Abstract
A field experiment was conducted during the 2 consecutive kharif seasons of 2019 and 2020 at Agronomy Instructional Farm, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, to study the yield maximization of Bt cotton through agro-techniques in loamy sand. The experiment consisted of four factors viz; spacing, detopping, intercropping and sowing time with two levels in each treatment. The results of pooled data of 2 years indicated that Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height, crop growth rate as well as seed cotton (3077 kg/ha) and stalk yields (5930 kg/ha), seed cotton equivalent yield (3512 kg/ha) and oil yield (335 kg/ha). However, wider spacing of 120 cm × 60 cm produced remarkably higher number of sympodial branches per plant, relative growth rate, number of open bolls per plant, weight of seed cotton per boll and seed cotton yield per plant. Topping carried out at 75 DAS remarkably improved growth and yield attributes, seed cotton and stalk yields, seed cotton equivalent yield, oil yield. All growth and yield attributes as well as seed cotton yield were recorded significantly higher without intercrop in Bt cotton. Though intercropping of greengram (additive series) in Bt cotton produced significantly higher seed cotton equivalent yield than no intercropping in pooled mean. Advance sowing of Bt cotton in last week of May produced significantly higher seed cotton yield and seed cotton equivalent S1 T2I2 D1 [Advance sowing (Last week of May)] at plant spacing of 60 cm × 45 cm along with detopping at 75 DAS and intercropping with greengram] gave significantly higher seed cotton equivalent yield as well as net returns and B: C ratio of Bt cotton.
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Claims 12
Claim · model-written summary
Narrow spacing increased plant height and crop growth rate.
- Taxon
- Bt cottone0
- Treatment
- spacing of 60 cm × 45 cme0
- Outcome
- plant height, crop growth ratee0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height, crop growth rate”
t0“Bt cotton”
Claim · model-written summary
Narrow spacing increased seed cotton yield to 3077 kg/ha.
- Taxon
- Bt cottone0
- Treatment
- spacing of 60 cm × 45 cme0
- Outcome
- seed cottone0
- Direction
- highere0
- Value
- 3077 kg/hae0
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height, crop growth rate as well as seed cotton (3077 kg/ha) and stalk yields (5930 kg/ha), seed cotton equivalent yield (3512 kg/ha) and oil yield (335 kg/ha)”
Claim · model-written summary
Narrow spacing increased stalk yield to 5930 kg/ha.
- Taxon
- Bt cottone0
- Treatment
- spacing of 60 cm × 45 cme0
- Outcome
- stalk yieldse0
- Direction
- highere0
- Value
- 5930 kg/hae0
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height, crop growth rate as well as seed cotton (3077 kg/ha) and stalk yields (5930 kg/ha), seed cotton equivalent yield (3512 kg/ha) and oil yield (335 kg/ha)”
Claim · model-written summary
Narrow spacing increased equivalent yield to 3512 kg/ha.
- Taxon
- Bt cottone0
- Treatment
- spacing of 60 cm × 45 cme0
- Outcome
- seed cotton equivalent yielde0
- Direction
- highere0
- Value
- 3512 kg/hae0
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height, crop growth rate as well as seed cotton (3077 kg/ha) and stalk yields (5930 kg/ha), seed cotton equivalent yield (3512 kg/ha) and oil yield (335 kg/ha)”
Claim · model-written summary
Narrow spacing increased oil yield to 335 kg/ha.
- Taxon
- Bt cottone0
- Treatment
- spacing of 60 cm × 45 cme0
- Outcome
- oil yielde0
- Direction
- highere0
- Value
- 335 kg/hae0
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height, crop growth rate as well as seed cotton (3077 kg/ha) and stalk yields (5930 kg/ha), seed cotton equivalent yield (3512 kg/ha) and oil yield (335 kg/ha)”
Claim · model-written summary
Wider spacing increased branches, relative growth rate and open bolls per plant.
- Taxon
- Bt cottont0
- Treatment
- wider spacing of 120 cm × 60 cme0
- Outcome
- number of sympodial branches per plant, relative growth rate, number of open bolls per plante0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“wider spacing of 120 cm × 60 cm produced remarkably higher number of sympodial branches per plant, relative growth rate, number of open bolls per plant”
t0“Bt cotton”
Claim · model-written summary
Wider spacing increased boll weight and seed cotton yield per plant.
- Taxon
- Bt cottont0
- Treatment
- wider spacing of 120 cm × 60 cme0
- Outcome
- weight of seed cotton per boll and seed cotton yield per plante0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“wider spacing of 120 cm × 60 cm produced remarkably higher number of sympodial branches per plant, relative growth rate, number of open bolls per plant, weight of seed cotton per boll and seed cotton yield per plant”
t0“Bt cotton”
Claim · model-written summary
Topping at 75 DAS improved growth and yield attributes and yields.
- Taxon
- Bt cottont0
- Treatment
- Topping carried out at 75 DASe0
- Outcome
- growth and yield attributes, seed cotton and stalk yieldse0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“Topping carried out at 75 DAS remarkably improved growth and yield attributes, seed cotton and stalk yields, seed cotton equivalent yield, oil yield.”
t0“Bt cotton”
Claim · model-written summary
Cotton without intercrop had higher growth and yield attributes and seed cotton yield.
- Taxon
- Bt cottone0
- Treatment
- without intercrope0
- Outcome
- growth and yield attributes as well as seed cotton yielde0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“All growth and yield attributes as well as seed cotton yield were recorded significantly higher without intercrop in Bt cotton.”
Claim · model-written summary
Greengram intercropping increased equivalent cotton yield.
- Taxon
- Bt cottone0
- Treatment
- intercropping of greengram (additive series)e0
- Interactor
- greengram
.jpg?width=60)
Vigna radiata var. radiatae0weed - Outcome
- seed cotton equivalent yielde0
- Direction
- highere0
- Comparator
- no intercroppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“intercropping of greengram (additive series) in Bt cotton produced significantly higher seed cotton equivalent yield than no intercropping”
Claim · model-written summary
Late May sowing increased seed cotton yield and equivalent yield.
- Taxon
- Bt cottone0
- Treatment
- Advance sowing of Bt cotton in last week of Maye0
- Outcome
- seed cotton yield and seed cotton equivalente0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“Advance sowing of Bt cotton in last week of May produced significantly higher seed cotton yield and seed cotton equivalent”
t0“Bt cotton”
Claim · model-written summary
The combined sowing, spacing, topping and greengram treatment increased equivalent yield and net returns.
- Taxon
- Bt cottone0
- Treatment
- Advance sowing (Last week of May)] at plant spacing of 60 cm × 45 cm along with detopping at 75 DAS and intercropping with greengrame0
- Interactor
- greengramVigna radiata var. radiatae0weed
- Outcome
- seed cotton equivalent yield as well as net returns and B: C ratioe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S1 T2I2 D1 [Advance sowing (Last week of May)] at plant spacing of 60 cm × 45 cm along with detopping at 75 DAS and intercropping with greengram] gave significantly higher seed cotton equivalent yield as well as net returns and B: C ratio of Bt cotton.”
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