Table 69. Summary by Age and Primary Occupation of Principal Operator: 2012 (continued) 
[For meaning of abbreviations and symbols, see introductory text.] 
Other occupations 
Item 
Total 
Age of operator (years) 
Under 25 
25 to 34 
35 to 44 
45 to 54 
55 to 64 
65 and over 
FERTILIZERS AND CHEMICALS 
Commercial fertilizer, lime, and soil 
conditioners used 
farms 
16,246 
129 
1,492 
2,442 
4,451 
4,795 
2,937 
acres treated 
2,120,885 
13,299 
171,982 
326,760 
608,782 
616,901 
383,161 
Manure used 
farms 
4,757 
39 
504 
854 
1,465 
1,299 
596 
acres treated 
237,623 
1,592 
24,837 
44,288 
70,466 
66,059 
30,381 
Acres treated to control- 
Insects 
farms 
7,371 
66 
781 
1,161 
1,981 
2,089 
1,293 
acres 
998,085 
7,184 
87,836 
150,257 
280,415 
282,469 
189,924 
Weeds, grass, or brush 
farms 
16,359 
136 
1,466 
2,409 
4,472 
4,827 
3,049 
acres 
2,435,191 
14,770 
181,240 
362,645 
699,153 
717,171 
460,212 
Nematodes 
farms 
1,436 
18 
181 
213 
359 
442 
223 
acres 
161,611 
3,114 
17,091 
24,249 
45,799 
47,949 
23,409 
Diseases in crops and orchards 
farms 
1,562 
13 
198 
282 
424 
431 
214 
Chemicals used to control growth, 
acres 
194,115 
2,155 
20,678 
35,527 
58,439 
52,425 
24,891 
thin fruit, ripen, or defoliate 
farms 
148 
- 
20 
16 
46 
34 
32 
acres on which used 
4,901 
- 
884 
319 
1,543 
1,347 
808 
LAND USE PRACTICES 
Land drained by tile 
farms 
12,913 
86 
1,043 
1,659 
3,328 
3,888 
2,909 
acres 
1,417,726 
6,045 
104,967 
208,131 
409,545 
419,652 
269,386 
Land artificially drained by ditches 
farms 
3,955 
29 
294 
461 
1,028 
1,187 
956 
acres 
255,386 
2,233 
22,089 
27,529 
68,865 
71,400 
63,270 
Land under conservation easement 
farms 
1,273 
8 
50 
145 
306 
394 
370 
Cropland on which no-till practices were 
acres 
75,743 
278 
2,363 
10,158 
17,883 
25,783 
19,278 
used 
farms 
6,190 
49 
595 
896 
1,665 
1,773 
1,212 
Cropland on which conservation tillage, 
including no till, practices were 
acres 
712,594 
5,788 
57,099 
103,647 
206,075 
195,922 
144,063 
used 
farms 
6,024 
60 
481 
809 
1,671 
1,826 
1,177 
Cropland on which conventional tillage 
acres 
838,628 
5,339 
46,031 
110,426 
239,298 
272,342 
165,192 
practices were used 
farms 
7,946 
70 
851 
1,329 
2,165 
2,172 
1,359 
Cropland planted to a cover crop 
acres 
897,267 
4,190 
79,144 
151,602 
254,336 
252,467 
155,528 
(excluding CRP) 
farms 
2,131 
11 
146 
269 
599 
701 
405 
acres 
53,082 
821 
4,859 
7,048 
13,836 
17,153 
9,365 
ENERGY 
Renewable energy producing systems 
farms 
927 
- 
56 
137 
237 
325 
172 
Solar panels 
farms 
181 
- 
22 
33 
46 
49 
31 
Wind turbines 
farms 
242 
- 
8 
34 
58 
95 
47 
Methane digesters 
farms 
1 
- 
- 
- 
- 
1 
- 
Geoexchange systems 
farms 
507 
- 
26 
72 
145 
176 
88 
Small hydro systems 
farms 
11 
- 
- 
2 
2 
2 
5 
Biodiesel 
farms 
- 
- 
- 
- 
- 
- 
- 
Ethanol 
farms 
- 
- 
- 
- 
- 
- 
- 
Other 
farms 
6 
- 
" 
- 
1 
1 
4 
Wind rights leased to others 
farms 
244 
- 
9 
20 
56 
96 
63 
TENURE 
Full owners 
farms 
30,482 
89 
1,274 
3,101 
7,375 
9,117 
9,526 
Part owners 
farms 
6,602 
45 
668 
1,175 
2,042 
1,861 
811 
Tenants 
farms 
3,604 
110 
781 
783 
901 
697 
332 
OWNED AND RENTED LAND 
Land owned 
farms 
37,283 
134 
1,954 
4,298 
9,458 
11,038 
10,401 
acres 
5,366,753 
9,482 
128,005 
406,186 
1,132,892 
1,642,541 
2,047,647 
Owned land in farms 
farms 
37,084 
134 
1,942 
4,276 
9,417 
10,978 
10,337 
acres 
3,390,605 
6,017 
97,676 
301,348 
806,411 
1,067,070 
1,112,083 
Land rented or leased from others 
farms 
10,291 
155 
1,452 
1,965 
2,957 
2,581 
1,181 
acres 
1,606,887 
14,503 
177,280 
306,506 
497,899 
430,000 
180,699 
Rented or leased land in farms 
farms 
10,206 
155 
1,449 
1,958 
2,943 
2,558 
1,143 
acres 
1,584,682 
14,503 
174,772 
304,982 
494,037 
424,805 
171,583 
Land rented or leased to others 
farms 
12,285 
24 
290 
906 
2,520 
3,742 
4,803 
acres 
1,998,353 
3,465 
32,837 
106,362 
330,343 
580,666 
944,680 
NUMBER OF OPERATORS 
Total operators 
Farms by number of operators: 
number 
60,578 
305 
4,062 
7,854 
15,561 
17,524 
15,272 
1 operator 
23,887 
188 
1,565 
2,622 
5,795 
6,773 
6,944 
2 operators 
14,504 
51 
1,009 
2,169 
3,974 
4,253 
3,048 
3 operators 
1,842 
5 
124 
214 
429 
498 
572 
4 operators 
326 
- 
20 
39 
94 
108 
65 
5 or more operators 
129 
- 
5 
15 
26 
43 
40 
Total women operators 
Farms by number of women operators: 
number 
17,581 
36 
996 
2,293 
4,527 
5,034 
4,695 
1 operator 
16,187 
36 
958 
2,124 
4,174 
4,635 
4,260 
2 operators 
548 
- 
16 
62 
140 
160 
170 
3 operators 
78 
- 
2 
11 
23 
13 
29 
4 operators 
12 
- 
- 
3 
1 
6 
2 
5 or more operators 
3 
- 
- 
" 
" 
3 
- 
See footnote(s) at end of table. -continued 
2012 Census of Agriculture - State Data 
USDA, National Agricultural Statistics Service 
Iowa 201 
