Main effects

Visible Weed Control (%)

Density^f

(no∙m⁻²)

Biomass^f

(g∙m⁻²)

2 WAA^a

4 WAA

8 WAA

Roundup WeatherMAX® (g∙ae∙ha⁻¹)

0

57

51

46

56.6a

55.5

900

97

95

92

14.3b

1.1

SE^b

3

3

2

2.8

4.1

Roundup WeatherMAX® P-value

0.0004

0.0022

<0.0001

0.0301

0.0116

Tolpyralate + atrazine treatments^c

No tank mix partner

40

38

33

46.8a

71.9

Tolpyralate + Atrazine

78

74

70

29.5ab

35.3

Tolpyralate + Atrazine + MSO^d

96

94

90

27.3b

2.8

Tolpyralate + Atrazine + UAN^e

80

73

70

28.5ab

24.1

Tolpyralate + Atrazine + MSO + UAN

96

95

90

22.5b

2.3

SE^b

3

3

2

2.8

4.1

Tolpyralate + atrazine P-value

<0.0001

<0.0001

<0.0001

0.0056

0.0003

Interaction

Roundup WeatherMAX®*tolpyralate + atrazine P-value

<0.0001

<0.0001

<0.0001

0.3347

0.0010