Most of what I've been reading here, and on other lists that have
been discussing soil and forage test results there seems to be a
feeling that all you have to do is feed the soil to deal with the
lacking items and things are fine. Also most of the folks are from
NZ or Aus. While I agree with the concept of feeding the soil first,
it seems as if there is a disconnect because the assumptions are
coming from a completely different base.
So my question is do any of those soils have significant amounts of
molybdenum? Very high Selenium? Is the PH ever over 8? If the water
usually PH of 8-9 for irrigation?
There doesn't seem to be much info on how to deal with extreme
excesses, assumptions are always to lime, for example, yet one of the
recommendations here to improve soil health and increase fertility is
to introduce sulfuric acid to the irrigation water if you can.
In some cases we cannot legally add enough trace minerals to feeds
and mineral mixes that we would like to. And there does not seem to
be any way to fertilize soils with a a single trace mineral according
to need. Everything I can find is based on adding everything to the
soils. There is no concept of mixing individual trace minerals to
tune the soils.
--
Oogie McGuire - oogiem@desertweyr.com
Weyr Associates - Multimedia and Web Authoring Services & Consulting
Desert Weyr - CMK Arabian horses and Black Welsh Mountain Sheep
http://www.desertweyr.com/
Paonia, CO USA
