Re: JI Fertilizer Conflict
- Subject: Re: [iris-talk] JI Fertilizer Conflict
- From: C* M*
- Date: Thu, 12 Oct 2000 04:45:58 +1000
Bob
I've always been told that cow manure is the most acidic manure, and to be
recommended for La and JI. Ours seem to love it.
Would you agree?
Colleen Modra
----- Original Message -----
From: <ensata@aol.com>
To: <iris-talk@egroups.com>
Sent: Wednesday, October 11, 2000 10:19 PM
Subject: Re: [iris-talk] JI Fertilizer Conflict
> In a message dated 10/7/00 5:31:06 AM Eastern Daylight Time,
> nye@mail.fidalgo.net writes:
>
> << Why are fertilizers with Calcium in bonemeal and Calcium carbonate in
> the rock phosphates recommended for the fertilization of Japanese Iris,
> if lime and/or the Calcium in bonemeal are said to be fatal to Japanese
> Iris? >>
> They certainly can be fatal to JI. I know of no authority that recommends
> superphosphate or bonemeal or general flower fertilizer containing them
for
> JI; none of the azalea and rhodo fertilizers should be a problem.
> By the way, most all plants including JI are dependent on calcium. It is
not
> calcium that is the problem, it is the carbonate (lime). Calcium sulphate
> (gypsum) and calcium nitrate will not harm JI.
> Superphosphate should rarely be used anywhere - it ties up iron and can
cause
> lots of problems. Seldom does a soil need phosphorus
> You should know that mushroom compost has lime in it. Be very careful when
> using potting products containing peat moss: sometimes lime is added by
the
> manufacturer to neutralize it.
> Bob Bauer at Ensata Gardens
>
>
>
>
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