Variables | Max | Min | Mean | Standard deviation | Standard reference value |
---|---|---|---|---|---|
pH | 6.83 | 4.97 | 5.74 | 0.53 | 6.50 |
‘Total Nitrogen’ % | 0.21 | 0.06 | 0.12 | 0.04 | 0.27–0.36 |
‘Organic Matter’ % | 3.71 | 1.08 | 2.14 | 0.63 | 0.63 |
K, ppm | 12.81 | 1.72 | 5.95 | 2.45 | 0.27–0.36 |
P, ppm | 65.29 | 2.84 | 23.20 | 14.55 | 22.51–30.00 |
S, ppm | 127.75 | 2.26 | 24.14 | 23.48 | 22.51–30.00 |
Fe, ppm | 24.37 | 1.27 | 14.06 | 7.72 | 9.10–12.00 |
As, ppm | 0.03 | 0.00 | 0.01 | 0.01 | 0.01 |
Cu, ppm | 2.14 | 0.25 | 1.01 | 0.44 | 0.45–0.60 |
Ni, ppm | 1.28 | 0.10 | 0.49 | 0.24 | – |
Total alkalinity (as CaCO3) | 150 | 10 | 59.67 | 33.78 | – |