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Re: [APD] K+ Deficiency Symptoms - Scott?

Basically yes. Some folks have reported signs of excess K
at levels around 20 or higher. I've never seen problems of

Sometimes dropping down the K can show up with Ca
deficiency symptoms because, plants apparently sometimes
substitute K for Ca when Ca is low. In which cases, even
though the symptoms show because the K dosing was lowered,
Ca dosing is really called for.

Can't speak for K precipitating, but I guess it could
happen depending what k-compounds are used for dosing.


--- Tom Wood <tomwood2 at flash_net> wrote:

> SH: "Although 1-2 ppm is not far off from what a few seem
> to 
> recommend for K. My plants get mad if I don't give them
> about ten 
> times that amount."
> Scott - When your plants "get mad" do they show the
> potassium 
> deficiency symptoms like these:

> The reason I ask, is that I'm pretty sure I'm way
> overdosed on K+ 
> and I'm going to stop dosing for a while. I remember some
> recent 
> 'haze' episodes in the water after water changes, which
> is when I 
> dose ferts. I'm wondering if there is so much K+ that it
> is 
> precipitating itself or other things out of the water.
> I'll start 
> K2SO4 up again when -my- plants "get mad". ;-)

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