Table 6 Effect of irrigation water strategy on soil chemical properties.

From: Effects of irrigation systems and water management strategies on soil chemical properties and citrus tree productivity in clayey soils

IS

Sn

Depth (cm)

ECe dSm− 1

pH

CEC cmolc.kg− 1

ESP (%)

DFDI

1

0–30

3.98c

8.72

29.22c

11.78c

30–60

1.23bc

8.67

30.49ab

6.55abc

60–90

2.07bc

8.69

28.83c

7.89b

90–120

2.25b

8.70

27.96c

8.14b

2

0–30

5.92b

8.76

28.00c

14.79b

30–60

1.49a

8.69

30.97a

7.85ab

60–90

2.75ab

8.72

29.12bc

9.63a

90–120

3.22a

8.74

28.05c

10.37a

3

0–30

8.03a

8.79

27.16d

17.58a

30–60

1.72a

8.71

31.28a

8.79a

60–90

3.52a

8.74

29.27b

11.82a

90–120

3.94a

8.75

28.09c

12.35a

DSDI

1

0–30

3.19c

8.67

31.06a

9.97c

30–60

1.12c

8.60

28.95c

4.89c

60–90

1.65c

8.64

28.79c

6.76bc

90–120

1.73c

8.65

27.97c

7.05c

2

0–30

4.11c

8.74

31.25a

10.97b

30–60

1.19bc

8.65

28.43c

5.34c

60–90

1.99bc

8.68

29.18bc

7.64bc

90–120

2.31b

8.70

28.14c

8.00b

3

0–30

6.00b

8.79

31.54a

13.88a

30–60

1.23bc

8.67

27.38d

6.97b

60–90

2.53ab

8.72

29.42b

8.75a

90–120

3.01a

8.74

28.34c

9.53a

L.S.D (0.05)

0.19

0.23

0.18

0.08

  1. IS: Irrigation system; FI: flood irrigation; DFDI: Deficit surface drip irrigation; DSDI: Deficit sub-surface drip irrigation; FFDI: full surface drip irrigation; FSDI: full sub-surface drip irrigation; Sn: Season; ECe: Electrical conductivity; pH: Soil reaction; CEC: Cation exchangeable capacity; ESP: Exchangeable sodium percentage.