Table 1: Initial soil physical and chemical properties of the site before experimentation.
| Soil Property |
2015 |
2016 |
*Critical Values |
| Sand (%) |
69.0 |
69.0 |
– |
| Silt (%) |
13.1 |
13.6 |
– |
| Clay (%) |
17.9 |
17.4 |
– |
| Textural class |
Sandy loam |
Sandy loam |
– |
| pH (water) |
5.62 |
5.68 |
– |
| Organic matter (%) |
1.24 |
1.48 |
3.0 |
| Total N (%) |
0.16 |
0.15 |
0.20 |
| Available P (mg kg-1) |
9.8 |
8.9 |
10.0 |
| Exchangeable K (cmol kg-1) |
0.15 |
0.14 |
0.16 – 0.20 |
| Exchangeable Ca (cmol kg-1) |
1.72 |
1.80 |
2.0 |
| Exchangeable Mg (cmol kg-1) |
0.40 |
0.39 |
0.40 |
*critical values of soil nutrients according to Akinrinde and Obigbesan (2000).