Abstract
The results are presented of four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.) grown on Riverina clay. A study of the response to nitrogen, phosphorus, and sulphur showed that Echinochloa tillering was favoured as level of nutrient supply increased. Echinochloa severely depressed rice tillering and yield. Delayed application of nitrogen did not result in any increase in rice yield when competing with Echinochloa. In the absence of Echinochloa competition, rice tillering and grain yield responded to both added nitrogen and phosphorus, but there was no significant yield response to sulphur. Rice panicle production (fertile tillering) was strongly influenced by nutrient supply and was, in turn, related to final grain yield of rice.
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Claims 8
Claim · model-written summary
Echinochloa tillering was favoured as nutrient supply increased.
- Taxon
- rice
Oryza sativae0 - Treatment
- nutrient supplye1
- Interactor
- Echinochloa
Echinochloae1weed - Outcome
- Echinochloa tilleringe1
- Direction
- favourede1
- Setting
- glasshousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“Echinochloa tillering was favoured as level of nutrient supply increased”
Claim · model-written summary
Delayed nitrogen application did not increase rice yield when competing with Echinochloa.
- Taxon
- riceOryza sativae0
- Treatment
- Delayed application of nitrogene1
- Interactor
- EchinochloaEchinochloae1weed
- Outcome
- rice yielde1
- Direction
- any increasee1
- Setting
- glasshousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“Delayed application of nitrogen did not result in any increase in rice yield when competing with Echinochloa”
Claim · model-written summary
Added nitrogen increased rice tillering and grain yield in the absence of Echinochloa competition.
- Taxon
- riceOryza sativae0
- Treatment
- added nitrogene1
- Outcome
- rice tillering and grain yielde1
- Direction
- increaseinferrede1
- Qualifier
- In the absence of Echinochloa competitione1
- Setting
- glasshousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“In the absence of Echinochloa competition, rice tillering and grain yield responded to both added nitrogen and phosphorus, but there was no significant yield response to sulphur”
Claim · model-written summary
Added phosphorus increased rice tillering and grain yield in the absence of Echinochloa competition.
- Taxon
- riceOryza sativae0
- Treatment
- phosphoruse1
- Outcome
- rice tillering and grain yielde1
- Direction
- increaseinferrede1
- Qualifier
- In the absence of Echinochloa competitione1
- Setting
- glasshousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“In the absence of Echinochloa competition, rice tillering and grain yield responded to both added nitrogen and phosphorus, but there was no significant yield response to sulphur”
Claim · model-written summary
Sulphur did not significantly change rice grain yield in the absence of Echinochloa competition.
- Taxon
- riceOryza sativae0
- Treatment
- sulphure1
- Outcome
- grain yielde1
- Direction
- no_changeinferrede1
- Qualifier
- In the absence of Echinochloa competitione1
- Setting
- glasshousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“In the absence of Echinochloa competition, rice tillering and grain yield responded to both added nitrogen and phosphorus, but there was no significant yield response to sulphur”
Claim · model-written summary
Echinochloa severely depressed rice tillering and yield.
- Taxon
- riceOryza sativae0
- Interactor
- EchinochloaEchinochloae1weed
- Outcome
- rice tillering and yielde1
- Direction
- depressede1
- Setting
- glasshousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“Echinochloa severely depressed rice tillering and yield”
Claim · model-written summary
Rice panicle production was strongly influenced by nutrient supply.
- Taxon
- riceOryza sativae0
- Treatment
- nutrient supplye1
- Outcome
- Rice panicle production (fertile tillering)e1
- Setting
- glasshousee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“Rice panicle production (fertile tillering) was strongly influenced by nutrient supply and was, in turn, related to final grain yield of rice”
Claim · model-written summary
Rice panicle production was related to final grain yield.
- Taxon
- riceOryza sativae0
- Organ / stage
- paniclee1
- Outcome
- final grain yield of ricee1
- Setting
- glasshousee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four glasshouse experiments conducted at Deniliquin, New South Wales, investigating the competition between rice (Oryza sativa) and barnyard grass (Echinochloa spp.)”
e1“Rice panicle production (fertile tillering) was strongly influenced by nutrient supply and was, in turn, related to final grain yield of rice”
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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.