Ag Energy Analysis for
Polk County, IA
Quick Stats
$15 Million
4.24 Million
36,945
366,392
755
Crop Production ($14.4 Million)
Energy use per Acre
Field Operations, Fertilizer Use, and Drying Requirements per AcreData source: Iowa State University Extension
USDA/NASS Data
All Statistics for Polk County, IAData source: USDA Ag Census, NASS Survey
Tillage Assumptions
Data source: Not available. Customize this value below.
Rotation Assumptions
Data source: Not available. Customize this value below.
Total Land Area 366,392 acres (Ag Census: 2017)
- - - Ag Land 196,447 acres (Ag Census: 2017) - - - - - - Cropland 173,854 acres (Ag Census: 2017) - - - - - - Cropland Harvested 164,262 acres (Ag Census: 2017) - - - - - - - - - - - - Corn 71,300 acres (NASS / Ag Census) - - - - - - - - - - - - Soybeans 64,100 acres (NASS / Ag Census) - - - - - - - - - - - - Forage 5,808 acres (NASS / Ag Census) - - - - - - - - - - - - Corn silage 362 acres (NASS / Ag Census) - - - - - - - - - - - - Oats 0 acres (NASS / Ag Census) - - - - - - Pastureland 10,300 acres (Ag Census: 2017) - - - - - - Woodland 6,500 acres (Ag Census: 2017) - - - - - - Other Ag Land 5,793 acres (Ag Census: 2017)Livestock Production ($656 Thousand)
Energy use per Head
Electricity, Heating, and Diesel Costs per Head
USDA/NASS Data
All Statistics for Polk County, IAData source: USDA Ag Census, NASS Survey
Economic and Stewardship Opportunities
Selecting the right amount of tillage is a critical decision for farm energy use and profitability. Similar to other farm management decisions such as nitrogen fertilizer use for corn, or ventilation rate in a livestock confinement, overuse wastes energy but underuse can lower profitability.
A key is to carefully consider potential for gross revenue returns to tillage operations, (i.e., crop yield), in comparison to fuel, labor, and machinery costs for doing tillage. Put another way, are tillage passes beyond a no-till management scheme returning costs of fuel, labor, and machinery that are required of the tillage?
Tillage Practice Assumptions
Enter the overall percentage of crops using the following tillage practices:
Rotation Practice Assumptions
Enter the overall percentage of corn using the following rotation practices:
Energy efficiency improvements and on-site solar are viable options for most farmers. More efficient lighting, pumps, and motors can lead to a 20% reduction in electricity use, and solar panels installed on-farm can generate 30-50% of the electricity used in livestock production and/or grain drying.
Electrical Efficiency Savings
Enter the percentage of electric energy savings through energy efficiency measures and on-site solar (e.g., 20% savings):