[compost_tea] Re: When to add amendments to the soil

From: Tim Wilson <thegoodjob_at_hotmail.com>
Date: Sun, 19 Jun 2011 19:02:13 -0000

Another take, albeit commercially motivated

http://www.aglabs.com/newletters/accuracy-soil-test.html

--- In compost_tea_at_yahoogroups.com, "Tim Wilson" <thegoodjob_at_...> wrote:
>
> I did spend some time today searching for any information indicating that=
 organic (sequestered) nutrients contained in compost or soil can be revea=
led by typical laboratory testing,[not painstaking heating and weighing, et=
c. for each nutrient] including Mehlich III processes. I am willing to lear=
n if I'm incorrect so if anyone has some citations, etc. please post them
>
> Following is a not bad read and an excerpt;
>
> http://www.farmwest.com/index.cfm?method=library.showPage&librarypageid=
=125
>
> "Nitrogen is present in the soil in a variety of forms that change from o=
ne to another (see the Nitrogen Cycle section). This has caused the limited=
 use of soil N analyses throughout the world. Most of the N present in agri=
cultural soils is in organic forms yet plants largely feed on inorganic N, =
particularly nitrate. Nitrate can be readily measured in soils, but the amo=
unt in the soil at any one time may not indicate how much is available to p=
lants through the growing season because substantial amounts of inorganic N=
 can be released from the organic forms (a process called mineralization). =
Unfortunately, the rate of release of inorganic N from the organic matter i=
n the soil cannot be predicted by a chemical analysis at this time."
>
> Tim
>
> --- In compost_tea_at_yahoogroups.com, "Tim Wilson" <thegoodjob_at_> wrote:
> >
> > The only guts info I could find quickly was their newsletter with the a=
rticles about pH manipulation. Need to follow up before I can really say an=
ything besides (??). In the farming community I lived in before I watched t=
he locals chasing pH year after year following recommendations from the lab=
. It seemed to no avail, as we got equal to better yields completely ignori=
ng pH and all manor of 'chemical soil tests' but (???)
> >
> > Tim
> >
> > --- In compost_tea_at_yahoogroups.com, "steved3602002" <steved_at_> wrote:
> > >
> > > Logan Labs is an offshoot of Brookside Labs
> > > and both are based on the classic Albrecht
> > > soil test which is geared to mineral balance
> > > for soil structure and optimal microbial
> > > habitat, taking care of plant fertility,
> > > ultimately aiming for nutritionally balanced
> > > feeds and foods.
> > >
> > > Albrecht was a soil microbiologist, you know.
> > >
> > > Steve Diver
> > >
> >
>




Received on Sun Jun 19 2011 - 16:25:28 EDT

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