Table 6 Effect of nitrogen, residue and weed management practices on grain yield, energy-on-energy output of wheat (Average of 2018–2019 & 2019–2020).

From: Effect of residue and weed management practices on weed flora, yield, energetics, carbon footprint, economics and soil quality of zero tillage wheat

Treatment

Grain yield (kg ha−1)

Grain yield energy output (MJ ha−1)

Straw yield (kg ha−1)

Straw yield energy output (MJ ha−1)

Total energy output (MJ ha−1)

Percentage total output increase over control

Nitrogen and residue management

100% RDN* + Rice residue

3804.21

55,921.86

5433.10

67,913.80

123,266.24

5.46

125% RDN + Rice residue

4238.13

62,300.44

5970.06

74,625.69

135,963.72

14.49

125% RDN + Rice residue + Waste decomposer (WD)

4267.42

62,731.03

6010.32

75,129.01

136,914.81

15.07

100% RDN

3518.46

51,721.34

5228.63

65,357.93

116,908.29

 

SEm ± 

102.46

1506.10

140.83

1760.32

2497.13

 

LSD (p = 0.05)

354.54

5211.79

487.32

6091.52

8641.22

 

Weed management

Sulfosulfuron + carfentrazone (25 + 20 g/ha) at 30–35 DAS

4347.88

63,913.76

6162.32

77,028.97

140,019.18

28.39

Clodinafop-propargyl + metsulfuron (60 + 4 g/ha) at 30–35 DAS

4269.08

62,755.53

6032.05

75,400.56

137,437.14

26.94

Clodinafop-propargyl + metribuzin (54 + 120 g/ha) at 30–35 DAS

4137.33

60,818.80

5988.15

74,851.84

134,921.92

25.61

Control

3073.92

45,186.58

4459.60

55,745.05

100,674.81

–

SEm ± 

61.69

906.85

139.61

1745.17

1847.23

–

LSD (p = 0.05)

213.48

3138.13

483.13

6039.07

6392.27

–

Interaction

NS

NS

NS

NS

NS

–

  1. Treatment means were compared at P ≤ 0.05 level using least significant difference (LSD).