Agrarmarkt Austria publishes the sales volumes of the pure nutrients nitrogen (N), phosphorus (P2O5) and potash (K2O) on a quarterly basis. LBG Österreich GmbH collects the annual application quantities of pure nutrients from mineral fertilizers from the farms that voluntarily keep records for the Green Report.
As part of a short study conducted by the Federal Institute of Agricultural Economics in 2016, the pure nutrient requirement of Austrian agriculture was determined on the basis of standardized withdrawal values of plant crops (according to acreage and yield per hectare), taking into account the pure nutrient input from animal husbandry at NUTS II level. The calculation was carried out using the spreadsheet software "EXCEL").
The sales quantities according to AMA surveys, the extrapolated application quantities and the nutrient requirements based on the nutrient withdrawals of the plant crops and nutrient supply through farm manure were compared.
Objective
The aim of the project is to adapt the calculations of nutrient requirements to the current data situation (e.g. guideline for proper fertilization in arable farming and grassland - 8th edition, 2022), taking into account the nutrient removal of the plants and the nutrient supply from farm manure, and to review the calculation methods.
Based on this, a tool is to be programmed that will allow automated, time-saving evaluations at regular intervals with access to the available databases.In addition, it will be checked whether a determination of the pure nutrient requirement based on INVEKOS data for individual farms is expedient, with the possibility of carrying out evaluations according to regions, farm types, etc.
Work carried out
In 2023, the collection of basic data from current publications was carried out retroactively to 2015. The analyses of nutrient application quantities from farms voluntarily reporting for the Green Report were updated. In 2024, the data basis for calculating the pure nutrient requirement was updated. Programming of the tool for automated evaluation was started.
Work 2025
The programming of the tool will be finalised and discussed with experts on the basis of initial results.
The aforementioned calculations will be carried out retrospectively until 2015. The annual analyses will also be continued after the end of the project.
Schedule
Project start: 01/ 2023
Project end: 12/2025
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