"Wilson, Dale" wrote:
> Hi Russ,
>
> > Phosphoric acid (found in Coca Cola) is better at turning on
> > the SAR. I think that it is one of the major ingredients in
> > Alloette (sp).
>
> I believe it is salts of phosphorOUS acid (H3PO3) rather than PhosphorIC
> acid (H3PO4). This is confusing, since phosphorous acid is also called
> phosphonic acid. Rumor has it that spraying off-the-shelf phosphonate is
> almost as good as Aliette (aluminum ethyl phosphonate).
>
Okay, I'm not a chemist. But I suspect you are right. I'm under the
impression that Rhone-Poulenc has a "use-patent" on phosphonate. That you
can't legally just spray phosphonate. Not sure. . . just what I've heard. .
.Russ
-- Russ Bulluck Ph.D. Candidate Department of Plant Pathology North Carolina State University PO Box 7616 Raleigh, NC 27695-7616http://www.cals.ncsu.edu/plantpath/Personnel/Students/webpage.htm
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The soil population is so complex that it manifestly cannot be dealt with as a whole with any detail by any one person, and at the same time it plays so important a part in the soil economy that it must be studied. --Sir E. John Russell The Micro-organisms of the Soil, 1923 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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"Wilson, Dale" wrote:
Hi Russ,Okay, I'm not a chemist. But I suspect you are right. I'm under the impression that Rhone-Poulenc has a "use-patent" on phosphonate. That you can't legally just spray phosphonate. Not sure. . . just what I've heard. . .Russ> Phosphoric acid (found in Coca Cola) is better at turning on
> the SAR. I think that it is one of the major ingredients in
> Alloette (sp).I believe it is salts of phosphorOUS acid (H3PO3) rather than PhosphorIC
acid (H3PO4). This is confusing, since phosphorous acid is also called
phosphonic acid. Rumor has it that spraying off-the-shelf phosphonate is
almost as good as Aliette (aluminum ethyl phosphonate).
--
Russ Bulluck
Ph.D. Candidate
Department of Plant Pathology
North Carolina State University
PO Box 7616
Raleigh, NC 27695-7616http://www.cals.ncsu.edu/plantpath/Personnel/Students/webpage.htm
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The soil population is so complex that it manifestly cannot
be dealt with as a whole with any detail by any one person,
and at the same time it plays so important a part in the soil
economy that it must be studied.
--Sir E. John Russell
The Micro-organisms of the Soil, 1923
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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