Re: HIST: CAT: Rebloom-soil condition
- To:
- Subject: Re: [iris-talk] HIST: CAT: Rebloom-soil condition
- From: J* a* C* W*
- Date: Sat, 11 Mar 2000 19:53:12 -0700
From: "Jeff and Carolyn Walters" <jcwalters@bridgernet.com>
> From: "William Stone" <wstone@volcano.net>
>
> Jeff; For the benefit of discussion, If I loosen my soil and let air in,
> then watered, would this not combine some of the air nitrogen with the
soil.
> Sorry if this sounds stupid but I feel it is worth a thought. Bill
Bill,
Yes, there is air in the porous spaces between the soil particles, and
cultivating the soil creates more of these spaces than when the soil is
packed down hard. However, as I said before, there is no way that plants
can make use of the Nitrogen gas that is in the air. The Nitrogen must be
converted to forms that are water soluble in order to be taken up by the
plants. Soil bacteria can do this and supply a major portion of the
Nitrogen requirements of certain plants that have established a symbiotic
relationship with them. Only a few plants have done this, primarily members
of the legume family (peas, beans, clover, alfalfa, etc.). Other plants,
such as irises, have no way of taking advantage of gaseous Nitrogen that I
am aware of.
Jeff Walters in northern Utah (USDA Zone 4/5, Sunset Zone 2)
jcwalters@bridgernet.com
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