Issues related to classification of garden soils from the urban area of Toruń, Poland

Urban Farm DB summary

This study examined the extent and properties of garden soils in Toruń, Poland, using five soil profiles from four allotment gardens; the city has 66 allotment gardens covering over 300 ha, or 3% of the city area. None of the studied mineral surface horizons met the criteria for a Hortic horizon under the World Reference Base (WRB) 2015 classification because of too-low phosphorus content, although the other hortic criteria were fulfilled, and the authors recommend further study at a larger scale to evaluate whether the WRB criteria are too strict for typical garden soils that are only a few decades old.