Table 1. Corn acreage planted in the six agricultural reporting regions

Region Acres
1 439,100
2 1,130,900
3 1,416,300
4 1,314,500
5 1,338,200
6 961,000
State 6,600,000

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Table 2. Fertilizer usage on corn

Fertilizer Region Percent acres treated Average number of treatments Rate per treatment (lbs/acre) Total amount applied (lbs)
Nitrogen
(N = 630)1		 1 90.91 1.73 51.08 35,248
2 95.10 1.74 56.79 106,629
3 98.55 1.66 72.01 167,354
4 96.58 1.44 82.09 150,336
5 97.52 1.74 64.94 147,540
6 98.00 1.78 58.54 98,094
State 96.11 1.70 64.24 705,200
Phosphate
(N = 556)		 1 88.64 1.08 38.07 15,942
2 93.14 1.16 48.09 58,602
3 86.96 1.12 42.27 58,081
4 79.45 1.06 54.18 59,955
5 77.69 1.17 42.79 52,018
6 92.00 1.11 37.57 36,802
State 86.36 1.10 44.82 281,400
Potash
(N = 541)		 1 90.91 1.23 63.59 31,197
2 85.29 1.16 34.61 38,887
3 92.03 1.10 61.40 88,516
4 75.34 1.08 52.06 55,965
5 76.86 1.20 53.77 66,824
6 84.00 1.12 71.62 64,911
State 84.07 1.15 56.18 346,300

1 N, number of survey reports for the whole State.

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Table 3. Insecticide usage on corn

Insecticide Region Percent acres treated Rate per crop year (lbs AI/acre) Total amount applied (lbs Al)
Chlorpyrifos
(N = 26)		 1 _2 _2 _2
2 2.94 1.07 35,700
3 5.88 0.79 65,400
4 2.05 0.77 20,800
5 _2 _2 _2
6 11.88 1.13 129,100
State 5.69 0.94 251,000
Permethrin
(N = 10)		 1 4.44 0.08 1,500
2 5.88 0.21 14,100
3 _2 _2 _2
4 _2 _2 _2
5 _3 0.09 1,000
6 _3 0.04 400
State 5.16 0.11 17,000
Phorate
(N = 17)		 1 2.22 1.59 15,500
2 2.94 1.19 39,600
3 2.94 1.22 50,700
4 _3 0.60 5,400
5 1.63 0.89 19,500
6 5.94 1.16 66,300
State 3.13 1.11 197,000
Terbufos
(N = 17)		 1 _2 _2 _2
2 _3 1.06 11,700
3 1.47 0.90 18,800
4 1.37 1.36 24,500
5 4.07 1.35 73,400
6 6.93 1.29 85,600
State 3.46 1.19 214,000

1 N, number of survey reports for the whole State.
2 Insufficient reports to publish data for this insecticide.
3 The insecticide was used on less than one percent of the acres.

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Table 4. Herbicide usage on corn

Herbicide Region Percent acres treated Rate per crop year (lbs AI/acre) Total amount applied (lbs Al)
2,4-D
(N = 81)		 1 8.89 0.22 8,500
2 6.86 0.32 25,100
3 8.82 0.75 93,600
4 28.08 0.43 157,400
5 10.57 0.42 59,000
6 3.96 0.27 10,400
State 11.20 0.40 354,000
Alachlor
(N = 159)		 1 11.11 2.10 102,600
2 8.82 2.84 283,500
3 34.56 2.31 1,131,600
4 19.18 1.78 448,900
5 29.27 2.74 1,072,800
6 33.66 2.29 739,600
State 22.76 2.34 3,779,000
Atrazine
(N = 206)		 1 55.56 1.05 255,500
2 21.57 0.64 156,600
3 36.03 0.71 361,900
4 14.38 0.53 99,700
5 25.20 0.66 222,700
6 57.43 1.06 587,600
State 35.03 0.78 1,684,000
Bromoxynil
(N = 112)		 1 _2 _2 _2
2 10.78 0.28 34,200
3 21.32 0.24 73,300
4 15.07 0.24 48,500
5 25.20 0.33 111,600
6 18.81 0.32 58,400
State 18.24 0.28 326,000
Cyanazine
(N = 107)		 1 15.56 1.01 69,000
2 17.65 1.35 268,700
3 16.91 1.77 422,900
4 17.12 1.79 403,200
5 6.50 1.78 154,600
6 25.74 1.50 371,600
State 16.58 1.53 1,690,000
Dicamba
(N = 195)		 1 15.96 0.26 17,900
2 41.18 0.28 129,300
3 25.74 0.29 106,000
4 36.99 0.29 138,700
5 21.95 0.43 125,800
6 29.70 0.34 97,300
State 28.59 0.32 615,000
EPTC
(N = 96)		 1 8.89 4.08 159,200
2 25.49 4.17 1,202,500
3 13.24 4.48 839,300
4 18.49 4.64 1,128,400
5 12.20 4.47 729,300
6 5.94 5.09 290,300
State 14.04 4.49 4,349,000
Metolachlor
(N = 164)		 1 20.00 1.87 164,000
2 16.67 1.67 314,500
3 22.79 2.30 741,700
4 29.45 2.22 860,300
5 28.46 2.53 962,800
6 28.71 2.17 597,700
State 24.35 2.13 3,641,000
Nicosulfuron
(N = 103)		 1 15.56 0.03 2,100
2 26.47 0.03 8,100
3 14.71 0.03 6,600
4 10.96 0.03 3,900
5 21.14 0.03 7,300
6 6.93 0.03 2,000
State 15.96 0.03 30,000
Pendimethalin
(N = 43)		 1 8.89 1.13 44,300
2 5.88 0.84 55,900
3 12.50 1.23 217,100
4 1.37 1.42 25,500
5 _2 _2 _2
6 13.86 1.35 180,200
State 8.50 1.19 523,000
Propachlor
(N = 23)		 1 _2 _2 _2
2 5.88 1.71 113,400
3 2.94 2.22 92,500
4 3.42 1.78 79,900
5 6.50 2.20 191,200
6 _2 _2 _2
State 4.69 1.98 477,000

1 N, number of survey reports for the whole state.
2 Insufficient reports to publish data for this herbicide.

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