CULT: boron in commercial iris regions

<<  I think I will contact my local  agricultural extension and find out
what
levels of boron are in the soil  type here. >>

Anner Whitehead asked:

< Might it be good to also find out what the levels are in the big <
commercial
< iris growing parts of the country?

I doubt my local agent would know.  Anybody out near Cooley's or
Schreiner's want to try to find out for us?  

A technical publication about naturally occurring amounts of metals and
trace elements in different regions of the US does exist.  I will see if
I can find out what is considered 'deficient' for boron - since Brady
doesn't mention Oregon as being deficient, we would then know levels are
naturally above that amount.

Linda Mann east Tennessee USA
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