Abstract
A field experiment was conducted during 2006 and 2007 at Agricultural College, Naira on the response of rice (Oryza sativa L.) varieties to graded levels of nitrogen. Plant height, leaf area index, root volume and dry matter production were the highest with Vasundhara and 120 kg N/ha at all the stages during both the years of study. Panicles/m2, filled grains/panicle, grain yield (4.51 and 4.30 t/ha) and straw yield and nitrogen uptake by grain and straw were also significantly higher in the variety Vasundhara. Increasing levels of nitrogen progressively enhanced panicles/m2, filled grains/panicle, grain and straw yield and nitrogen uptake by grain and straw only up to 120 kg N/ha. Varieties and nitrogen levels interacted significantly and the highest grain yield and economics were recorded with Vasundhara at 120 kg N/ha and it was found to be optimum combination for aerobic rice.
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Claims 11
Claim · model-written summary
Plant height, leaf area index and root volume were highest with Vasundhara and 120 kg N/ha.
- Taxon
- rice
Oryza sativat0 - Material
- Vasundharae1
- Treatment
- 120 kg N/hae1
- Outcome
- Plant height, leaf area index, root volumee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e1“Plant height, leaf area index, root volume and dry matter production were the highest with Vasundhara and 120 kg N/ha at all the stages during both the years of study”
Claim · model-written summary
Dry matter production was highest with Vasundhara and 120 kg N/ha.
- Taxon
- riceOryza sativat0
- Material
- Vasundharae1
- Treatment
- 120 kg N/hae1
- Outcome
- dry matter productione1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e1“Plant height, leaf area index, root volume and dry matter production were the highest with Vasundhara and 120 kg N/ha at all the stages during both the years of study”
Claim · model-written summary
Grain yield of Vasundhara was significantly higher, at 4.51 and 4.30 t/ha.
- Taxon
- riceOryza sativat0
- Material
- Vasundharae2
- Outcome
- grain yielde2
- Direction
- significantly highere2
- Value
- 4.51 and 4.30 t/hae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e2“Panicles/m2, filled grains/panicle, grain yield (4.51 and 4.30 t/ha) and straw yield and nitrogen uptake by grain and straw were also significantly higher in the variety Vasundhara”
Claim · model-written summary
Panicles/m2 and filled grains/panicle were significantly higher in Vasundhara.
- Taxon
- riceOryza sativat0
- Material
- Vasundharae2
- Outcome
- Panicles/m2, filled grains/paniclee2
- Direction
- significantly highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e2“Panicles/m2, filled grains/panicle, grain yield (4.51 and 4.30 t/ha) and straw yield and nitrogen uptake by grain and straw were also significantly higher in the variety Vasundhara”
Claim · model-written summary
Straw yield and nitrogen uptake by grain and straw were significantly higher in Vasundhara.
- Taxon
- riceOryza sativat0
- Material
- Vasundharae2
- Outcome
- straw yield and nitrogen uptake by grain and strawe2
- Direction
- significantly highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e2“Panicles/m2, filled grains/panicle, grain yield (4.51 and 4.30 t/ha) and straw yield and nitrogen uptake by grain and straw were also significantly higher in the variety Vasundhara”
Claim · model-written summary
Increasing nitrogen levels enhanced panicles/m2 and filled grains/panicle, only up to 120 kg N/ha.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing levels of nitrogene3
- Outcome
- panicles/m2, filled grains/paniclee3
- Direction
- enhancede3
- Qualifier
- only up to 120 kg N/hae3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e3“Increasing levels of nitrogen progressively enhanced panicles/m2, filled grains/panicle, grain and straw yield and nitrogen uptake by grain and straw only up to 120 kg N/ha”
Claim · model-written summary
Increasing nitrogen levels enhanced grain and straw yield, only up to 120 kg N/ha.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing levels of nitrogene3
- Outcome
- grain and straw yielde3
- Direction
- enhancede3
- Qualifier
- only up to 120 kg N/hae3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e3“Increasing levels of nitrogen progressively enhanced panicles/m2, filled grains/panicle, grain and straw yield and nitrogen uptake by grain and straw only up to 120 kg N/ha”
Claim · model-written summary
Increasing nitrogen levels enhanced nitrogen uptake by grain and straw, only up to 120 kg N/ha.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing levels of nitrogene3
- Outcome
- nitrogen uptake by grain and strawe3
- Direction
- enhancede3
- Qualifier
- only up to 120 kg N/hae3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e3“Increasing levels of nitrogen progressively enhanced panicles/m2, filled grains/panicle, grain and straw yield and nitrogen uptake by grain and straw only up to 120 kg N/ha”
Claim · model-written summary
Varieties and nitrogen levels interacted significantly.
- Taxon
- riceOryza sativat0
- Treatment
- nitrogen levelse4
- Outcome
- interactede4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e4“Varieties and nitrogen levels interacted significantly”
Claim · model-written summary
The highest grain yield and economics were recorded with Vasundhara at 120 kg N/ha.
- Taxon
- riceOryza sativat0
- Material
- Vasundharae5
- Treatment
- 120 kg N/hae5
- Outcome
- grain yield and economicse5
- Direction
- higheste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa)”
e5“the highest grain yield and economics were recorded with Vasundhara at 120 kg N/ha”
Claim · model-written summary
Vasundhara at 120 kg N/ha is the optimum combination for aerobic rice.
- Taxon
- riceOryza sativae6
- Outcome
- optimum combinatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“it was found to be optimum combination for aerobic rice”
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