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[compost_tea] Re: drip irrigation



Thanks for the input. Isn't there a concern about the pathogen build 
up in the lines from the tea? Also, sulfur in the water produces some 
kind of bacteria problem. So, it seems that there is cleaning that is 
necessary more often than once or twice a year?? And what about the 
sulfur in the water? Does anyone know if that will be a problem for 
the microbes? Ron

--- In compost_tea@yahoogroups.com, "Mike Harvey" <mharvey@w...> 
wrote:
> Ron,
> Great question Ron, this is something that has huge potential.
> Some points for consideration, based on Australian drip irrigation 
systems.
>  Filtration sytems are usually 100 mesh (100 micron) this is very 
fine and
> will filter out Fungi that has been allowed to grow out to 
reasonable size.
> That is for our brew 24 hours at 28deg C down to 22dec C, this is 
too long
> as the fungi grow out to a size that will be filtered out. (You may 
be able
> to use a coarser filtration system more suited to larger openings 
in the
> water sprayers you use)
> I spoke to the folks at SFI Australia and they advised me to use a 
short
> brew time, more like 10 hours, long enough to activate and begin 
growing the
> fungi etc but not so long that the fungi will block filters. I have 
been
> doing this since and have had no trouble with it going through 
systems.
> Phosphoric acid can be used to clean irrigation systems, the acid 
will
> disolve organic matter in the lines and the phos acid will supply 
some
> phosphorus to the plants (it will of course kill MO where it drips) 
ask your
> irrigation supplier for more details.This is usually done once a 
year if
> required.
> As with other fertigation systems always pressurise the system 
fully before
> injecting and then ensure enough water passes through the system to 
flush
> all material out.
> My experience is that liquid fish should not be used in an 
irrigation system
> as it will tend to block things. Molasses, Humic acid, and  AACT 
are more
> suited.
> Regards Mike Harvey
> New Life Soils, www.composttea.com.au
> 
> 
> ----- Original Message ----- 
> From: "nehemiahlev" <nehemiah@t...>
> To: <compost_tea@yahoogroups.com>
> Sent: Wednesday, September 17, 2003 1:37 AM
> Subject: [compost_tea] drip irrigation
> 
> 
> > Hi,
> > I think this subject might have been addressed before but I can't
> > find anything in the archives. I am setting up an irrigation 
system
> > for a small nursery that will be using compost tea. Does anybody 
have
> > any input on keeping drip irrigation lines clean. What products 
can
> > be used that won't effect the organisms? There is also have a 
fairly
> > high sulfur content in the water. Will this affect the microbes 
and,
> > if so, is there a way to deal with it? I am also needing info on
> > pumps that would be appropriate, for this type of application, 
that
> > would handle, the tea and other organic fertilizers. Thanks
> > Ron
> >
> >
> >
> > To unsubscribe from this group, send an email to:
> > compost_tea-unsubscribe@yahoogroups.com
> >
> >
> >
> > Your use of Yahoo! Groups is subject to 
http://docs.yahoo.com/info/terms/
> >
> >


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