well as bennies and such breeding up most of the ph swing up I always thought was mostly cause by the plants drinking all the PK out of the res ?