Variety

N-management approaches

No. of effective tillers hill⁻¹

Panicle length (cm)

No. of grains panicle⁻¹

1000 grain weight (g)

Grain yield

(t∙ha⁻¹)

Straw yield

(t∙ha⁻¹)

Harvest index (%)

BRRI dhan29

BRRI recommended N (control)

11.07cd

21.5a-d

89.46bcd

24.07abc

6.49g

8.10ef

44.50a

Soil analysis based N management

10.67c-f

21.42bcd

92.90ab

22.44c-f

6.63fg

8.44c-f

44.02a

N management based on agro-ecological zone

11.00cde

21.34cd

88.01cd

22.47c-f

6.29h

8.52c-f

42.49a

20 kg∙N∙ha⁻¹ at ≤35 SPAD value

10.00fg

21.89ab

89.88bcd

23.87abc

6.65fg

8.45c-f

44.05a

30 kg∙N∙ha⁻¹ at ≤35 SPAD value

10.27efg

21.46a-d

88.35cd

25.07a

6.53g

8.40c-f

43.72a

20 kg∙N∙ha⁻¹ at ≤3.0 LCC value

11.93ab

21.85ab

90.37bcd

23.00b-e

7.34a

9.35 ab

43.98 a

30 kg∙N∙ha⁻¹ at ≤3.0 LCC value

10.07fg

21.60a-d

87.46d

25.05a

6.72ef

8.74b-e

43.47a

Urea super granule (USG)

10.67c-f

21.82abc

93.05ab

22.67b-f

6.24h

8.22def

43.16a

Dhanigold

BRRI recommended N (control)

9.800g

21.31d

88.32cd

23.47a-d

6.05i

7.95f

43.21a

Soil analysis based N management

11.93ab

21.74a-d

88.95bcd

21.87def

7.08b

8.56c-f

45.26a

N management based on agro-ecological zone

11.13cd

21.85ab

92.44abc

24.53ab

7.05bc

9.02a-c

43.87a

20 kg∙N∙ha⁻¹ at ≤35 SPAD value

10.13fg

21.93a

92.04abc

23.47a-d

5.19j

8.23d-f

38.69b

30 kg∙N∙ha⁻¹ at ≤35 SPAD value

10.47d-g

21.60a-d

91.25a-d

21.24ef

6.98b-d

8.90a-d

43.96a

20 kg∙N∙ha⁻¹ at ≤3.0 LCC value

11.40bc

21.51a-d

88.97bcd

23.87abc

6.87de

8.86a-d

43.69a

30 kg∙N∙ha⁻¹ at ≤3.0 LCC value

12.60a

21.84ab

94.80a

21.11f

7.25a

9.42a

43.49a

Urea super granule (USG)

10.27efg

21.48a-d

94.93a

23.07b-e

6.89cd

9.37ab

42.39a

Standard error

0.242

0.143

1.31

0.561

0.055

0.206

0.894

Level of significance

**

*

**

**

**

**

*

CV (%)

3.86

1.14

2.51

4.19

1.44

4.12

3.57