Table 1: Initial soil characteristics at the sites before experimentation.

Property Site I Site II
Sand (%) 82.4 61.4
Silt (%) 3.28 17.3
Clay (%) 14.32 21.3
Textural class Sandy loam Sandy loam
Soil organic matter (%) 2.84 2.14
pH (water) 5.78 5.60
Total N (%) 0.18 0.14
Available P (mg kg-1) 6.56 5.46
Exchangeable K (cmol kg-1) 0.36 0.48
Exchangeable Ca (cmol kg-1) 2.10 2.30
Exchangeable Mg (cmol kg-1) 0.75 0.50