Abstract
An experiment was conducted to study the influence of irrigation and nitrogen on oil (%) and seed yield of ‘Arun Hybrid’ of sunflower (Helianthus annuus L.). Significant increase in yield (17.4 and 18.0 q/ha) was recorded up to 3 irrigations with IW: CPE ratio of 0.8. Oil yield and net returns were also maximum at this level. The crop showed significant response up to 40 kg N/ha. The leaf-area index and other ancillary characters were also maximum in case of 3 irrigations and 40 kg N/ha. Oil (%) and water-use efficiency were higher at 1 irrigation but from the economic point of view, 3 irrigations resulted in more net returns. Soil-moisture depletion in 0–60 cm layer was higher than that in 60–90 cm soil layer, but the relative depletion in 60–90 cm layer was more in rainfed due to penetration of roots in search of soil moisture.
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Claims 9
Claim · model-written summary
Yield rose significantly up to three irrigations at IW:CPE 0.8.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- 3 irrigations with IW: CPE ratio of 0.8e0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 17.4 and 18.0 q/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increase in yield (17.4 and 18.0 q/ha) was recorded up to 3 irrigations with IW: CPE ratio of 0.8”
t0“sunflower”
Claim · model-written summary
Oil yield was maximal at three irrigations.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- this levele0
- Outcome
- Oil yielde0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil yield and net returns were also maximum at this level”
t0“sunflower”
Claim · model-written summary
Net returns were maximal at three irrigations.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- this levele0
- Outcome
- net returnse0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil yield and net returns were also maximum at this level”
t0“sunflower”
Claim · model-written summary
The crop responded significantly to nitrogen up to 40 kg N/ha.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 40 kg N/hae0
- Outcome
- responsee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crop showed significant response up to 40 kg N/ha”
t0“sunflower”
Claim · model-written summary
Leaf-area index and ancillary traits were maximal with three irrigations and 40 kg N/ha.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 3 irrigations and 40 kg N/hae0
- Outcome
- leaf-area index and other ancillary characterse0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf-area index and other ancillary characters were also maximum in case of 3 irrigations and 40 kg N/ha”
t0“sunflower”
Claim · model-written summary
Oil percentage was higher with one irrigation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 1 irrigatione0
- Outcome
- Oil (%)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil (%) and water-use efficiency were higher at 1 irrigation”
t0“sunflower”
Claim · model-written summary
Water-use efficiency was higher with one irrigation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 1 irrigatione0
- Outcome
- water-use efficiencye0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil (%) and water-use efficiency were higher at 1 irrigation”
t0“sunflower”
Claim · model-written summary
Soil moisture depletion was higher in the 0–60 cm than the 60–90 cm layer.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- Soil-moisture depletione0
- Direction
- highere0
- Comparator
- 60–90 cm soil layere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil-moisture depletion in 0–60 cm layer was higher than that in 60–90 cm soil layer”
t0“sunflower”
Claim · model-written summary
Relative depletion in the 60–90 cm layer was greater under rainfed conditions.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- relative depletion in 60–90 cm layere0
- Direction
- moree0
- Setting
- rainfede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative depletion in 60–90 cm layer was more in rainfed due to penetration of roots in search of soil moisture”
t0“sunflower”
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- no effect
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See all 165 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.