Summary
This meta-analysis synthesised data from 55 long-term European field experiments to derive critical soil phosphorus values and examine their relationship to current European fertilizer recommendation systems. The work addresses variability in phosphorus fertility classification standards across Europe and provides evidence-based thresholds to guide nutrient management policy. As suggested by the title, the study bridges the gap between agronomic research findings and practical fertilizer recommendation frameworks used by farmers and advisers.
UK applicability
The findings are directly applicable to UK phosphorus management policy and advisory systems, as the United Kingdom participates in European harmonisation efforts on nutrient recommendations and soil testing standards. The critical value thresholds identified would inform revision of UK RB209 fertiliser recommendation guidelines and support evidence-based phosphorus stewardship to reduce environmental losses.
Key measures
Critical soil test phosphorus (STP) values; phosphorus fertility classes; crop yield response; phosphorus fertilizer recommendation thresholds across European systems
Outcomes reported
The study analysed phosphorus soil test critical values across 55 long-term European field experiments to establish relationships between soil phosphorus fertility classes and crop response thresholds. It examined alignment between European fertilizer recommendations and evidence-derived critical phosphorus values.
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