Abstract
A field experiment was conducted during the two 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, topping, intercropping and sowing time with two levels in each treatment. The results of pooled data of 2 years revealed that Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height, crop growth rate as well as seed cotton and stalk yields, seed cotton equivalent yield, oil yield while significantly higher number of sympodial branches per plant, relative growth rate, number of brusted bolls per plant, weight of seed cotton per boll and seed cotton yield per plant with wider spacing of 120 cm × 60 cm. 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 on last week of May significantly produced significantly higher seed cotton yield and seed cotton equivalent S1T2I2D1 [Advance sowing (Last week of May) at plant spacing of 60 cm × 45 cm along with topping 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
Bt cotton at 60 cm × 45 cm spacing had higher plant height and crop growth rate than at 120 cm × 60 cm spacing.
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 and stalk yields, seed cotton equivalent yield, oil yield”
e1“with wider spacing of 120 cm × 60 cm”
Claim · model-written summary
Bt cotton at 60 cm × 45 cm spacing had higher seed cotton and stalk yields than at 120 cm × 60 cm spacing.
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 and stalk yields, seed cotton equivalent yield, oil yield”
e1“with wider spacing of 120 cm × 60 cm”
Claim · model-written summary
Bt cotton at 60 cm × 45 cm spacing had higher seed cotton equivalent yield and oil yield than at 120 cm × 60 cm spacing.
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 and stalk yields, seed cotton equivalent yield, oil yield”
e1“with wider spacing of 120 cm × 60 cm”
Claim · model-written summary
Bt cotton at 120 cm × 60 cm spacing had higher sympodial branches, relative growth rate and brusted bolls per plant than at 60 cm × 45 cm.
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 and stalk yields, seed cotton equivalent yield, oil yield”
e1“significantly higher number of sympodial branches per plant, relative growth rate, number of brusted bolls per plant, weight of seed cotton per boll and seed cotton yield per plant with wider spacing of 120 cm × 60 cm”
Claim · model-written summary
Bt cotton at 120 cm × 60 cm spacing had higher seed cotton weight per boll and seed cotton yield per plant than at 60 cm × 45 cm.
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 and stalk yields, seed cotton equivalent yield, oil yield”
e1“significantly higher number of sympodial branches per plant, relative growth rate, number of brusted bolls per plant, weight of seed cotton per boll and seed cotton yield per plant with wider spacing of 120 cm × 60 cm”
Claim · model-written summary
Topping at 75 DAS improved growth and yield attributes of Bt cotton.
- Taxon
- Bt cottone0
- Treatment
- Topping carried out at 75 DASe2
- Outcome
- growth and yield attributese2
- Direction
- improvede2
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height”
e2“Topping carried out at 75 DAS remarkably improved growth and yield attributes, seed cotton and stalk yields, seed cotton equivalent yield, oil yield”
Claim · model-written summary
Topping at 75 DAS improved seed cotton and stalk yields of Bt cotton.
- Taxon
- Bt cottone0
- Treatment
- Topping carried out at 75 DASe2
- Outcome
- seed cotton and stalk yieldse2
- Direction
- improvede2
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height”
e2“Topping carried out at 75 DAS remarkably improved growth and yield attributes, seed cotton and stalk yields, seed cotton equivalent yield, oil yield”
Claim · model-written summary
Topping at 75 DAS improved seed cotton equivalent yield and oil yield of Bt cotton.
- Taxon
- Bt cottone0
- Treatment
- Topping carried out at 75 DASe2
- Outcome
- seed cotton equivalent yield, oil yielde2
- Direction
- improvede2
Not reportedComparator
Verbatim
e0“Bt cotton sown at spacing of 60 cm × 45 cm recorded significantly higher plant height”
e2“Topping carried out at 75 DAS remarkably improved growth and yield attributes, seed cotton and stalk yields, seed cotton equivalent yield, oil yield”
Claim · model-written summary
Bt cotton without intercrop had higher growth and yield attributes and seed cotton yield.
- Taxon
- Bt cottone3
- Treatment
- without intercrope3
- Outcome
- growth and yield attributes as well as seed cotton yielde3
- Direction
- highere3
Not reportedComparator
Verbatim
e3“All growth and yield attributes as well as seed cotton yield were recorded significantly higher without intercrop in Bt cotton”
Claim · model-written summary
Intercropping Bt cotton with greengram gave higher seed cotton equivalent yield than no intercropping in pooled mean.
Verbatim
e4“Though intercropping of greengram (additive series) in Bt cotton produced significantly higher seed cotton equivalent yield than no intercropping in pooled mean”
Claim · model-written summary
Advance sowing of Bt cotton on the last week of May produced higher seed cotton yield and seed cotton equivalent yield.
- Taxon
- Bt. cottone5
- Treatment
- Advance sowing of Bt. cotton on last week of Maye5
- Outcome
- seed cotton yield and seed cotton equivalente5
- Direction
- highere5
Not reportedComparator
Verbatim
e5“Advance sowing of Bt. cotton on last week of May significantly produced significantly higher seed cotton yield and seed cotton equivalent”
Claim · model-written summary
The S1T2I2D1 combination gave higher seed cotton equivalent yield, net returns and B:C ratio of Bt cotton.
- Taxon
- Bt. cottone6
- Treatment
- Advance sowing (Last week of May) at plant spacing of 60 cm × 45 cm along with topping at 75 DAS and intercropping with greengrame6
- Outcome
- seed cotton equivalent yield as well as net returns and B: C ratioe6
- Direction
- highere6
Not reportedComparator
Verbatim
e6“S1T2I2D1 [Advance sowing (Last week of May) at plant spacing of 60 cm × 45 cm along with topping 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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