PAAG Report 2013-14
This report presents a summary of soil analysis data collated by the Professional Agricultural Analysis Group (PAAG) from samples submitted between June 2013 and May 2014. Approximately 200,000 samples were analysed, covering pH, phosphorus (P), potassium (K), and magnesium (Mg) levels.
The findings highlight several consistent patterns:
- Soil pH: Low pH levels were found in 20% of arable and 21% of grassland samples. These figures are slightly higher than the previous year and reinforce the importance of regular soil testing to maintain optimal pH levels.
- Phosphorus (P) and Potassium (K): Only 10% of arable and 9% of grassland samples met the target indices for both nutrients. P levels were below target in 26% of arable and 35% of grassland samples, while K levels were below target in 31% of arable and 41% of grassland samples.
- Magnesium (Mg): Low magnesium levels were observed in 16% of arable and 3% of grassland samples, consistent with the previous year.
The report also notes weak but statistically significant positive correlations between P and K, and between K and Mg, suggesting that soils with higher phosphorus levels tend to also have higher potassium levels.
While the dataset is not statistically representative of all UK soils, it provides a useful overview of broad trends in soil nutrient status. The report supports the continued use of regular soil analysis to inform nutrient management decisions and maintain soil productivity.
