Depth (cm) S IG GW TWW GW TWW 0-20 176.40 a 139.80 a 111.20 a 149.00 a 20-40 51.40 a 56.40 a 38.00 a 45.40 a 40-60 28.40 a 29.80 a 57.80 a 26.00 a 60-80 39.40 a 31.20 a 30.40 a 39.20 a 80-100 45.00 a 40.96 a 26.40 a 40.46 a Values in any column followed by the same letter do not differ at the 0.05 significance level (Test of Newman-Keuls).

Table 6: Means of P2O5 (mg kg-1) for the experimental soil under effect of irrigation system.