Table 10 Density (No. m−2) of grasses, sedges and broadleaf weeds as influenced by sowing dates and weed management practices in DSR during the year 2018 and 2019.

From: Influence of sowing dates and weed management practices on weed dynamics, productivity and profitability of direct seeded rice

Treatments

Grasses (at 60 DAS)

Sedges (at 60 DAS)

Broad leaf weeds (at 60 DAS)

2018

2019

2018

2019

2018

2019

Sowing dates

 D1: May 10th

8.83

9.85

6.13

9.43

12.41

15.61

 D2: June 3rd

9.34

13.68

8.03

11.15

15.29

19.21

SE(m) ± 

0.11

0.17

0.15

0.18

0.21

0.25

CD (p ≤ 0.05)

0.31

0.59

0.44

0.57

0.65

0.67

Weed management practices

 W1: Weedy Check

22.12

28.32

18.43

23.61

34.02

41.64

 W2: four conoweedings (equivalent to weed free)

0.00

0.00

0.00

0.00

0.00

0.00

 W3: BSM + pretilachlor, PE

7.73

10.65

6.81

8.51

12.10

15.48

 W4: oxyfluorfen, PE

10.96

13.10

6.24

9.08

16.33

19.76

 W5: bensulfuron methyl + pretilachlor (PE) fb 2, 4-D (PoE)

5.12

9.46

4.87

7.31

8.52

13.38

 W6: oxyfluorfen (PE) fb 2, 4-D (PoE)

6.66

10.98

5.62

9.08

11.15

15.31

SE(m) ± 

0.14

0.13

0.15

0.27

0.19

0.33

CD (p ≤ 0.05)

0.46

0.44

0.45

0.81

0.58

1.04