Abstract
An experiment with treatments comprising of five nitrogen rates (0, 120, 160, 200 and 240 kg N/ha) was carried out to assess the effects of nitrogen fertilization management practice on the grain yield and straw nutritive quality in two commercial rice varieties; MR 211 and MR 219. Increases in nitrogen application was found to increase (P<0.01) the grain yield, total spikelets per square meter, number of spikelets per panicle and straw crude protein from 4.56% to a maximum level of 8.45%. It also decreased (P<0.05) the in vitro true dry matter organic digestibility (IVTOMD) from 59.1% to 55.14%, neutral detergent fiber (NDF) and acid detergent fiber (ADF). There were varietal differences in the straw nutritional properties, where MR 219 had higher NDF, hemicellulose and cellulose (P<0.05) concentration where as MR 211 had higher amount of acid detergent lignin (ADL) (P<0.01) and silica (P<0.05) in the straw. Between the two varieties, MR 219 is superior to MR 211 in view of the higher grain production and grain: straw ratio. The result from correlation between agronomic characteristics and straw nutritive quality implies that rice varieties with good agronomic characteristics have potential in yielding straws with better nutritive quality.
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Claims 12
Claim · model-written summary
Nitrogen increased grain yield.
- Taxon
- rice
Oryza sativat1 - Treatment
- nitrogen applicatione0
- Outcome
- grain yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increases in nitrogen application was found to increase (P<0.01) the grain yield”
t1“commercial ricevarieties”
Claim · model-written summary
Nitrogen increased total spikelets per square meter.
- Taxon
- riceOryza sativat1
- Treatment
- nitrogen applicatione0
- Outcome
- total spikelets per square metere0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increases in nitrogen application was found to increase (P<0.01) the grain yield, total spikelets per square meter”
t1“commercial ricevarieties”
Claim · model-written summary
Nitrogen increased spikelets per panicle.
- Taxon
- riceOryza sativat1
- Treatment
- nitrogen applicatione0
- Outcome
- number of spikelets per paniclee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increases in nitrogen application was found to increase (P<0.01) the grain yield, total spikelets per square meter, number of spikelets per panicle”
t1“commercial ricevarieties”
Claim · model-written summary
Nitrogen increased straw crude protein from 4.56% to 8.45%.
- Taxon
- riceOryza sativat1
- Treatment
- nitrogen applicatione0
- Outcome
- straw crude proteine0
- Direction
- increasee0
- Value
- 8.45%e0
- Qualifier
- 4.56%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increases in nitrogen application was found to increase (P<0.01) the grain yield, total spikelets per square meter, number of spikelets per panicle and straw crude protein from 4.56% to a maximum level of 8.45%”
t1“commercial ricevarieties”
Claim · model-written summary
Nitrogen reduced straw digestibility from 59.1% to 55.14%.
- Taxon
- riceOryza sativat1
- Treatment
- nitrogen applicatione2
- Outcome
- in vitro true dry matter organic digestibility (IVTOMD)e0
- Direction
- decreasede0
- Value
- 55.14%e0
- Qualifier
- 59.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also decreased (P<0.05) the in vitro true dry matter organic digestibility (IVTOMD) from 59.1% to 55.14%”
t1“commercial ricevarieties”
e2“Increases in nitrogen application was found to increase (P<0.01) the grain yield”
Claim · model-written summary
Nitrogen reduced neutral detergent fiber.
- Taxon
- riceOryza sativat1
- Treatment
- nitrogen applicatione2
- Outcome
- neutral detergent fiber (NDF)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also decreased (P<0.05) the in vitro true dry matter organic digestibility (IVTOMD) from 59.1% to 55.14%, neutral detergent fiber (NDF)”
t1“commercial ricevarieties”
e2“Increases in nitrogen application was found to increase (P<0.01) the grain yield”
Claim · model-written summary
Nitrogen reduced acid detergent fiber.
- Taxon
- riceOryza sativat1
- Treatment
- nitrogen applicatione2
- Outcome
- acid detergent fiber (ADF)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also decreased (P<0.05) the in vitro true dry matter organic digestibility (IVTOMD) from 59.1% to 55.14%, neutral detergent fiber (NDF) and acid detergent fiber (ADF)”
t1“commercial ricevarieties”
e2“Increases in nitrogen application was found to increase (P<0.01) the grain yield”
Claim · model-written summary
MR 219 had higher straw NDF, hemicellulose and cellulose than MR 211.
- Taxon
- riceOryza sativat1
- Material
- MR 219e0
- Outcome
- NDF, hemicellulose and cellulosee0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MR 219 had higher NDF, hemicellulose and cellulose (P<0.05) concentration”
t1“commercial ricevarieties”
Claim · model-written summary
MR 211 had higher straw acid detergent lignin than MR 219.
- Taxon
- riceOryza sativat1
- Material
- MR 211e0
- Outcome
- acid detergent lignin (ADL)e0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MR 211 had higher amount of acid detergent lignin (ADL) (P<0.01)”
t1“commercial ricevarieties”
Claim · model-written summary
MR 211 had higher straw silica than MR 219.
- Taxon
- riceOryza sativat1
- Material
- MR 211e0
- Outcome
- silicae0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MR 211 had higher amount of acid detergent lignin (ADL) (P<0.01) and silica (P<0.05)”
t1“commercial ricevarieties”
Claim · model-written summary
MR 219 had higher grain production and grain to straw ratio than MR 211.
- Taxon
- riceOryza sativat1
- Material
- MR 219e0
- Outcome
- grain production and grain: straw ratioe0
- Direction
- highere0
- Comparator
- MR 211e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MR 219 is superior to MR 211 in view of the higher grain production and grain: straw ratio”
t1“commercial ricevarieties”
Claim · model-written summary
Good agronomic characteristics correlated with better straw nutritive quality.
- Taxon
- riceOryza sativae0
- Material
- rice varietiese0
- Outcome
- straws with better nutritive qualitye0
- Direction
- bettere0
- Qualifier
- good agronomic characteristicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice varieties with good agronomic characteristics have potential in yielding straws with better nutritive quality”
The same questions in other papers
nitrogen · quality: protein · Oryza sativa (rice)Results differ
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- no effect
- no effect
- negative
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See all 102 papers →nitrogen · yield · Oryza sativa (rice)Positive and negative results
1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative
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See all 2,045 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.