Abstract
The experiment was conducted at the experimental field of Sher-e-Bangla Agricultural University, Dhaka during the period from March to June, 2018 to study the effects of agronomic managements on growth and yield of Aus rice. The experiment comprised of split –plot design where varieties in the main plots viz., i) BRRI dhan65 (V1) and ii) Nerica (V2) and five agronomic managements in the sub-plots viz., i) No management-M0, ii) No weeding, but all other managements-M1, iii) No fertilizer application, but all other managements-M2, iv) No irrigation application, but all other managements-M3 and v) Recommended management-M4, respectively. Almost all the studied characters were found statistically significant due to variation in treatments. Significant variation was recorded different yield contributing characters and yield of Aus rice. At 30, 50, 70 DAS and harvest, the taller plant (24.61 cm, 41.27 cm, 60.23 cm and 80.28 cm, respectively), grain yield (0.96 t ha-1) and straw yields (2.75 t ha-1) were recorded from V2 compared to that of V1. Similarly, the tallest plant (27.11 cm, 49.66 cm, 71.49 cm and 91.07 cm at 30, 50, 70 DAS and harvest, respectively), grain yield (2.34 t ha-1) and straw yield (5.30 t ha-1) were observed from M4. In respect of interaction, the highest grain yield (2.43 t ha-1) and straw yield (5.31 t ha-1) were observed from V1M4 (BRRI dhan65 with recommended management), while the lowest grain yield (0.12 t ha-1) from V1M0 (BRRI dhan65 with no management) and straw yield (0.85 t ha-1) from V2M0 (Nerica with no management). Irrespective of variety with no management reduced 94-95% grain yield of Aus rice that was 84-89% for no weeding and no fertilizer application. Bangladesh Agron. J. 2022, 25(2): 43-49
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Claims 13
Claim · model-written summary
Nerica had taller plants than BRRI dhan65 across four stages.
Verbatim
e0“At 30, 50, 70 DAS and harvest, the taller plant (24.61 cm, 41.27 cm, 60.23 cm and 80.28 cm, respectively), grain yield (0.96 t ha-1) and straw yields (2.75 t ha-1) were recorded from V2 compared to that of V1”
t0“Aus Rice”
Claim · model-written summary
Nerica grain yield was 0.96 t ha-1 relative to BRRI dhan65.
Not reportedDirection
Verbatim
e0“grain yield (0.96 t ha-1) and straw yields (2.75 t ha-1) were recorded from V2 compared to that of V1”
t0“Aus Rice”
Claim · model-written summary
Nerica straw yield was 2.75 t ha-1 relative to BRRI dhan65.
Not reportedDirection
Verbatim
e0“grain yield (0.96 t ha-1) and straw yields (2.75 t ha-1) were recorded from V2 compared to that of V1”
t0“Aus Rice”
Claim · model-written summary
Recommended management gave the tallest plants across four stages.
- Taxon
- Aus ricet0
- Treatment
- M4e0
- Outcome
- tallest plante0
- Direction
- talleste0
- Value
- 27.11 cm, 49.66 cm, 71.49 cm and 91.07 cme0
Not reportedComparator
Verbatim
e0“the tallest plant (27.11 cm, 49.66 cm, 71.49 cm and 91.07 cm at 30, 50, 70 DAS and harvest, respectively), grain yield (2.34 t ha-1) and straw yield (5.30 t ha-1) were observed from M4”
t0“Aus Rice”
Claim · model-written summary
Recommended management produced grain yield of 2.34 t ha-1.
Not reportedComparatorDirection
Verbatim
e0“grain yield (2.34 t ha-1) and straw yield (5.30 t ha-1) were observed from M4”
t0“Aus Rice”
Claim · model-written summary
Recommended management produced straw yield of 5.30 t ha-1.
Not reportedComparatorDirection
Verbatim
e0“grain yield (2.34 t ha-1) and straw yield (5.30 t ha-1) were observed from M4”
t0“Aus Rice”
Claim · model-written summary
BRRI dhan65 with recommended management had highest grain yield of 2.43 t ha-1.
- Taxon
- Aus ricet0
- Material
- BRRI dhan65e0
- Treatment
- recommended managemente0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 2.43 t ha-1e0
Not reportedComparator
Verbatim
e0“the highest grain yield (2.43 t ha-1) and straw yield (5.31 t ha-1) were observed from V1M4 (BRRI dhan65 with recommended management)”
t0“Aus Rice”
Claim · model-written summary
BRRI dhan65 with recommended management had highest straw yield of 5.31 t ha-1.
- Taxon
- Aus ricet0
- Material
- BRRI dhan65e0
- Treatment
- recommended managemente0
- Outcome
- straw yielde0
- Direction
- higheste0
- Value
- 5.31 t ha-1e0
Not reportedComparator
Verbatim
e0“the highest grain yield (2.43 t ha-1) and straw yield (5.31 t ha-1) were observed from V1M4 (BRRI dhan65 with recommended management)”
t0“Aus Rice”
Claim · model-written summary
BRRI dhan65 with no management had lowest grain yield of 0.12 t ha-1.
- Taxon
- Aus ricet0
- Material
- BRRI dhan65e0
- Treatment
- no managemente0
- Outcome
- grain yielde0
- Direction
- loweste0
- Value
- 0.12 t ha-1e0
Not reportedComparator
Verbatim
e0“the lowest grain yield (0.12 t ha-1) from V1M0 (BRRI dhan65 with no management)”
t0“Aus Rice”
Claim · model-written summary
Nerica with no management had lowest straw yield of 0.85 t ha-1.
Not reportedComparatorDirection
Verbatim
e0“straw yield (0.85 t ha-1) from V2M0 (Nerica with no management)”
t0“Aus Rice”
Claim · model-written summary
No management reduced rice grain yield by 94-95%.
Not reportedComparator
Verbatim
e0“Irrespective of variety with no management reduced 94-95% grain yield of Aus rice”
Claim · model-written summary
No weeding reduced rice grain yield by 84-89%.
Not reportedComparatorDirection
Verbatim
e0“that was 84-89% for no weeding and no fertilizer application”
t0“Aus Rice Under Agronomic Managements”
e1“grain yield of Aus rice”
Claim · model-written summary
No fertilizer application reduced rice grain yield by 84-89%.
Not reportedComparatorDirection
Verbatim
e0“that was 84-89% for no weeding and no fertilizer application”
t0“Aus Rice Under Agronomic Managements”
e1“grain yield of Aus rice”
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