era.rothamsted.ac.uk
e-RA is a managed database for storing data from Rothamsted's Long-term Experiments, described as the oldest continuous agronomic experiments. It also holds meteorological records, documentation and a sample archive. The archive covers experiments measured continuously since 1843, with data from sites including Rothamsted, Woburn, Brooms Barn and Saxmundham. Tools allow searching the database, publications and scanned historical documents.