Abstract
Dry seeding of rice offers potential to be opted as a resource conservation technology but its sustainability is endangered by heavy weed infestation. Experiments were conducted during summer season of 2009 to look for effective and economically viable weed control method(s) in dry seeded rice. Four mulching materials of natural origin as sorghum, sunflower and wheat residues each soil incorporated at 8 t ha -1 and black polyethylene sheet strips as artificial origins were used. A weedy check and manual weeding were included for comparison. Label doses of post emergence herbicides, bis-pyribac sodium and penoxsulam, at 30 and 15 g a.i. ha -1 were also used. Manual weeding accounted for maximum (99%) inhibition in weed density and dry weight. Bispyribac sodium suppressed weed count and dry weight by ≈ 80%. Among non-chemical weed management strategies, sorghum residues scored over 50% reduction in weed density and dry weight. Plastic sheet strips were least effective against weeds. Manual weeding scored highest paddy yield of 4.17 t ha -1 . Bispyribac sodium with 3.51 t ha -1 paddy yield appeared superior to penoxsulam. Sorghum, sunflower and wheat residues resulted in
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Claims 6
Claim · model-written summary
Manual weeding inhibited weed density and dry weight by 99%.
- Taxon
- rice
Oryza sativat0 - Treatment
- Manual weedinge0
- Interactor
- weede0weed
- Outcome
- weed density and dry weighte0
- Direction
- inhibitione0
- Value
- 99%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Manual weeding accounted for maximum (99%) inhibition in weed density and dry weight”
Claim · model-written summary
Bispyribac sodium suppressed weed count and dry weight by approximately 80%.
- Taxon
- riceOryza sativat0
- Treatment
- Bispyribac sodiume0
- Interactor
- weede0weed
- Outcome
- weed count and dry weighte0
- Direction
- suppressede0
- Value
- ≈ 80%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Bispyribac sodium suppressed weed count and dry weight by ≈ 80%”
Claim · model-written summary
Sorghum residues reduced weed density and dry weight by over 50%.
- Taxon
- riceOryza sativat0
- Treatment
- sorghum residuese0
- Interactor
- weede0weed
- Outcome
- weed density and dry weighte0
- Direction
- reductione0
- Value
- over 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“sorghum residues scored over 50% reduction in weed density and dry weight”
Claim · model-written summary
Plastic sheet strips were the least effective against weeds.
- Taxon
- riceOryza sativat0
- Treatment
- Plastic sheet stripse0
- Interactor
- weedse0weed
- Outcome
- least effectivee0
- Direction
- least effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Plastic sheet strips were least effective against weeds”
Claim · model-written summary
Manual weeding produced the highest paddy yield, 4.17 t ha -1.
- Taxon
- riceOryza sativat0
- Treatment
- Manual weedinge0
- Outcome
- paddy yielde0
- Direction
- higheste0
- Value
- 4.17 t ha -1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Manual weeding scored highest paddy yield of 4.17 t ha -1”
Claim · model-written summary
Bispyribac sodium yielded 3.51 t ha -1 paddy and was superior to penoxsulam.
- Taxon
- riceOryza sativat0
- Treatment
- Bispyribac sodiume0
- Outcome
- paddy yielde0
- Direction
- superiore0
- Value
- 3.51 t ha -1e0
- Comparator
- penoxsulame0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Bispyribac sodium with 3.51 t ha -1 paddy yield appeared superior to penoxsulam”
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See all 802 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.