--- title: Fertilizer Machinery Use methodology description: Calculates emissions due to combustion of fuel by machinery applying fertilizer. --- [Skip to content](https://help.regrow.ag/fertilizer-machinery-use-methodology#main-content) English Show submenu for translations [Customer portal](https://help.regrow.ag/support?hsLang=en) ![Regrow\_logo-1.png\]](https://help.regrow.ag/hs-fs/hubfs/03.%20Logos/Regrow_logo-1.png?height=40&name=Regrow_logo-1.png) Open main navigation Close main navigation - English Show submenu for translations - [Customer portal](https://help.regrow.ag/support) - [Go to regrow.ag](https://www.regrow.ag/) [Go to regrow.ag](https://www.regrow.ag/) How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://help.regrow.ag/?hsLang=en) 2. [Cradle to farm-gate emission factors](https://help.regrow.ag/cradle-to-farm-gate-emission-factors?hsLang=en) 3. [Methodology](https://help.regrow.ag/cradle-to-farm-gate-emission-factors?hsLang=en#methodology) # 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.   | **Inputs required** | **Description** | **Unit/Options** | | --- | --- | --- | | *Crop* | The name of your measured crop. This should be a single crop per measurement. | See our list of supported crops | | *Harvested yield* | The harvested fresh yield for your measured crop, before any drying or other losses might occur. | kg per hectare | | Location | The area used in the production of your measured crop. This should be a single field or single managed unit. Location is used to inform the emissions factors used. In most cases this is a global value for the crop and some select crops x geography this is country-specific. | Country-level or field level | | Fertilizer product | Is the product organic or inorganic? This informs machinery in addition to inputs below. | See list | | Method | This informs which application machinery is chosen. This is only available for inorganics. | See list | | Organic amendment liquid or dry | This informs which application machinery is chosen. This is only available for organics. | liquid, dry | | Application date | This informs how many uses of the machinery took place for that cultivation cycle. If there are two application dates, then we assume two machinery uses. However, if no dates are entered, then each entry will be considered an application event. | Application per ha |   Assumptions of on-field fertilization activities 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.  | **Machinery type by Ecoinvent** | **Fertilizer type** | **Geographies covered** | **Unit assumed** | **Dates** | | --- | --- | --- | --- | --- | | fertilising, by broadcaster | Inorganic | Global | 1 ha fertilized | Various | | fertilising, by injection | Inorganic | US only | 1 ha fertilized | 2021-2024 | | liquid manure spreading, by vacuum tanker | Organic, liquid | Global | 1 ha fertilized | 1991-2024 | | solid manure loading and spreading, by hydraulic loader and spreader | Organic, solid | Global | 1 ha fertilized | Various | - 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