Summary
This study characterises the spatial heterogeneity and seasonal dynamics of phosphorus-related soil properties in arable Luvisols, with the aim of informing site-specific soil management strategies. Sampling in April and August 2008 revealed that alkaline phosphatase activity was significantly higher in spring than summer, whilst inorganic phosphorus increased seasonally; critically, no significant relationship was found between any phosphorus form and phosphatase activity. The findings suggest that temporal variation in internal soil factors may substantially influence the effectiveness of external management practices aimed at phosphorus availability.
UK applicability
Luvisols are widely distributed across the UK and northern Europe; findings on seasonal phosphatase dynamics and spatial variability patterns could inform phosphorus management in British arable systems. However, transferability may depend on local soil texture, management history and climate—direct validation in UK conditions would strengthen applicability.
Key measures
Total phosphorus (PTOT), available phosphorus (PAVAIL), inorganic phosphorus (PINORG), organic phosphorus (PORG), acid phosphatase activity (ACP), alkaline phosphatase activity (ALP)
Outcomes reported
The study measured spatial heterogeneity and seasonal changes in total, available, inorganic and organic phosphorus content, alongside acid and alkaline phosphatase activity in the upper horizon of arable Luvisols. Results showed significant seasonal variation in alkaline phosphatase activity and inorganic phosphorus content, with spatial variability patterns differing between sampling periods.
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