AWhat changed
Broadbalk established long-running comparisons of manure, mineral fertilizers and untreated plots in wheat. Its continuing measurements and retained samples made long-term questions about soil nutrients and crop production researchable.
Scientific scope
Broadbalk established long-running comparisons of manure, mineral fertilizers and untreated plots in wheat. Its continuing measurements and retained samples made long-term questions about soil nutrients and crop production researchable. Scope limitation: This is an experiment and research resource, not a universal fertilizer recommendation or one unchanged treatment protocol. Founders do not receive automatic credit for all later analyses; subsequent teams and datasets require their own attribution.
Evidence
Assessment uses the catalogue-linked source evidence for the stated contribution. This is an experiment and research resource, not a universal fertilizer recommendation or one unchanged treatment protocol. Founders do not receive automatic credit for all later analyses; subsequent teams and datasets require their own attribution.
Contributors
- John Bennet Lawes · SCIENCE: Named source contributor; exact labor shares are not measured.
- Joseph Henry Gilbert · SCIENCE: Named source contributor; exact labor shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
Full scientific record · Browse contribution grades · Request a correction