Lentil and Chickpea Response to Spartan and Balance, Carrington, 2000.
G. Endres and J. Schneider

The experiment was conducted on a Heimdahl-Emrick loam soil with 6.2 pH and 3.3% organic matter at the NDSU Carrington Research Extension Center. The experimental design was a randomized complete block with four replicates. Herbicide treatments were applied to the center 6.67 ft of 10 by 25 ft plots with a hand-boom plot sprayer at 17.2 gal/A at 35 psi through 8002 flat fan nozzles. PPI treatments were applied on May 9 with 62 F, 33% RH, clear sky, and 8 mph wind on a dry soil surface and incorporated with a roto-tiller at a 3-inch depth. Inoculated ‘CDC Richlea’ lentil was planted at 500,000 PLS/A and inoculated ‘Sanford’ chickpea was planted at 130,700 PLS/A on May 10 in 7-inch rows at a 1.5- to 2-inch depth.  PRE treatments were applied on May 10 with 67 F, 47% RH, 50-75% cloudy sky, and 7 mph wind on a dry soil surface. A total of 0.46 inches of rain occurred during the 15-d period following the application of PRE treatments.

 

 

 

 

Weed control

 

Lentil

 

Chickpea

Herbicide

 

Lentil

 

Chickpea

 

Stand

 

Injury

 

Stand

 

Injury

Treatment

lb ai/A

colq

pw spp1

wimu

 

colq

pw spp1

wibw

wimu

 

31-May

 

2-Jun

16-Jun

 

15-Jun

 

19-Jun

 

 

 

________________________ % ___________________________

 

plt/ft2

 

______ % ______

 

plt/ft2

 

%

PPI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Snen

0.13

 

91

82

38

 

98

87

65

68

 

15

 

2

1

 

1.2

 

0

Snen

0.25

 

97

97

55

 

99

96

90

60

 

12

 

34

29

 

1.0

 

15

Snen

0.50

 

99

99

94

 

99

99

99

94

 

9

 

76

68

 

1.3

 

11

PRE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Snen

0.13

 

53

44

51

 

48

62

20

20

 

14

 

0

0

 

1.2

 

0

Snen

0.25

 

74

76

46

 

89

71

77

53

 

14

 

0

0

 

1.4

 

0

Snen

0.50

 

80

87

56

 

96

84

88

53

 

13

 

5

4

 

1.2

 

0

Isox

0.05

 

 

 

 

 

95

78

0

95

 

 

 

 

 

 

1.1

 

0

Isox

0.07

 

 

 

 

 

98

92

0

91

 

 

 

 

 

 

1.0

 

0

Isox

0.14

 

 

 

 

 

99

98

13

99

 

 

 

 

 

 

1.2

 

0

untreated

 

 

0

0

0

 

0

0

0

0

 

14

 

0

0

 

1.4

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LSD (0.05)

 

14

23

31

 

9

7

26

27

 

2

 

4

6

 

NS

 

NS

1pw spp = redroot and prostrate pigweed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common lambsquarters and pigweed control with PPI sulfentrazone was generally superior to PRE sulfentrazone.  PPI sulfentrazone at 0.50 lb/A was required for > 90% control of wild mustard. PPI sulfentrazone at 0.25 provided 90% control of wild buckwheat. Isoxaflutole at 0.05 lb/A provided excellent control of common lambsquarters and wild mustard, and 0.07 lb/A provided excellent control of pigweed. Lentil tolerance was acceptable with PPI sulfentrazone at 0.13 lb/A and all PRE treatments. Chickpea tolerance to sulfentrazone and isoxaflutole was difficult to evaluate due to an established stand having a low and variable density.

NDSU Vice President,
Dean and Director for Agricultural Affairs
NDSU Extension Service ND Agricultural
Experiment Station
NDSU College of Agriculture NDSU College of Human Development and Education