----- Original Message ----- From: "Zoran Petrov" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, March 24, 2002 11:55 AM Subject: Re: re soil microbes releasing bound nutrients
> Dear John, > could You give a link to the article ou mentioned? I could not find it. > > Regards > > Zoran > ----- Original Message ----- > From: "John Lakey" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Saturday, March 23, 2002 12:33 AM > Subject: re soil microbes releasing bound nutrients > > > > Hello bdnow, > > > > The CSIRO in Australia have several collections of research > papers > > dedicated to the study of Soil biota and you can find them > at > > www.csiro.au Another text, recommended at the SFI web site, so I bought > a > > copy of it before the AUS $ dived to banana republic levels is: > > Principles and Applications of Soil Microbiology > > ISBN 0-13-459991-8 > > Elaine contributes a chapter on protozoa and nematodes but of > interest > > to the question about refereed scientific publications on activities > of > > mycorrhizal fungi and their symbiotic relationships with plants is > David > > Sylvia chapter Mycorrhizal Symbioses. > > He quotes studies that stated that though "fungal hyphae accounted > for > > less than 20% of total nutrient absorbing surface mass they > contributed > > nearly 80% of the absorbing surface area of pine seedlings" > > In addition three mechanisms are proposed for the release of > bound > > phosphorus from soils, > > -replace phosphorus sorbed at metal hydroxide surfaces through > ligand > > exchange reactions > > -dissolve metal oxide surfaces that sorb phosphorus > > -complex metals in solution and thus prevent precipitation of > metal > > phosphates. > > You may need a dictionary of scientific terms to follow these ideas, > I > > did! Important to realise that the plant and soil biota see the soil > as > > a solution ie a liquid not a solid. > > There is a lot of info out there bound up in esoteric Government > and > > University departments and libraries, I suspect that an e-mail to > the > > SFI [EMAIL PROTECTED] would point you most quickly to good > references. > > > > > > > > -- > > Best regards, > > John mailto:[EMAIL PROTECTED] > > > >
