Re: [APD] Dosing Traces Dry

["Phu-Long Van Pham" <plvpham at hotmail_com>]

I have a very hard time completely dissolving the Plantex in the stock 
solution.  I've tried using warm water, and adding HCl, etc.  I used to 
store the stock solution in the fridge and members of my household (not very 
bright at times) will occasionally take a sip from the "TOXIC" bottle with a 
giant skull/crossbones drawing, but that's a minor problem.

The Barr method does not rely on a particular nutrient level, but rather a 
range of acceptable concentrations.  Coupled with the fact that the amount 
of Fe Tom recommends us dose is far greater than what the plants actually 
use; so does it matter if the dosage is a bit off?  After all, the stock 
solution doesn't dissolve the Plantex completely (at least for me) so each 
dosage is a bit off anyway.  I also remember the APD referenced that Plantex 
degrade in quality over time once put into solution, but is perfectly stable 
dry.  Is that true?

> IMHO you would be better off with the stock solution as 0.015625 tsp is 
> going to be very hard to measure. I have a set of the spoons that Greg is 
> selling, in fact I have several sets. And they are not that accurate on the 
> 0.03125 tsp.
>
> I also don't understand the hassle of mixing two tablespoons of Plantex 
> into 500 ml of water.

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