Abstract
Field experiments were conducted during kharif 2014 and 2015 at Agricultural Research Institute, Rajendranagar to assess the influence of irrigation schedule and nitrogen level for Bt cotton in alfisols in Southern Telangana. Irrigation scheduled at 0.8 IW/CPE (I1) recorded higher soil moisture content in 0-30 cm depth before and after irrigation. Rainfed (I3) cotton registered higher mean water use efficiency of 3.05 kg ha-1 mm-1 followed by irrigation at 0.4 IW/CPE (I2) and 0.8 IW/CPE (I1) which registered 3.00 kg ha-1mm-1 and 2.74 kg ha-1 mm-1, respectively. Higher soil moisture content before and after irrigation throughout the crop growing period in 0-15 cm and 15-30 cm soil depth and higher water use efficiency (2.88 and 3.90 kg ha-1mm-1) was recorded with N4 (225 kg ha-1) over lower levels of nitrogen application. From the experiment, considering the net returns and B:C ratio it can be concluded that, higher seed cotton yield can be obtained with the irrigation scheduled at 0.4 IW/CPE and application of nitrogen at 150 kg ha-1 in Bt cotton in alfisols.
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Claims 7
Claim · model-written summary
Irrigation at 0.8 IW/CPE gave higher soil moisture content in the 0-30 cm depth before and after irrigation.
- Taxon
- Bt cottont0
- Treatment
- Irrigation scheduled at 0.8 IW/CPE (I1)e1
- Outcome
- soil moisture contente1
- Direction
- highere1
Not reportedComparator
Verbatim
e1“Irrigation scheduled at 0.8 IW/CPE (I1) recorded higher soil moisture content in 0-30 cm depth before and after irrigation”
t0“in Bt cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Rainfed cotton had higher mean water use efficiency, 3.05 kg ha-1 mm-1.
- Taxon
- Bt cottont0
- Treatment
- Rainfed (I3)e2
- Outcome
- mean water use efficiencye2
- Direction
- highere2
- Value
- 3.05 kg ha-1 mm-1e2
Not reportedComparator
Verbatim
e2“Rainfed (I3) cotton registered higher mean water use efficiency of 3.05 kg ha-1 mm-1 followed by irrigation at 0.4 IW/CPE (I2) and 0.8 IW/CPE (I1) which registered 3.00 kg ha-1mm-1 and 2.74 kg ha-1 mm-1, respectively”
t0“in Bt cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Irrigation at 0.4 IW/CPE gave lower water use efficiency than rainfed cotton, 3.00 kg ha-1mm-1.
Verbatim
e2“Rainfed (I3) cotton registered higher mean water use efficiency of 3.05 kg ha-1 mm-1 followed by irrigation at 0.4 IW/CPE (I2) and 0.8 IW/CPE (I1) which registered 3.00 kg ha-1mm-1 and 2.74 kg ha-1 mm-1, respectively”
t0“in Bt cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Irrigation at 0.8 IW/CPE gave lower water use efficiency than rainfed cotton, 2.74 kg ha-1 mm-1.
Verbatim
e2“Rainfed (I3) cotton registered higher mean water use efficiency of 3.05 kg ha-1 mm-1 followed by irrigation at 0.4 IW/CPE (I2) and 0.8 IW/CPE (I1) which registered 3.00 kg ha-1mm-1 and 2.74 kg ha-1 mm-1, respectively”
t0“in Bt cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Nitrogen at 225 kg ha-1 gave higher soil moisture content before and after irrigation in 0-15 cm and 15-30 cm depths.
Verbatim
e3“Higher soil moisture content before and after irrigation throughout the crop growing period in 0-15 cm and 15-30 cm soil depth and higher water use efficiency (2.88 and 3.90 kg ha-1mm-1) was recorded with N4 (225 kg ha-1) over lower levels of nitrogen application”
t0“in Bt cotton (Gossypium hirsutum L.)”
Claim · model-written summary
Nitrogen at 225 kg ha-1 gave higher water use efficiency, 2.88 and 3.90 kg ha-1mm-1, than lower nitrogen levels.
Verbatim
e3“Higher soil moisture content before and after irrigation throughout the crop growing period in 0-15 cm and 15-30 cm soil depth and higher water use efficiency (2.88 and 3.90 kg ha-1mm-1) was recorded with N4 (225 kg ha-1) over lower levels of nitrogen application”
t0“in Bt cotton (Gossypium hirsutum L.)”
Claim · model-written summary
The authors recommend irrigation at 0.4 IW/CPE with 150 kg ha-1 nitrogen for higher seed cotton yield in Bt cotton on alfisols.
Verbatim
e5“higher seed cotton yield can be obtained with the irrigation scheduled at 0.4 IW/CPE and application of nitrogen at 150 kg ha-1 in Bt cotton in alfisols”
t0“in Bt cotton (Gossypium hirsutum L.)”
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