Abstract
The effects of rice chaff, rice straw powder, duckweed ( Lemna spp. ) and overlapping azolla, Azolla imbri-cata (Roxb. ) Nakai on rice growth and yields, and their control efficacy against weeds and rice sheath blight (Rhizocoto-nia solani Kilhn) were studied in greenhouse and paddy fields. The results indicated that there were no significant negative effect on rice tiller, plants height, biomass production and yields by using rice chaff, rice straw powder, duckweed and overlapping azolla alone. However, it significantly inhibited the germination of barnyardgrass (Echinochloa crusgalli) and reduced its biomass production. The effects on plants height and biomass production of transplanted weeds difformed aglin-gale ( Cyperus difformis) , sheathed monochoria ( Monochoria vaginali) and needle spikesedge ( Eieocharis yokoscensis ) were different. The control efficacy against weeds and sheath blight disease were significantly improved by using rice chaff combined with duckweed, whereas there was no obvious negative effect on rice.
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Claims 9
Claim · model-written summary
Rice chaff alone had no significant negative effect on rice tillers, height, biomass or yield.
- Taxon
- rice
Oryza sativae0 - Treatment
- rice chaffe0
- Outcome
- rice tiller, plants height, biomass production and yieldse0
- Direction
- no significant negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant negative effect on rice tiller, plants height, biomass production and yields by using rice chaff, rice straw powder, duckweed and overlapping azolla alone.”
Claim · model-written summary
Rice straw powder alone had no significant negative effect on rice tillers, height, biomass or yield.
- Taxon
- riceOryza sativae0
- Treatment
- rice straw powdere0
- Outcome
- rice tiller, plants height, biomass production and yieldse0
- Direction
- no significant negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant negative effect on rice tiller, plants height, biomass production and yields by using rice chaff, rice straw powder, duckweed and overlapping azolla alone.”
Claim · model-written summary
Duckweed alone had no significant negative effect on rice tillers, height, biomass or yield.
- Taxon
- riceOryza sativae0
- Treatment
- duckweede0
- Outcome
- rice tiller, plants height, biomass production and yieldse0
- Direction
- no significant negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant negative effect on rice tiller, plants height, biomass production and yields by using rice chaff, rice straw powder, duckweed and overlapping azolla alone.”
Claim · model-written summary
Overlapping azolla alone had no significant negative effect on rice tillers, height, biomass or yield.
- Taxon
- riceOryza sativae0
- Treatment
- overlapping azollae0
- Outcome
- rice tiller, plants height, biomass production and yieldse0
- Direction
- no significant negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant negative effect on rice tiller, plants height, biomass production and yields by using rice chaff, rice straw powder, duckweed and overlapping azolla alone.”
Claim · model-written summary
The treatments significantly inhibited barnyardgrass germination and reduced its biomass.
- Interactor
- barnyardgrass
Echinochloa crus-gallie0weed - Outcome
- germination of barnyardgrasse0
- Direction
- inhibitede0
Not reportedTaxonTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, it significantly inhibited the germination of barnyardgrass (Echinochloa crusgalli) and reduced its biomass production.”
Claim · model-written summary
The cover treatments differed in effects on height and biomass of three transplanted weed species.
- Interactor
- transplanted weedse0weed
- Outcome
- plants height and biomass production of transplanted weedse0
- Direction
- differente0
Not reportedTaxon
Verbatim
e0“The effects on plants height and biomass production of transplanted weeds difformed aglin-gale ( Cyperus difformis) , sheathed monochoria ( Monochoria vaginali) and needle spikesedge ( Eieocharis yokoscensis ) were different.”
Claim · model-written summary
Rice chaff combined with duckweed significantly improved weed control.
- Taxon
- riceOryza sativae0
- Treatment
- rice chaff combined with duckweede0
- Interactor
- weedse0weed
- Outcome
- control efficacy against weedse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The control efficacy against weeds and sheath blight disease were significantly improved by using rice chaff combined with duckweed”
Claim · model-written summary
Rice chaff combined with duckweed significantly improved sheath blight control.
- Taxon
- riceOryza sativae0
- Treatment
- rice chaff combined with duckweede0
- Outcome
- sheath blight diseasee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The control efficacy against weeds and sheath blight disease were significantly improved by using rice chaff combined with duckweed”
Claim · model-written summary
Rice chaff combined with duckweed had no obvious negative effect on rice.
- Taxon
- riceOryza sativae0
- Outcome
- ricee0
- Direction
- no obvious negative effecte0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no obvious negative effect on rice.”
The same questions in other papers
Lemna · yield · Oryza sativa (rice)Positive and negative results
2 in the opposite direction
- positive
- positive
Lemna · weed · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
botanical · yield · Oryza sativa (rice)Results differ
14 papers in the same direction as this paper · 193 in the opposite direction
- positive
- positive
- positive
204 papers more in this group
See all 208 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.