Irrigation system

Grain yield (kg∙ha⁻¹)

Water productivity

(kg∙m⁻³)

Water Savings (%)

CH₄ flux (kg∙ha⁻¹ season⁻¹)

GWP^a (Mg CO₂ ha⁻¹)

GHGI^b

Saturated

5365 c

0.299 b

8 d

152.91 b

3.82 b

0.712 b

Continuous flooded (Control)

5783 b

0.298 b

-

206.43 a

5.16 a

0.892 a

AWDI (10 cm)

6250 a

0.369 a

12 c

130.41 c

3.26 c

0.522 d

AWDI (15 cm)

5810 b

0.354 a

16 b

121.93 d

3.05 d

0.525 d

AWDI (20 cm)

4283 d

0.269 c

24 a

101.72 e

2.54 e

0.593 c

Level of significance

*

*

**

*

*

*

CV (%)

0.51

2.31

8.97

0.87

2.56

0.58

LSD

52.95

0.01

1.85

2.32

0.17

0.06