--- title: Tillage activity data sources description: Data sources used for 'best available' tillage activity pre-fill and defaulting. --- [Skip to content](https://help.regrow.ag/tillage-activity-data-sources#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. [On-field activity data sources](https://help.regrow.ag/cradle-to-farm-gate-emission-factors?hsLang=en#on-field-activity-data-sources) # Tillage activity data sources Regrow's tillage activity data is an input for on-field emissions quantification (both DNDC modeling when available and IPCC calculations), as well as tillage machinery emissions.  Tillage activity data comes from a combination of Monitor (when available), and global datasets. When field-level Monitor residue data is not available, default data are used at the crop × country level based on best available sources and geographic coverage. ### Data sources Modeling or calculating on-field emissions from tillage activity and emissions from operating tillage machinery requires the following activity inputs: - Tillage intensity: no till, reduced till, conventional till - Number of tillage passes Regrow’s default tillage practice data is designed to provide field-level tillage activity data when available, and use a curated 'best available' default data set at crop\<\>country level when field level data is not available. #### Primary data source ##### Monitor field-level tillage intensity In regions whereMonitor is available, tillage intensity & passes are used directly as input to emissions calculations. Current Monitor coverage includes parts of CONUS & Canada, Europe, and Australia, with availability varying by crop, geography, and year.  See [**Where is Monitor available?**](https://help.regrow.ag/where-is-monitor-available?hsLang=en) for current coverage details. #### Secondary data source ##### Regrow's tillage geodata Regrow combined two global gridded datasets to estimate tillage practices by crop and country. Crop area is sourced from **SPAM 2005 v3r2**, which provides physical crop area for 42 crop types at ~10 km resolution Tillage classifications are sourced from **Porwollik et al. (2019)**, which maps six global tillage systems for the same 42 crop types at ~10 km resolution. The source tillage data includes six tillage systems, which Regrow groups into three simpler categories: no till, reduced till, and conventional till to align directly to the required inputs for emissions calculations. In general, no-till represents minimal soil disturbance, reduced till represents intermediate disturbance, and conventional till represents more intensive tillage practices. After the datasets are matched, Regrow sums crop area within each tillage category to estimate how much of each crop is managed under no-till, reduced till, or conventional till in each country. Those totals are then converted into percentages, creating a set of default tillage shares for each crop × country combination. Areas without valid tillage classifications are excluded from the calculation. For field-level defaulting applications, the tillage system representing the highest area x crop is selected. **Source attribution** - **You, L., Wood, S., Wood-Sichra, U., & Wu, W. (2014).** *Generating global crop distribution maps: From census to grid.* Agricultural Systems, 127, 53–60. - **Porwollik, V. et al. (2019).** *A global gridded data set on tillage (v1.1).*   - [Sustainability Insights](https://help.regrow.ag/sustainability-insights?hsLang=en#main-content) - [General](https://help.regrow.ag/sustainability-insights?hsLang=en#general) - [Configure](https://help.regrow.ag/sustainability-insights?hsLang=en#configure) - [Report](https://help.regrow.ag/sustainability-insights?hsLang=en#report) - [Plan](https://help.regrow.ag/sustainability-insights?hsLang=en#plan) - [Data updates](https://help.regrow.ag/sustainability-insights?hsLang=en#data-updates) - [Models](https://help.regrow.ag/sustainability-insights?hsLang=en#models) - [Integrations](https://help.regrow.ag/sustainability-insights?hsLang=en#integrations) - [SAI Outcomes](https://help.regrow.ag/sustainability-insights?hsLang=en#sai-outcomes) - [MRV](https://help.regrow.ag/mrv?hsLang=en#main-content) - [Login and registration](https://help.regrow.ag/mrv?hsLang=en#login-and-registration) - [Field boundaries](https://help.regrow.ag/mrv?hsLang=en#field-boundaries) - [Data entry tips and guidelines](https://help.regrow.ag/mrv?hsLang=en#data-entry-tips-and-guidelines) - [Data entry accelerators](https://help.regrow.ag/mrv?hsLang=en#data-entry-accelerators) - [Soil sampling](https://help.regrow.ag/mrv?hsLang=en#soil-sampling) - [Program data review](https://help.regrow.ag/mrv?hsLang=en#program-data-review) - [Reporting](https://help.regrow.ag/mrv?hsLang=en#reporting) - [Research and data credits](https://help.regrow.ag/research-and-data-credits?hsLang=en) - [Measure API: Enteric](https://help.regrow.ag/measure-api-enteric?hsLang=en#main-content) - [Getting started](https://help.regrow.ag/measure-api-enteric?hsLang=en#getting-started) - [Measure API: Intervention](https://help.regrow.ag/measure-api-intervention?hsLang=en#main-content) - [Introduction](https://help.regrow.ag/measure-api-intervention?hsLang=en#introduction) - [Getting started](https://help.regrow.ag/measure-api-intervention?hsLang=en#getting-started) - [Common Questions](https://help.regrow.ag/measure-api-intervention?hsLang=en#common-questions) - [Outcomes](https://help.regrow.ag/measure-api-intervention?hsLang=en#outcomes) - [Product Releases](https://help.regrow.ag/measure-api-intervention?hsLang=en#product-releases) - [Measure API: Inventory](https://help.regrow.ag/measure-api-inventory?hsLang=en#main-content) - [Introduction](https://help.regrow.ag/measure-api-inventory?hsLang=en#introduction) - [Getting started](https://help.regrow.ag/measure-api-inventory?hsLang=en#getting-started) - [Outcomes](https://help.regrow.ag/measure-api-inventory?hsLang=en#outcomes) - [Monitor API](https://help.regrow.ag/monitor-api?hsLang=en#main-content) - [Getting started](https://help.regrow.ag/monitor-api?hsLang=en#getting-started) - [Remote sensing technology](https://help.regrow.ag/monitor-api?hsLang=en#remote-sensing-technology) - [Integrate with Monitor API](https://help.regrow.ag/monitor-api?hsLang=en#integrate-with-monitor-api) - [Understanding Monitor field data](https://help.regrow.ag/monitor-api?hsLang=en#understanding-monitor-field-data) - [Cradle to farm-gate emission factors](https://help.regrow.ag/cradle-to-farm-gate-emission-factors?hsLang=en#main-content) - [Getting started](https://help.regrow.ag/cradle-to-farm-gate-emission-factors?hsLang=en#getting-started) - [Methodology](https://help.regrow.ag/cradle-to-farm-gate-emission-factors?hsLang=en#methodology) - [On-field activity data sources](https://help.regrow.ag/cradle-to-farm-gate-emission-factors?hsLang=en#on-field-activity-data-sources) [![Chill listening crop-3](https://help.regrow.ag/hs-fs/hubfs/03.%20Logos/Regrow_logo.png?width=96&height=24&name=Regrow_logo.png "Chill listening crop-3")](https://www.regrow.ag/) Copyright © 2026, Regrow Agriculture Inc.