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Illinois Fertilizer Conference Proceedings
January 25-27, 1999

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Table 4. Effect of low application rate starter fertilizer on corn grain yields, earleaf nutrient content, and-soil test, Arlington, WI, 1981-1983 (3-year average)*.
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Material lb nutrient
applied 		Grain
yield		 Earleaf nutrient
content 		1984 soil
test
N
P2O5
K2O
N
P
K
P
K
 
 
bu/a
---------%----------
----------lb/a---------
No starter
0
0
0
125
3.16
0.29
2.19
44
313
200 lb/a dry 6-24-24
12
48
48
138
3.18
0.27
2.08
52
330
200 lb/a liq. eq. 6-24-24
12
48
48
141
3.13
0.26
2.09
50
335
100 lb/a dry 6-24-24
6
24
24
137
3.23
0.27
2.13
37
308
100 lb/a liq. eq. 6-24-24
6
24
24
139
3.19
0.26
2.06
36
325
3 gal/a 9-18-9
(black acid-KCl)
3.2
6.5
3.2
133
3.26
0.27
2.04
33
317
3 gal/a 9-18-9
(white acid-KCl)
3.2
6.5
3.1
128
3.24
0.26
2.04
29
288
LSD (0.10)
 
 
 
11
NS
NS
NS
11
43
* Initial soil tests Bray P1 = 48 lb/a and extractable K - 183 lb/a.
All plots received 150 lb/a supplemental N plus 200 lb/a 0-0-60 each year.
6-24-24 materials applied on a 2x2 placement.
9-18-9 materials applied with the seed.
Adapted from Wolkowski and Kelling(1985).

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