TABLE 1.
Chemical and physical properties of soils used in this study
| Sample name | Textural class | Soil component (%)a
|
OMb (%) | Available Nc (mg/kg) | Total P (mg/kg) | pH | CECd [cmol/kg] | ||
|---|---|---|---|---|---|---|---|---|---|
| Sand | Silt | Clay | |||||||
| KS5 | Organic soil | 56.6 | 7.5 | 1,484.5 | 4.9 | 103.2 | |||
| KS12 | Organic soil | 20.8 | 9.6 | 798.7 | 5.1 | 57.5 | |||
| KS14 | Loamy sand | 85.9 | 8.3 | 5.8 | 4.1 | 20.2 | 558.8 | 5.8 | 10.4 |
| NW0 | Sandy loam | 73.8 | 14.1 | 12.1 | 1.3 | 8.5 | 318.2 | 7.7 | 10.7 |
| NW5 | Sand | 87.2 | 5.8 | 7.0 | 0.7 | 5.2 | 256.4 | 7.7 | 19.4 |
| NW7.5 | Sand | 90.0 | 4.4 | 5.6 | 0.5 | 10.7 | 215.8 | 8.0 | 8.1 |
| SC0 | Sandy loam | 79.7 | 7.7 | 12.6 | 2.9 | 3.7 | 605.0 | 7.5 | 25.4 |
| SC2 | Sandy loam | 74.0 | 10.5 | 15.5 | 5.2 | 5.2 | 614.8 | 8.3 | 25.4 |
a
Soil component determined by hydrometer method.
b
Organic matter content determined by loss of ignition method.
c
Summation of NH4-N and NO3-N measured on moist soil samples and calculated for oven-dry soil basis.
d
Cation exchange capacity (unit of charge per weight of soil) was calculated by summation of exchangeable cations (K, Ca, Mg, Na, and H).