Introduction

Net Return ($/A.)
Net Return ($/A.)
BECK’S Nitrogen Rate and Timing
2014 PFR Partners
$10.00
Nitrogen Rate and Timing Summary
Figure 1.
$5.00
$-
-30 lb. N
V5 +60 lb. N
$(5.00)
$(10.00)
$(15.00)
V10 +60 lb. N
V5 +30 lb. N
V10 +30 lb. N
$(20.00)
$10.00
$8.00
$6.00
$4.00
$2.00
$-
$(2.00)
$(4.00)
$(6.00)
$(8.00)
$(10.00)
$(12.00)
Early vs. Late-Season Sidedress N
Figure Figure 2. 2.
+$12.52
+$0.82
+30 lb. N +60 lb. N
V5
V10
Figure 1 illustrates the economic results from increased and decreased nitrogen rates. Under
applications of nitrogen resulted in net losses of $17.64/A., however the real story from this
study is the fact that an additional 30 lb. of nitrogen at the V10 growth stage proved to be the
only treatment that realized net economic gains. Providing that same additional 30 lb. of
nitrogen at V5 was apparently too early, considering the heavy rainfall that was seen in many
of the trial locations.
Figure 2 reveals the differences in additional N applied at both V5 and V10. The V10 +30
applications achieved net returns $12.52/A. higher than the V5 +30 applications. This again
may be a result of heavy rainfall occurring at or after the V5 growth stage. In general, an
additional 60 lb. of nitrogen supplied the highest yields in the study, but overall returns suffered
due to the added nitrogen cost.
14