Abstract
A field experiment was conducted during growing seasons of 2014–15 and 2015–16 at College of Agriculture Farm, University of Agricultural Sciences, Raichur, Karnataka, to study the effect of nutrient management on cotton (Gossypium Hirsutum L.) productivity and leaf reddening for targeted yield on medium deep black soil under irrigation. Three yield targets (3, 4 and 5 t kapas yield/ha)-based site-specific nutrient management (SSNM) along with 4 leaf- reddening management (LRM) treatments (S1 , vermicompost @ 2.5 t/ha in seed line; S2 , S1 + MgSO4 10 kg/ha in seed line; S3 , S1 + MgSO4 25 kg/ha in seed line; and S4 , MgSO4 25 kg/ha in seed line + foliar nutrition of 1% MgSO4 + 19 : 19 : 19 + 1% KNO3 thrice during flowering, boll development and boll bursting stages) besides recommended control were tested using randomized complete block design. The SSNM for 5 t/ha yield target and supplementary nutrition of MgSO4 both to soil and to foliage and foliar application of major nutrients (19:19:19 and KNO3 ) (S4 ) resulted in significantly higher plant height (64, 140, 146 and 158 cm, respectively), monopodials (1.90, 3.0, 3.0 and 3.0) and sympodials/plant (10.3, 25.9, 27.5 and 32.3), nodes on main stem (16.4, 29.9, 31.8 and 37.8), leaf area (27.8, 98.0, 131.8 and 99.0 dm2 /plant) and leaf-area index/plant (0.51, 1.82, 2.4 and 1.83) at 45, 90 and 135 DAS and at final picking and dry-matter accumulation in leaves (63.4, 137.2 and 153.2 g/plant), stem (76.3, 146.6 and 161.3 g/plant) and reproductive parts (130.7, 146.3 and 161.0 g/plant) at 90, 135 days after sowing and at final picking. Consequently, the treatment also recorded significantly higher seed-cotton yield (5.35 t/ ha), harvest index (0.38 on pooled basis) and benefit: cost ratio (5.32) amongst all targets and LRM approaches, while recommended control fared poorly (2.84 t/ha, 0.37 and 4.14 kapas yield, harvest index and B : C ratio, respectively).
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Claims 8
Claim · model-written summary
The 5 t/ha SSNM target with S4 supplementary nutrition gave significantly higher plant height among the tested treatments.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- The SSNM for 5 t/ha yield target and supplementary nutrition of MgSO4 both to soil and to foliage and foliar application of major nutrients (19:19:19 and KNO3 ) (S4 )e0
- Outcome
- plant heighte0
- Direction
- highere0
- Value
- 64, 140, 146 and 158 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“The SSNM for 5 t/ha yield target and supplementary nutrition of MgSO4 both to soil and to foliage and foliar application of major nutrients (19:19:19 and KNO3 ) (S4 ) resulted in significantly higher plant height (64, 140, 146 and 158 cm, respectively)”
Claim · model-written summary
The treatment gave significantly higher monopodials and sympodials per plant.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- monopodialse0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“monopodials (1.90, 3.0, 3.0 and 3.0) and sympodials/plant (10.3, 25.9, 27.5 and 32.3)”
Claim · model-written summary
The treatment gave significantly higher nodes on the main stem.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- nodes on main steme0
- Value
- 16.4, 29.9, 31.8 and 37.8e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“nodes on main stem (16.4, 29.9, 31.8 and 37.8)”
Claim · model-written summary
The treatment gave significantly higher leaf area and leaf-area index per plant.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- leaf areae0
- Value
- 27.8, 98.0, 131.8 and 99.0 dm2 /plante0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“leaf area (27.8, 98.0, 131.8 and 99.0 dm2 /plant) and leaf-area index/plant (0.51, 1.82, 2.4 and 1.83)”
Claim · model-written summary
The treatment gave significantly higher dry-matter accumulation in leaves, stems and reproductive parts.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- dry-matter accumulation in leavese0
- Value
- 63.4, 137.2 and 153.2 g/plante0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“dry-matter accumulation in leaves (63.4, 137.2 and 153.2 g/plant), stem (76.3, 146.6 and 161.3 g/plant) and reproductive parts (130.7, 146.3 and 161.0 g/plant)”
Claim · model-written summary
The treatment produced significantly higher seed-cotton yield of 5.35 t/ ha than the recommended control at 2.84 t/ha.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- seed-cotton yielde0
- Direction
- highere0
- Value
- 5.35 t/ hae0
- Qualifier
- 2.84 t/hae0
- Comparator
- recommended controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“significantly higher seed-cotton yield (5.35 t/ ha), harvest index (0.38 on pooled basis) and benefit: cost ratio (5.32) amongst all targets and LRM approaches, while recommended control fared poorly (2.84 t/ha, 0.37 and 4.14 kapas yield, harvest index and B : C ratio, respectively)”
Claim · model-written summary
The treatment produced a significantly higher harvest index of 0.38 than the recommended control at 0.37.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- harvest indexe0
- Direction
- highere0
- Value
- 0.38e0
- Qualifier
- 0.37e0
- Comparator
- recommended controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“significantly higher seed-cotton yield (5.35 t/ ha), harvest index (0.38 on pooled basis) and benefit: cost ratio (5.32) amongst all targets and LRM approaches, while recommended control fared poorly (2.84 t/ha, 0.37 and 4.14 kapas yield, harvest index and B : C ratio, respectively)”
Claim · model-written summary
The treatment produced a significantly higher benefit: cost ratio of 5.32 than the recommended control at 4.14.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- benefit: cost ratioe0
- Direction
- highere0
- Value
- 5.32e0
- Qualifier
- 4.14e0
- Comparator
- recommended controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cotton (Gossypium hirsutum)”
e0“significantly higher seed-cotton yield (5.35 t/ ha), harvest index (0.38 on pooled basis) and benefit: cost ratio (5.32) amongst all targets and LRM approaches, while recommended control fared poorly (2.84 t/ha, 0.37 and 4.14 kapas yield, harvest index and B : C ratio, respectively)”
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