Fertilizer machinery use methodology

Calculates emissions due to combustion of fuel by machinery applying fertilizer.

Overview

Quantifies the emissions generated due to use of machines when applying fertilizer. It considers the number of fertilization events performed on the field, the category of fertilizer applied, and the type of equipment used.

Limitations

• This methodology does not include the actual production of the machinery or maintenance.

• It does not include any combination fertilization events like fertilization with planting or fertilization with tillage.

• The Ecoinvent data used for emissions are limited to only a few application methods. All method used are assumed to be broadcasted except for in the US where there is injection.

User Inputs

For each measurement there are inputs required. In the case that the user cannot provide the inputs then Regrow will default them.

If the fertilizer is any inorganic and:

• In the US, then

  • if Regrow’s method = broadcast, use “fertilising, by broadcaster” Ecoinvent EF

  • if Regrow method = subsurface, use “fertilising, by injection” Ecoinvent EF

• In any other country, then all Regrow methods will use “fertilising, by broadcaster” Ecoinvent EF

If the fertilizer is any organic then use

• liquid manure spreading, by vacuum tanker if liquid

• solid manure loading and spreading, by hydraulic loader and spreader if dry

Emissions factor coefficients

Ecoinvent v3.11 is used for all emissions factor coefficients.