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Re: [APD] (no subject)



The term PMDD has evolved over the years.
And it conjures up different notions to different folks.

Some, it's a dosing routine
Some, a PO4 limiting method
Some, a simple way to dose nutrients
Some, poor man's dupla/dosing drops
Some a way to dose the macro's and the first paper that really
discussed it and got the ball rolling
I'd say it's all of these. 

It got folks away from commerical brands and to use macro's like
K2SO4 and the other salts to supply the plant's needs. 
It does focus on plant's needs, most all of them when applied
properly.

For the lighting levels that were common at the time(1.5-2.5wgal
of normal FL's), this method did work extremely well.

Regards, 
Tom Barr

www.BarrReport.com

 




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> Today's Topics:
> 
>    1. Re: PMDD & PHOSPHATE LIMITATION STRATEGY (Jerry Baker)
>    2. Re: CMS (Mike Szilard)
>    3. Re: Bait (Thomas Barr)
>    4. Re: PMDD & PHOSPHATE LIMITATION STRATEGY (S. Hieber)
>    5. Re: New to keeping plants. (S. Hieber)
>    6. Re: New to keeping plants. (S. Hieber)
> 
> 
>
----------------------------------------------------------------------
> 
> Message: 1
> Date: Thu, 16 Mar 2006 20:53:30 -0800
> From: Jerry Baker <jerry at bakerweb_biz>
> Subject: Re: [APD] PMDD & PHOSPHATE LIMITATION STRATEGY
> To: aquatic plants digest <aquatic-plants at actwin_com>
> 
> ajit athale wrote:
> > Following quotes amply demonstrate why PMDD is synonymous
> > with ?PHOSPHATE limitation strategy? and
> > how it is not just related with micronutrients.
> 
> You have presented an assortment of citations that demonstrate
> quite 
> effectively that PMDD is frequently mentioned when writing
> about 
> fertilizing aquarium plants. There's no need to argue. PMDD
> stands for 
> Poor Man's Dupla Drops. No more, no less.
> 
> -- 
> Jerry Baker
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Thu, 16 Mar 2006 21:08:18 -0800
> From: Mike Szilard <szilard at sbcglobal_net>
> Subject: Re: [APD] CMS
> To: aquatic plants digest <aquatic-plants at actwin_com>
> 
> CMS is a common mistake for CSM.  One of the popular trace
> sources.
> 
> --Mike
> 
> On 3/16/2006 7:22 PM Erin Poythress said the following:
> 
> >Airhead question... what's CMS? (I checked the
> >archives and I just can't put it together.) In my
> >world it means Chicago Manual of Style, and I just
> >don't see that as beneficial to my plant life. ;) 
> >Thanks,
> >Erin P.
> >
> >  
> >
> >>Using CMS, using an all in one liquid seems to be
> >>the fert part
> >>of it (for using the PMDD system)...
> >>    
> >>
> >
> >_______________________________________________
> >Aquatic-Plants mailing list
> >Aquatic-Plants at actwin_com
> >http://www.actwin.com/mailman/listinfo/aquatic-plants
> >
> >  
> >
> 
> -- 
> Mike Szilard
> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Thu, 16 Mar 2006 23:04:45 -0800 (PST)
> From: Thomas Barr <tcbiii at yahoo_com>
> Subject: Re: [APD] Bait
> To: aquatic-plants at actwin_com
> 
> 
> > What the hell are you babbling about ... oh, nevermind. You
> > were just
> > baiting me, right?  Never bait a Master Baiter!
> > 
> > George B
> 
> Discus make wonderful bait:)
> I add them just to make the plants look good.
> 
> Regards, 
> Tom Barr 
> 
> www.BarrReport.com
> 
> __________________________________________________
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> 
> ------------------------------
> 
> Message: 4
> Date: Fri, 17 Mar 2006 05:36:07 -0800 (PST)
> From: "S. Hieber" <shieber at yahoo_com>
> Subject: Re: [APD] PMDD & PHOSPHATE LIMITATION STRATEGY
> To: aquatic plants digest <aquatic-plants at actwin_com>
> 
> Clearly the original formulation was intended as an
> instrumention to emply the strategy,. Indeed a close
> conceptual connection but not one that withstands the
> linguistic test for synonomy, which is substitutability of
> terms without change in syntax or meaning. In any event, even
> if Sears and Conlin and early users of the term "PMDD" meant
> "phosphate limitation strategy" or (to stretch the notion of
> synonmy a little less) "phosphate limited formula", even if
> they meant that back then, since folks stopped fearing
> phosphate, many have been using "PMDD" to mean fert
> formulations even with phosphate. You can tell them they're
> wrong, but they mean what they mean when they use the term.
> For better or worse, that how many folks use the term "PMDD."
>  
> sh
>  
> 
> ----- Original Message ----
> From: ajit athale <ajitathale at dataone_in>
> To: aquatic-plants at actwin_com
> Sent: Thursday, March 16, 2006 11:01:00 PM
> Subject: Re: [APD] PMDD & PHOSPHATE LIMITATION STRATEGY
> 
> 
> Following quotes amply demonstrate why PMDD is synonymous
> with ?PHOSPHATE limitation strategy? and
> how it is not just related with micronutrients.
> 
> 1. Quote form the original sears-conlin paper  . . .
> 
> ------------------------------
> 
> Message: 5
> Date: Fri, 17 Mar 2006 05:44:59 -0800 (PST)
> From: "S. Hieber" <shieber at yahoo_com>
> Subject: Re: [APD] New to keeping plants.
> To: aquatic plants digest <aquatic-plants at actwin_com>
> 
> No, George, not baiting you. I think that in a relatively calm
> aquarium, it will be more energy efficient to heat an aquarium
> from the bottom . Cables do precisely that. However, this
> notion of energy efficiency relies on convection to distribute
> the heat. If there are strong water currents, then convection
> willmatter less and the relative efficiency attenuated. Is
> that energy efficiency important? Not to me; my cables are
> unplugged. But it could be to some folks. I could be wrong
> about the efficiency but being wrong isn't the same as
> babbling. I never suggested yours and Karla's excellent web
> site and other great contributions to the hobby were bablling
> even though I have long thought that you sometimes
> overestimated the value of heating cables.
>  
> Okay, enough with taking the high road - Now I will bait you.
> Just because a man can't read a sign doesn't necessarily mean
> that the sign is babble -- it's a poor carpenter that blames
> the tools. ;-)
>  
> sh
> 
> 
> ----- Original Message ----
> From: George Booth <gbooth at frii_com>
> To: aquatic-plants at actwin_com
> Sent: Thursday, March 16, 2006 11:10:17 PM
> Subject: Re: [APD] New to keeping plants.
> 
> What the hell are you babbling about ... oh, nevermind. You
> were just
> baiting me, right?  Never bait a Master Baiter!
> 
> George B
> 
> ------------------------------
> 
> Message: 6
> Date: Fri, 17 Mar 2006 10:46:23 -0300 (ART)
> From: "S. Hieber" <shieber at yahoo_com>
> Subject: Re: [APD] New to keeping plants.
> To: aquatic plants digest <aquatic-plants at actwin_com>
> 
> You just don't hear all that many horsehoe jokes these days.
> 
> Liz said:
> 
> If we were playing horseshoes would you be no one? :-)
> 
> ------------------------------
> 
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> 
> End of Aquatic-Plants Digest, Vol 31, Issue 35
> **********************************************
> 


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