Corn (commercially grown)

Commercially grown corn. The data here comes from the University of Nebraska and reflects the averages for the Midwest United States. It should not come as a surprise that the most important resources for growing corn is land, water, fuel and fertilizer. The electricity is used mostly for the irrigation systems, but also in planting, harvesting, etc.Some facts about corn:

The yield is about 155 bushels of corn (56 pounds each) per acre,
The irrigation, in average, covers the field with about 2 inches of water per growing season
In addition to fertilizers, a significant amounts of lime are spread on the corn fields (about 212 kg/hectare)
About 45% of corn kernel is carbon, obtained from the atmospheric CO2. We include this as a negative number for the release of carbon dioxide pollution (that is, as carbon sequestration).

Impact of one pound
of "Corn (commercially grown)":

Overall impact (CEII): 81.18
Depletion (DI): 14744.29	Pollution (PI): -52.04	Entropy (EI)): 0.04

How the environment impact was calculated:

Production:

Requires:
Resource or Item	Amount	Unit	Depletion (DI)	Pollution (PI)	Total Impact (CEII)
Land	0.000116	acre	5956.76	0	53.61
Nitrogen fertilizer	0.00305	pound	0	1.4	1.38
Phosphorus fertilizer	0.00105	pound	0	0.06	0.06
Potassium fertilizer	0.00114	pound	0	0.03	0.03
Quarried materials	0.0045	pound	0.03	0	0
Herbicides, average	0.00011	pound	0	0.11	0.11
Insecticides, average	4.44e-06	pound	0	0	0
Water, fresh	6.1	gallon (US)	8780.3	0	79.02
Gasoline, burned as fuel	0.00019	gallon (US)	0.99	0.55	0.55
Diesel, burned as fuel	0.00077	gallon (US)	4.03	2.23	2.25
Liquid petroleum gas (LPG), burned as fuel	0.00065	gallon (US)	0	0	0
Natural gas, burned as fuel	0.0016	pound	1.01	0.59	0.59
Electricity, average	0.0049	kWh	1.16	1.89	1.88

Releases:
Resource or Item	Amount	Unit	Depletion (DI)	Pollution (PI)	Entropy (EI)	Total Impact (CEII)
Dissipation	0.16	kWh	0	0	0.04	0
Carbon dioxide pollution	-1.65	pound	-0	-58.91	-0	-58.32

Use:

Requires:
Resource or Item	Amount	Unit	Depletion (DI)	Pollution (PI)	Entropy (EI)	Total Impact (CEII)
			0	0	0	0

Releases:
Resource or Item	Amount	Unit	Depletion (DI)	Pollution (PI)	Entropy (EI)	Total Impact (CEII)
			0	0	0	0

Disposal:

Requires:
Resource or Item	Amount	Unit	Depletion (DI)	Pollution (PI)	Entropy (EI)	Total Impact (CEII)
			0	0	0	0

Releases:
Resource or Item	Amount	Unit	Depletion (DI)	Pollution (PI)	Entropy (EI)	Total Impact (CEII)
			0	0	0	0

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Corn (commercially grown)

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