Depth (cm) S IG GW TWW GW TWW 0-20 260a 220ab 150b 290b 20-40 210bc 210a 160c 240a 40-60 160a 150a 170a 160a 60-80 190b 110a 080a 120a 80-100 110a 120a 110a 110a Data in the same column followed by the same letter (a, c) were not significantly different at the P < 0.05 level (Test of Newman-Keuls)

Table 8: Mean value of K (mg kg-1) in the experimental soil under effect of the irrigation system.

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