Table 3 Results of infiltration parameters and Manning’s roughness coefficient under different treatment.

From: Optimizing furrow irrigation performance with WinSRFR software through field experiments and simulations in sunflower cultivation

Length (m)

Inflow rate (lps)

1st irrigation

3rd irrigation

5th irrigation

Tco (min)

k (mm/hra

α

f0 (mm/h)

Vin (m3)

η

Tco (min)

k (mm/hra)

α

f0 (mm/h)

η

Vin

(m3)

Tco(min)

k (mm/hra)

α

f0 (mm/h)

Vin

(m3)

η

CFI

45

1

55

42.60

0.218

3

3.3

0.023

63

52.67

0.314

4

0.117

3.78

58

49.30

0.233

2.9

3.48

0.062

1.5

42

54.29

0.315

3.2

3.78

0.019

48

67.82

0.514

4.2

0.091

4.32

46

57.66

0.335

2.9

4.14

0.057

2

33

64.54

0.426

3.1

3.96

0.017

40

72.68

0.554

4.1

0.083

4.56

38

68.23

0.316

2.7

4.56

0.048

55

1

63

35.46

0.17

3.2

3.78

0.023

68

49.35

0.307

3.5

0.117

4.08

66

43.98

0.35

3

5.94

0.062

1.5

50

47.95

0.439

3.3

4.5

0.019

53

73.56

0.452

3.9

0.091

4.77

53

59.66

0.313

2.9

4.77

0.057

2

40

54.44

0.461

3.1

4.8

0.017

43

75.44

0.344

3.9

0.083

5.16

43

67.33

0.391

2.8

5.16

0.048

65

1

72

31.99

0.245

3.1

4.32

0.023

80

63.21

0.422

4

0.117

5.66

75

36.20

0.425

2.9

4.68

0.062

1.5

63

44.66

0.384

3.2

5.6

0.019

68

75.47

0.397

3.7

0.091

6.1

66

51.22

0.433

2.7

5.94

0.057

2

50

51.64

0.494

2.9

6

0.017

55

81.33

0.494

3.5

0.083

6.6

53

68.12

0.552

2.9

6.36

0.048

AFI

45

1

72

72.88

0.388

4.2

4.32

0.020

81

76.47

0.357

4.5

0.115

4.86

75

71.48

0.342

3.8

4.5

0.059

1.5

58

89.64

0.329

4.1

5.22

0.016

65

104.62

0.392

4.3

0.093

5.85

63

94.79

0.377

3.6

5.67

0.053

2

47

118.63

0.375

4.1

5.64

0.014

57

126.76

0.412

4.2

0.087

6.84

55

107.18

0.384

3.2

6.6

0.043

55

1

75

59.96

0.305

4.3

4.5

0.020

85

65.29

0.366

4.2

0.115

5.1

82

99.10

0.351

3.6

4.92

0.059

1.5

62

80.70

0.416

4.1

5.58

0.016

71

86.96

0.347

4.1

0.093

6.39

67

90.47

0.375

3.8

6.03

0.053

2

49

109.39

0.382

4

5.88

0.014

58

97.37

0.396

4.1

0.087

6.96

59

99.91

0.396

3.6

7.08

0.043

65

1

85

56.18

0.393

4.2

5.1

0.020

97

93.10

0.331

4.4

0.115

5.82

91

60.79

0.377

3.5

5.46

0.059

1.5

72

81.16

0.389

4.1

6.66

0.016

86

96.16

0.387

4.3

0.093

7.74

81

82.79

0.396

3.3

7.29

0.053

2

60

96.44

0.298

4

7.2

0.014

71

101.50

0.389

4.2

0.087

8.52

67

100.72

0.398

3.1

8.04

0.043