The Broadbalk Wheat Experiment, Rothamsted, UK: Crop yields and soil changes during the last 50 years

Summary

This long-term field experiment at Rothamsted Research documents half a century of data on wheat crop yields and soil changes under differing fertiliser and manure regimes. The Broadbalk experiment represents one of the longest-running continuous cropping trials in the world, providing empirical evidence on the sustainability and productivity of contrasting arable management strategies. The findings contribute to understanding trade-offs between yield maintenance, soil health, and nutrient cycling in cereal-based farming systems.

UK applicability

The Broadbalk experiment directly reflects UK arable conditions and farming practice, making its findings highly applicable to UK cereal production policy and on-farm decision-making. Results inform nutrient management guidance and long-term sustainability assessments for the UK's dominant cereal cropping systems.

Key measures

Wheat grain yield, soil organic matter, soil nutrient status, soil physical properties, response to nitrogen fertiliser application

Outcomes reported

The study documented crop yields and soil chemical and physical changes over a 50-year period at Rothamsted's Broadbalk experiment under different nitrogen and manure treatments. As suggested by the title, the work tracks sustainability indicators including soil fertility, carbon dynamics, and yield trends across contrasting management regimes.

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