The SAGIT-funded project that I'm working
on is fluid delivery system so looking
at increasing nutrient efficiencies while
using fluid delivery system and also
looking at some of the new products
which are available for disease
management so mainly Rhizoctonia.There has
been a couple of new fungicide products
come on the market in the last couple of
years and we wanted to evaluate those
and see if there were benefits of using them in
farming systems on Upper Eyre Peninsula. This
is the last growing season of this
project and so we've had two years of
trials. So the trials are located at Streaky
Bay on a grey calcareous soil which is
where we get a lot of the Rhizoctonia
issues and the other soil type is at
Warramboo so that's more of a red sand.
The trial that we're doing is looking
at different nutrient delivery so we're
using DAP or 1820 as the control.
We're comparing different phosphorus
sources also different trace elements
sources and then we're also looking at
using the fungicides in there and then
seeing if we can actually increase crop
production and crop growth and
ultimately yield for growers. So far
we've had a response to using phosphoric
acid in the grey calcareous soils at
Streaky Bay. In 2014 we had a 30 per cent
increase in yield and 8 per cent in 2015.
We haven't had any significant differences
in yield using fungicides in our system.
We haven't had differences in trace
elements additions into the system in
but that's probably because we haven't
ended up on a site that actually has the
trace elements deficiency but it's
been no big boost in yield with
either the fungicides or the nutrition
in our systems. So when you split the
fungicide you can either put it all
below with the seed in the soil to
protect the seedling roots. Or we can
split the fungicide and actually put
half above the seed on the furrow and
that will allow it to wash into the soil
and protect the crown roots as they
emerge. I think as farmers buy new
machinery they're looking towards buying
fluid delivery systems if they can and
that's why we wanted to evaluate if
there was an advantage
using a fluid delivery system at seeding
over current systems. I guess one of the
main ones is mixing and compatibility of
trace elements with sprays during the
season so if they can put it up front and
actually get that early boost of growth
which is important in our systems and
whether that follows through to a yield
response. So far the results we still got
one more season of trials but we haven't
had to signficantt yield responses using
the trace elements in our systems or the
fungicides and obviously including a
fungicides in the system, I mean they
can range from eight dollars to $22 per
hectare so it's an extra input cost
in your system. I think growers need to think
carefully about before they add these
into their system.
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