Summary
This long-term liming experiment quantifies the yield responses of arable crops to changes in soil pH, establishing critical pH thresholds for selected species. The research demonstrates that phosphate fertiliser application significantly reduces the critical soil pH required for optimal crop performance, suggesting interactive effects between soil acidity management and nutrient availability in arable systems.
UK applicability
As a UK-based long-term trial, the findings are directly applicable to British arable farming practice and soil management policy. The pH-yield relationships and critical threshold values provide evidence for liming decisions in UK cropping systems, particularly where acidification or phosphorus availability is a constraint.
Key measures
Crop yields, soil pH, critical pH values, effect of phosphate fertiliser on pH-yield relationships
Outcomes reported
The study evaluated relationships between soil pH, liming interventions, and crop yields across multiple arable crops in a long-term field experiment. Critical pH values were calculated for selected crops, revealing how phosphate fertiliser application modifies pH-yield relationships.
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