(upbeat music)
are you wondering what
other technologies you can
test to increase
nitrogen use efficiency
profits and yield
in this virtual field
day we bring you
an example of an
on farm research trial
looking at contrasting
nitrogen management
practices in corn
the grower located in
Seward county Nebraska
was interested in testing
anhydrous fall nitrogen
application against an
in season nitrogen
sidedress to test
these practices several passes
along the field
were done in the fall with
150 pounds per acre
corresponding to the
growers desired rate
other passes in the field
were applied with a
base rate of 75 pounds
per acre for those
strips that had the lower
N rate in the fall
a variable rate nitrogen
prescription was
applied around V8
Granular a crop
model based tool
was selected by the grower
in this case to
guide the variable rate
nitrogen application
along with these strips
a series of small blocks
with increasing amount
of nitrogen were
set in the field
to estimate the corn
yield response to nitrogen
and the associated economic
optimum nitrogen rate
that's the rate related
with the maximum amount
of profit but also the one
that minimizes nitrogen
losses
using yield monitor data
we will be able to
compare the yield
profit and the nitrogen
use efficiency difference
from the fall application
and the variable rate
nitrogen made by
Granular model
(upbeat music)