Abstract
To evaluate the effects of potassium and nitrogen fertilizers on yield and lodging characteristics of Gilaneh rice cultivar under two irrigation regimes (permanent flooding and irrigation with to 10 days interval) a field split split plot experiment based on complete randomized block design with 3 replications in Rasht. Nitrogen and potassium fertilizers used were at the 0, 60 and 120 kg.ha-1 and 0, 80 and 160 kg.ha-1 as sub and sub sub factor, respectively. The results showed that the highest seed yield obtained about 3713 kg.ha-1 from permanent flooding with the application of 120 kg.ha-1 of nitrogen fertilizer and 80 kg.ha-1 of potassium fertilizer and the lowest yield 634 kg.ha-1 from 10 days irrigation interval, without using of potassium and nitrogen fertilizers. The 10-day irrigation interval reduced the bending moment of the internode 4 by 40%. With increasing the rate of potassium fertilizer, the lodging index of intermediate 4 decreased, which was due to the increase of cellulose content by 60% in this intermediate. Increasing nitrogen and potassium fertilizers decreased the lodging index at internodes 3 and 4. Irrigation at 10 days intervals decreased plant height, internode bending moment, cellulose and hemicellulose and seed yield It increased lodging index of intermediate, butincreasing fertilizer levels in both irrigation regimes had adverse effect on the traits under study.
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Claims 11
Claim · model-written summary
Permanent flooding with 120 kg.ha-1 nitrogen and 80 kg.ha-1 potassium produced the highest seed yield, about 3713 kg.ha-1.
- Taxon
- Rice (Oryza sativa L.)
Oryza sativat0 - Treatment
- permanent flooding with the application of 120 kg.ha-1 of nitrogen fertilizer and 80 kg.ha-1 of potassium fertilizere0
- Outcome
- seed yielde0
- Direction
- higheste0
- Value
- 3713 kg.ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest seed yield obtained about 3713 kg.ha-1 from permanent flooding with the application of 120 kg.ha-1 of nitrogen fertilizer and 80 kg.ha-1 of potassium fertilizer”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
The 10-day irrigation interval without nitrogen or potassium gave the lowest yield, 634 kg.ha-1.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- 10 days irrigation interval, without using of potassium and nitrogen fertilizerse0
- Outcome
- yielde0
- Direction
- loweste0
- Value
- 634 kg.ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest yield 634 kg.ha-1 from 10 days irrigation interval, without using of potassium and nitrogen fertilizers”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
A 10-day irrigation interval reduced internode 4 bending moment by 40%.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- 10-day irrigation intervale0
- Outcome
- bending moment of the internode 4e0
- Direction
- reducede0
- Value
- 40%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 10-day irrigation interval reduced the bending moment of the internode 4 by 40%”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Increasing potassium fertilizer decreased the lodging index of internode 4.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- increasing the rate of potassium fertilizere0
- Outcome
- lodging index of intermediate 4e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing the rate of potassium fertilizer, the lodging index of intermediate 4 decreased”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Increasing potassium fertilizer increased cellulose content in internode 4 by 60%, which the authors linked to decreased lodging.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Outcome
- cellulose contente0
- Direction
- increasee0
- Value
- 60%e0
- Qualifier
- in this intermediatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which was due to the increase of cellulose content by 60% in this intermediate”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Increasing nitrogen and potassium fertilizers decreased lodging indices at internodes 3 and 4.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Increasing nitrogen and potassium fertilizerse0
- Outcome
- lodging index at internodes 3 and 4e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing nitrogen and potassium fertilizers decreased the lodging index at internodes 3 and 4”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Irrigation at 10-day intervals decreased plant height.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Irrigation at 10 days intervalse0
- Outcome
- plant heighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 10 days intervals decreased plant height, internode bending moment, cellulose and hemicellulose and seed yield”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Irrigation at 10-day intervals decreased internode bending moment.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Irrigation at 10 days intervalse0
- Outcome
- internode bending momente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 10 days intervals decreased plant height, internode bending moment, cellulose and hemicellulose and seed yield”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Irrigation at 10-day intervals decreased cellulose and hemicellulose.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Irrigation at 10 days intervalse0
- Outcome
- cellulose and hemicellulosee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 10 days intervals decreased plant height, internode bending moment, cellulose and hemicellulose and seed yield”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Irrigation at 10-day intervals decreased seed yield.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Irrigation at 10 days intervalse0
- Outcome
- seed yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 10 days intervals decreased plant height, internode bending moment, cellulose and hemicellulose and seed yield”
t0“Rice (Oryza sativa L.)”
Claim · model-written summary
Irrigation at 10-day intervals increased the lodging index.
- Taxon
- Rice (Oryza sativa L.)Oryza sativat0
- Treatment
- Irrigation at 10 days intervalse0
- Outcome
- lodging index of intermediatee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation at 10 days intervals decreased plant height, internode bending moment, cellulose and hemicellulose and seed yield It increased lodging index of intermediate”
t0“Rice (Oryza sativa L.)”
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