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. 2025 May 29;15:18901. doi: 10.1038/s41598-025-02704-6

Table 2.

Chemical composition of soils in sites with Bidens frondosa (average values).

Location Organic matter SOC TN C:N pH in KCl P K Mg Salinity CaCO3
(%) mg/kg µS·cm−1 %
Montenegro Organic soils (OM > 30%)
32,0 15.23 1.39 11 7.2 277.7 157.4 12,515.0 1060.0 22.0
Organic-mineral carbonate soils (OM—10–30%)
12.7 6.50 0.48 14 7.52 721.0 269.5 31,188.0 371.4 34.4
Mineral carbonate soils (OM 1–10%)
5.6 2.84 0.17 17 7.49 266.9 195.2 25,072.5 216.5 41.22
Poland Organic soils (OM > 30%)
42.8 20.81 1.67 12 5.77 1053.8 171.0 902.0 985.8
Organic-mineral soils (OM 10–30%)
18.5 9.54 0.74 13 5.15 1659.4 190.0 478.0 825.6
Mineral soils (OM—1–10% )
6.3 3.15 0.23 13 5.81 440.8 136.9 289.0 328.9
Mineral soils (OM < 1%)
0.6 0.21 0.02 8 5.75 265.1 18.3 39.0 77.8