Summary
This field trial investigates how dairy processing sludges (anaerobic-digested and lime-stabilised) influence phosphorus cycling in grassland soils with contrasting textures. As suggested by the title and journal focus, the research evaluates both the agronomic benefit and environmental risk of applying this processing by-product, particularly concerning phosphorus availability and leaching potential across soil types. The findings contribute to evidence on circular nutrient management in dairy farming systems and soil-specific guidance for biosolid application.
UK applicability
Directly relevant to UK dairy farming and regulatory frameworks governing organic waste application to grasslands. Findings should inform best-practice guidance on dairy sludge recycling and phosphorus management compliance under UK environmental regulations and water quality standards.
Key measures
Phosphorus fractionation, soil extractable phosphorus, phosphorus mobility, phosphorus retention capacity, soil texture effects on phosphorus dynamics
Outcomes reported
The study examined how anaerobic-digested and lime-stabilised dairy processing sludge application affects phosphorus availability, mobility and retention in grassland soils of different textures. Soil phosphorus dynamics were measured across varying soil types to assess the agronomic and environmental implications of sludge-based nutrient recycling.
Topic tags
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