June 2025 Release

This post outlines the recent updates to the FDM libraries: @svenvw/fdm-core, @svenvw/fdm-calculator, and @svenvw/fdm-data. This release focuses on expanding our fertilizer data ecosystem, refining the nitrogen balance calculations with ammonia emission tracking, and improving the overall developer experience.

Enhanced Fertilizer Management and Data

This release significantly enhances fertilizer management by introducing a new data catalogue and expanding the available parameters, providing users with more comprehensive and flexible data.

• Introduction of the baat Fertilizer Catalogue (@svenvw/fdm-data, @svenvw/fdm-core):

  • A new fertilizer catalogue, baat, has been added to @svenvw/fdm-data. This catalogue provides an alternative and supplementary source of standardized fertilizer data, giving users more options to choose from.
  • To support this, @svenvw/fdm-core now includes functionality to sync the baat catalogue, ensuring that the data is readily available within the FDM ecosystem.

• Expanded Fertilizer Parameters (@svenvw/fdm-core, @svenvw/fdm-data):

  • To allow for more precise nutrient management, the fertilizerCatalogue in @svenvw/fdm-core and the SRM catalogue in @svenvw/fdm-data have been updated to include p_no3_rt (nitrate content) and p_nh4_rt (ammonium content).
  • A new parameter, p_ef_nh3, has been added to the fertilizerCatalogue in @svenvw/fdm-core to represent the ammonia emission factor of a fertilizer, which is crucial for the new emission calculation features.

• Flexible Application Methods (@svenvw/fdm-core, @svenvw/fdm-data):

  • The fertilizerCatalogue in @svenvw/fdm-core now includes the p_app_method_options parameter, which defines the possible application methods for a given fertilizer.
  • This is complemented by the addition of p_app_method_options to the Fertilizer Catalogue in @svenvw/fdm-data.
  • For developers, the ApplicationMethods union type is now exported from @svenvw/fdm-data, simplifying the implementation of fertilizer application logic.

Advanced Nitrogen Balance and Emissions Tracking

We have made significant strides in our nitrogen balance module, with a new focus on environmental impact through emissions tracking.

• Ammonia Emission Calculation (@svenvw/fdm-calculator):

  • The nitrogen balance calculation in @svenvw/fdm-calculator has been enhanced to include the calculation of ammonia emissions. This provides a more complete picture of the farm's nitrogen cycle and its environmental footprint.
  • This is a critical feature for agronomists looking to improve nutrient use efficiency and for developers building sustainability-focused tools.

• Expanded calculateDose Output (@svenvw/fdm-calculator):

  • The calculateDose function now provides a more detailed output. In addition to the existing nutrients, the calculation now includes doses for the macronutrients Calcium (Ca) and Sodium (Na), as well as the micronutrients Copper (Cu), Zinc (Zn), Cobalt (Co), Manganese (Mn), Molybdenum (Mo), and Boron (B). This allows for more granular analysis and planning of fertilizer applications. The output also includes the doses of individual applications.

Improved Developer Experience and Tooling

This release includes several updates aimed at making the FDM libraries easier to use for developers.

• Expanded Parameter Descriptions (@svenvw/fdm-core):

  • A new utility function, getFertilizerParametersDescription, has been added to @svenvw/fdm-core. This function provides detailed information about fertilizer parameters, improving the transparency and usability of the library.

• Crop Rotation Data (@svenvw/fdm-core):

  • The getCultivation and getCultivations functions now include b_lu_croprotation in their output, providing easier access to crop rotation information.

Bug Fixes and Maintenance

• p_cr_rt Typo (@svenvw/fdm-core): A typo in the p_cr_rt parameter in the addFertilizerToCatalogue function has been corrected.
• syncCatalogue Bug (@svenvw/fdm-core): A bug in the syncCatalogue function has been fixed. Previously, when an item's hash had changed, its other properties were not being updated correctly.
• Unit Conversion Fix (@svenvw/fdm-calculator): An issue with unit conversion in the calculation of N supply by other fertilizers has been resolved.
• Documentation Updates (@svenvw/fdm-docs):
  • The documentation for database tables has been updated to align with the latest definitions in fdm-core.
  • New documentation has been added to explain the ammonia-emission calculation in the nitrogen-balance section.
• Dependency Updates (@svenvw/fdm-docs): The @svenvw/fdm-docs package has been updated to use React 19.

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These updates reflect our ongoing commitment to providing a robust and comprehensive platform for farm data management. We encourage you to explore these new features and welcome any feedback or contributions on our GitHub repository.