Long term trial on spring wheat

This dataset is part of the database compiled as an outcome of Work Area 1 in project OrganicYieldsUP. Variable definitions can be found here: https://doi.org/10.5281/zenodo.15276082 Data on spring wheat from a long term trial on cereal production for the period 2015-2024 (available for researchers on request). The dataset comprises yield information on 44 varieties, fertilisation operations in seven localities (not all present all years: Grästorp, Västerås, Vikingstad, Vara, Skara, Skultuna, Borrby).