Abstract
Summary: Four field experiments were conducted at The International Rice Research Institute during the 1975 and 1976 crop seasons to develop minimum and zero tillage techniques for transplanted rice ( Oryza sativa L.). High rates of glyphosate followed by a lower rate of paraquat effectively controlled Paspalum distichum L., but not Fimbristylis littoralis L. The tenminimum tillage treatments based on different combinations and sequences of pre‐plant herbicide application, tillage and flooding, gave a similar grain yield to conventional tillage, and significantly higher grain yield than zero tillage treatments. Conventional, minimum and zero tillage were compared over four successive crops. After two crops with zero tillage, the plots were dominated by the perennials, P. distichum and Scirpus maritimus L., but with minimum or conventional tillage, weed control and grain yield were satisfactory. Efficiency of nitrogen fertilizer usage by the crop was the same with minimum as with conventional tillage but higher than with zero tillage and was increased by placement at 10 cm depth. The studies indicate that minimum tillage systems are a dependable alternative to conventional tillage for lowland rice production.
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Claims 11
Claim · model-written summary
High glyphosate followed by lower paraquat rates controlled Paspalum distichum.
- Taxon
- rice
Oryza sativat0 - Treatment
- High rates of glyphosate followed by a lower rate of paraquate0
- Interactor
- Paspalum distichum L.
Paspalum distichume0weed - Outcome
- controlled Paspalum distichum L.e0
- Direction
- effectively controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“High rates of glyphosate followed by a lower rate of paraquat effectively controlled Paspalum distichum L., but not Fimbristylis littoralis L.”
Claim · model-written summary
The same herbicide sequence did not control Fimbristylis littoralis.
- Taxon
- riceOryza sativat0
- Treatment
- High rates of glyphosate followed by a lower rate of paraquate0
- Interactor
- Fimbristylis littoralis L.
.jpg?width=60)
Fimbristylis littoralise0weed - Outcome
- not Fimbristylis littoralis L.e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“rice”
e0“High rates of glyphosate followed by a lower rate of paraquat effectively controlled Paspalum distichum L., but not Fimbristylis littoralis L.”
Claim · model-written summary
Minimum tillage treatments produced grain yield similar to conventional tillage.
- Taxon
- riceOryza sativat0
- Treatment
- tenminimum tillage treatmentse0
- Outcome
- grain yielde0
- Direction
- similare0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“The tenminimum tillage treatments based on different combinations and sequences of pre‐plant herbicide application, tillage and flooding, gave a similar grain yield to conventional tillage, and significantly higher grain yield than zero tillage treatments.”
Claim · model-written summary
Minimum tillage treatments produced significantly higher grain yield than zero tillage.
- Taxon
- riceOryza sativat0
- Treatment
- tenminimum tillage treatmentse0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- zero tillage treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“The tenminimum tillage treatments based on different combinations and sequences of pre‐plant herbicide application, tillage and flooding, gave a similar grain yield to conventional tillage, and significantly higher grain yield than zero tillage treatments.”
Claim · model-written summary
After two zero-tillage crops, P. distichum and Scirpus maritimus dominated plots.
- Taxon
- riceOryza sativat0
- Treatment
- zero tillagee0
- Interactor
- P. distichumPaspalum distichume0weed
- Second interactor
- Scirpus maritimus L.
Bolboschoenus maritimuse0weed - Outcome
- plots were dominated by the perennials, P. distichum and Scirpus maritimus L.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“After two crops with zero tillage, the plots were dominated by the perennials, P. distichum and Scirpus maritimus L., but with minimum or conventional tillage, weed control and grain yield were satisfactory.”
Claim · model-written summary
Minimum tillage maintained satisfactory weed control and grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- minimume0
- Outcome
- weed control and grain yield were satisfactorye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“After two crops with zero tillage, the plots were dominated by the perennials, P. distichum and Scirpus maritimus L., but with minimum or conventional tillage, weed control and grain yield were satisfactory.”
Claim · model-written summary
Conventional tillage maintained satisfactory weed control and grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- conventional tillagee0
- Outcome
- weed control and grain yield were satisfactorye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“After two crops with zero tillage, the plots were dominated by the perennials, P. distichum and Scirpus maritimus L., but with minimum or conventional tillage, weed control and grain yield were satisfactory.”
Claim · model-written summary
Nitrogen fertilizer use efficiency was the same under minimum and conventional tillage.
- Taxon
- riceOryza sativat0
- Treatment
- minimume0
- Outcome
- Efficiency of nitrogen fertilizer usagee0
- Direction
- samee0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Efficiency of nitrogen fertilizer usage by the crop was the same with minimum as with conventional tillage but higher than with zero tillage and was increased by placement at 10 cm depth.”
Claim · model-written summary
Nitrogen fertilizer use efficiency was higher under minimum than zero tillage.
- Taxon
- riceOryza sativat0
- Treatment
- minimume0
- Outcome
- Efficiency of nitrogen fertilizer usagee0
- Direction
- highere0
- Comparator
- zero tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Efficiency of nitrogen fertilizer usage by the crop was the same with minimum as with conventional tillage but higher than with zero tillage and was increased by placement at 10 cm depth.”
Claim · model-written summary
Fertilizer placement at 10 cm increased nitrogen use efficiency.
- Taxon
- riceOryza sativat0
- Treatment
- placement at 10 cm depthe0
- Outcome
- Efficiency of nitrogen fertilizer usagee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Efficiency of nitrogen fertilizer usage by the crop was the same with minimum as with conventional tillage but higher than with zero tillage and was increased by placement at 10 cm depth.”
Claim · model-written summary
The authors regard minimum tillage as a dependable alternative for lowland rice production.
- Taxon
- riceOryza sativat0
- Outcome
- minimum tillage systems are a dependable alternative to conventional tillage for lowland rice productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“The studies indicate that minimum tillage systems are a dependable alternative to conventional tillage for lowland rice production.”
The same questions in other papers
tillage · yield · Oryza sativa (rice)Positive and negative results
586 papers in the same direction as this paper · 115 in the opposite direction · 27 reporting no difference from an alternative
- positive
- negative
- negative
725 papers more in this group
See all 729 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.