Abstract
Aggressive water stress and low productivity of rice are driving the exploration for location specific feasible agronomic management practices to increase water productivity and yield potential in rice farming. Field experiments were conducted to study the rice production using modified methods of irrigation and integrated nitrogen management, at Annamalai University Experimental Farm, Tamil Nadu, India during Kuruvai(June-October) and Navarai(Jan-April) rice growing seasons of 2016 and 2017. Two irrigation regimes viz., alternate wetting and slight soil drying (when soil moisture content reaches 75% level of the field capacity) and alternate wetting and acute soil drying (when soil moisture content reaches 50% level of the field capacity) and four nutrient management practices viz., RDF as control, 50% N through legume based green leaf manuring (GLM), 50% N through non-legume based GLM and 50% N through mixture of legume and non-legume based GLM (1: 1 ratio). The results reveled that irrigation management involving alternative wetting with acute soil drying along with 50 per cent of recommended dose of nitrogen (60 kg/ha) as mixture of legume and non-legume GLM (1: 1 ratio) and remaining 50 per cent of nitrogen as inorganic source registered the higher values of plant height of 101.76 and 97.11 cm, number of tillers/m2 of 438.10 and 384.64, DMP of 11.34 and 11.39 t/ha, root volume of 22.07 and 18.39 cc, LAI of 5.32 and 4.71 and CGR of 15.26 and 14.56 mg/m2/day during Kuruvai and Navarai seasons, respectively. Therefore, this treatment combination is used for wet spot-seeded rice cultivation in coastal regions of Tamil Nadu.
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Claims 7
Claim · model-written summary
The combined irrigation and green leaf manure regimen produced higher plant height, with 101.76 and 97.11 cm across Kuruvai and Navarai.
- Taxon
- rice
Oryza sativae2 - Treatment
- alternative wetting with acute soil dryinge0
- Outcome
- plant heighte1
- Direction
- highere0
- Value
- 101.76 and 97.11 cme1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation management involving alternative wetting with acute soil drying along with 50 per cent of recommended dose of nitrogen (60 kg/ha) as mixture of legume and non-legume GLM (1: 1 ratio) and remaining 50 per cent of nitrogen as inorganic source registered the higher values”
e1“plant height of 101.76 and 97.11 cm, number of tillers/m2 of 438.10 and 384.64, DMP of 11.34 and 11.39 t/ha, root volume of 22.07 and 18.39 cc, LAI of 5.32 and 4.71 and CGR of 15.26 and 14.56 mg/m2/day during Kuruvai and Navarai seasons, respectively.”
e2“rice production”
Claim · model-written summary
The combined irrigation and green leaf manure regimen produced higher number of tillers/m2, with 438.10 and 384.64 across Kuruvai and Navarai.
- Taxon
- riceOryza sativae2
- Treatment
- alternative wetting with acute soil dryinge0
- Outcome
- number of tillers/m2e1
- Direction
- highere0
- Value
- 438.10 and 384.64e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation management involving alternative wetting with acute soil drying along with 50 per cent of recommended dose of nitrogen (60 kg/ha) as mixture of legume and non-legume GLM (1: 1 ratio) and remaining 50 per cent of nitrogen as inorganic source registered the higher values”
e1“plant height of 101.76 and 97.11 cm, number of tillers/m2 of 438.10 and 384.64, DMP of 11.34 and 11.39 t/ha, root volume of 22.07 and 18.39 cc, LAI of 5.32 and 4.71 and CGR of 15.26 and 14.56 mg/m2/day during Kuruvai and Navarai seasons, respectively.”
e2“rice production”
Claim · model-written summary
The combined irrigation and green leaf manure regimen produced higher DMP, with 11.34 and 11.39 t/ha across Kuruvai and Navarai.
- Taxon
- riceOryza sativae2
- Treatment
- alternative wetting with acute soil dryinge0
- Outcome
- DMPe1
- Direction
- highere0
- Value
- 11.34 and 11.39 t/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation management involving alternative wetting with acute soil drying along with 50 per cent of recommended dose of nitrogen (60 kg/ha) as mixture of legume and non-legume GLM (1: 1 ratio) and remaining 50 per cent of nitrogen as inorganic source registered the higher values”
e1“plant height of 101.76 and 97.11 cm, number of tillers/m2 of 438.10 and 384.64, DMP of 11.34 and 11.39 t/ha, root volume of 22.07 and 18.39 cc, LAI of 5.32 and 4.71 and CGR of 15.26 and 14.56 mg/m2/day during Kuruvai and Navarai seasons, respectively.”
e2“rice production”
Claim · model-written summary
The combined irrigation and green leaf manure regimen produced higher root volume, with 22.07 and 18.39 cc across Kuruvai and Navarai.
- Taxon
- riceOryza sativae2
- Treatment
- alternative wetting with acute soil dryinge0
- Outcome
- root volumee1
- Direction
- highere0
- Value
- 22.07 and 18.39 cce1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation management involving alternative wetting with acute soil drying along with 50 per cent of recommended dose of nitrogen (60 kg/ha) as mixture of legume and non-legume GLM (1: 1 ratio) and remaining 50 per cent of nitrogen as inorganic source registered the higher values”
e1“plant height of 101.76 and 97.11 cm, number of tillers/m2 of 438.10 and 384.64, DMP of 11.34 and 11.39 t/ha, root volume of 22.07 and 18.39 cc, LAI of 5.32 and 4.71 and CGR of 15.26 and 14.56 mg/m2/day during Kuruvai and Navarai seasons, respectively.”
e2“rice production”
Claim · model-written summary
The combined irrigation and green leaf manure regimen produced higher LAI, with 5.32 and 4.71 across Kuruvai and Navarai.
- Taxon
- riceOryza sativae2
- Treatment
- alternative wetting with acute soil dryinge0
- Outcome
- LAIe1
- Direction
- highere0
- Value
- 5.32 and 4.71e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation management involving alternative wetting with acute soil drying along with 50 per cent of recommended dose of nitrogen (60 kg/ha) as mixture of legume and non-legume GLM (1: 1 ratio) and remaining 50 per cent of nitrogen as inorganic source registered the higher values”
e1“plant height of 101.76 and 97.11 cm, number of tillers/m2 of 438.10 and 384.64, DMP of 11.34 and 11.39 t/ha, root volume of 22.07 and 18.39 cc, LAI of 5.32 and 4.71 and CGR of 15.26 and 14.56 mg/m2/day during Kuruvai and Navarai seasons, respectively.”
e2“rice production”
Claim · model-written summary
The combined irrigation and green leaf manure regimen produced higher CGR, with 15.26 and 14.56 mg/m2/day across Kuruvai and Navarai.
- Taxon
- riceOryza sativae2
- Treatment
- alternative wetting with acute soil dryinge0
- Outcome
- CGRe1
- Direction
- highere0
- Value
- 15.26 and 14.56 mg/m2/daye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation management involving alternative wetting with acute soil drying along with 50 per cent of recommended dose of nitrogen (60 kg/ha) as mixture of legume and non-legume GLM (1: 1 ratio) and remaining 50 per cent of nitrogen as inorganic source registered the higher values”
e1“plant height of 101.76 and 97.11 cm, number of tillers/m2 of 438.10 and 384.64, DMP of 11.34 and 11.39 t/ha, root volume of 22.07 and 18.39 cc, LAI of 5.32 and 4.71 and CGR of 15.26 and 14.56 mg/m2/day during Kuruvai and Navarai seasons, respectively.”
e2“rice production”
Claim · model-written summary
The authors recommend this combined regimen for wet spot-seeded rice in coastal Tamil Nadu.
- Taxon
- riceOryza sativae0
- Outcome
- this treatment combination is used for wet spot-seeded rice cultivatione0
- Setting
- coastal regions of Tamil Nadue0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Therefore, this treatment combination is used for wet spot-seeded rice cultivation in coastal regions of Tamil Nadu.”
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