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Soil, Water and Forage Testing Laboratory
Urban Fertilizer Management Calculator-Edition 1.1
Enter the results from your soil test report in the red boxes below.
Soil Test
Recommend
Values
Nutrient Rates
ppm
lbs/1000 sqft
Nitrogen
0
lbs N/1000 sqft
Phosphorus
lbs P
2
O
5
/1000 sqft
Potassium
0
lbs K
2
O/1000 sqft
Your Fertilizer Selection
This is the grade of fertilizer you might have historically used, observed at a local garden center, or home center. Please select either select your fertilizer under the Commonly Available Fertilizer drop-down menu or enter the individual nitrogen, phosphate and potash values using the three drop-down boxes.
Commonly Available Fertilizers
Select a fertilizer from this list or enter an unlisted fertilizer grade using the drop-down boxes below.
No Selection
35 - 0 - 5
32 - 0 - 10
29 - 0 - 4
25 - 2 - 10
24 - 24 - 4
22 - 2 - 2
21 - 0 - 0
20 - 27 - 5
16 - 12 - 14
16 - 4 - 8
15 - 30 - 15
15 - 5 - 10
13 - 13 - 13
12 - 24 - 12
12 - 10 - 5
12 - 5 - 7
12 - 4 - 4
12 - 0 - 0
11 - 2 - 2
11 - 0 - 0
10 - 8 - 8
10 - 4 - 12
8 - 10 - 8
8 - 4 - 8
7 - 2 - 2
7 - 1 - 2
6 - 9 - 0
6 - 7 - 7
6 - 4 - 6
5 - 3 - 3
5 - 2 - 6
5 - 1 - 1
4 - 10 - 6
0 - 46 - 0
0 - 0 - 60
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If you selected a fertilizer above, insure the three drop-down boxes below display "None".
"Nitrogen"
"Phosphate"
"Potash"
*Note:
if your soil test provides a nitrogen recommendation, please first select a fertilizer to fulfill the N requirements.
N
P2O5
K2O
None
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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
None
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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
None
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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
Nitrogen applied
Phosphate applied
Potash applied
How this fertilizer supplies your soil test nutrient recommendations:
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