ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
DOWNLOAD THE FILE TO USE CORRECTLY
Download Excel File - File\Download\Microsoft Excel File (.xlsx)
2
Delta Yield - N Rate Determination for Corn
3
Insert Values in the Yellow Cells
4
ImperialMetric
5
Total N Applied to High N Zone330lbs N/acre370kg N/ha
6
Yield from High N Zone307bu/acre19.26tonnes/ha
7
Total N Applied to Low N Zone36lbs N/acre40kg N/ha
8
Yield from Low N Zone203bu/acre12.73tonnes/ha
9
Delta Yield (High Zone - Low Zone)104bu/acre6.52tonnes/ha
10
Corn Price $ 5.95 $ /bu $ 234.28 $ /tonne
11
Corn Price (per lb or kg grain corn) $ 0.11 $/lb $ 0.23 $/kg
12
Nitrogen SourceUAN (28-0-0)UAN (28-0-0)
13
Nitrogen Source Price ($/tonne of product)
 $ 550.00 $/tonne $ 550.00 $/tonne
14
Nitrogen Price (per lb or kg) of actual N $ 0.89 $/lb $ 1.96 $/kg
15
Price Ratio ($ nitrogen / $ corn)8.48.4
16
Most Economic Rate of Nitrogen (MERN)
151lbs N/acre169kg N/ha
17
Note: The formula for deriving the Most Economic Rate of Nitrogen is taken from the following research article; Janovicek et. al. Agronomy Journal 2021;113:1961-1973
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100