Data on the effects of crop rotational diversity and nitrogen fertilisation on cereal yields
Data contain standardised yields of several different cereals collected between 1958 and 2020 from 32 long-term agricultural trials across North America and Europe. Yields in tonnes per hectare were standardised against the overall mean yield per site across all treatments and years. Treatments include different levels of crop rotational diversity and nitrogen fertilisation. This data was used in the article: Smith et al., Increasing crop rotational diversity can enhance cereal yields, Communications Earth and Environment, 2023. See the attached documents for more information, including, ‘Metadata.txt’ for description of data codes, ‘Crop_rotation_information_desc.txt’ and ‘Crop_rotation_information.tsv’ detailing cropping sequence and mean yields of each rotation per site and ‘R_script_Smith_etal.Rmd’ to see how this data was used in the associated article. R markdown output of the script is provided in the form of R_script_Smith_etal.pdf.
Smith, M., Vico, G., Costa, A., Hallin, S., Watson, C., Jäck, O., Sandström, B., & Bommarco, R. (2023). Increasing crop rotational diversity can enhance cereal yields. Communications Earth & Environment, 4:89. https://doi.org/10.1038/s43247-023-00746-0
Columbia Basin Agricultural Research Center
School of Environment and Natural Resources
Department of Agronomy and Plant Genetics at the Southwest Research and Outreach Center
Madrid Institute for Rural, Agricultural and Food Research and Development
National Institute for Agricultural and Food Research and Technology, Spanish National Research Council (INIA-CSIC)
Institute of Soil Science and Plant Cultivation - State Research Institute
Department of Systems and Economics of Crop Production
North Central Agricultural Research Laboratory
Council for Agricultural Research and Agricultural Economy Analysis
Research Centre for Agriculture and Environment (CREA-AA)
Department of Agronomy, Food, Natural resources, Animals and Environment
Department of Agricultural, Food and Environmental Sciences
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, INIA-CSIC
Swedish University of Agricultural Sciences
Department of Agricultural Research for Northern Sweden
Department of Soil, Water, and Climate at the Southwest Research and Outreach Center
Department of Forest Mycology and Plant Pathology
Including: Plant Genetics, Agricultural Ecology, Agricultural Technology, Agricultural History
Rearing of animals and/or cultivation of plants.
Environmental resources, protection and conservation.
Any overall structure or set-up used to organize the activity of preparing land or soil for the growth of new crops, or the activity of promoting or improving the growth of existing crops.
An agricultural technique in which, season after season, each field is sown with crop plants in a regular rotation, each crop being repeated at intervals of several years. Crop rotation minimizes the risks of depleting the soil of particular nutrients. In rotation systems, a grain crop is often grown the first year, followed by a leafy-vegetable crop in the second year, and a pasture crop in the third. The last usually contains legumes; such plants can restore nitrogen to the soil. Notwithstanding, high yields tend to depend upon the continued addition of chemical fertilizers to the soil.
Farming equipment and production facilities (including irrigation systems, greenhouses and stables).