Abstract
A field experiment was conducted at Tirupati during winter (rabi) season of 2003 and 2004 to evaluate the ef- ficiency of low-dose herbicides under different puddling and water-management practices on yield attributes and yield of transplanted rice (Oryza sativa L.). Intensive puddling with continuous submergence (IPCS) recorded the lowest weed density and dry weight, highest stature of yield attributes (panicles/m2, length of the panicle and filled grainslpanicle), higher grain and straw yields and higher economic returns, but it was comparable with in- tensive puddling with irrigation a day after disappearance of ponded water (IPDDPW) treatment. The increase in grain yield was 40.1, 31.2 and 13.6% in IPCS, IPDDPW and normal puddling with continuous submergence (NPCS) respectively over normal puddling with irrigation a day after disappearance of ponded water (NPDDPW). Significantly lowest water requirement and highest water-use efficiency (WUE) was registered with IPDDPW fol- lowed by IPCS. Among the weed-management practices, oxadiargyl 75 glha + hand-weeding (HW) at 40 days after transplanting (DAT) recorded the highest values of all the yield attributes, yield and econpmic returns with lesser weed density and dry weight over the unweeded check, which was on a par with HW twice (20 and 40 DAT). On an average, the increase in grain yield was 39.5 and 34.2% in oxadiargyl 75 glha + HW (40 DAT) and HW twice (20 and 40 DAT) respectively over the unweeded check. The highest WUE was registered with oxadiargyl 75 g/ha + HW (40 DAT), followed by HW twice (20 and 40 DAT); however the difference in water re- quirement of rice due to different weed-management practices was not statistically evident.
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Claims 13
Claim · model-written summary
Intensive puddling with continuous submergence gave the lowest weed density and dry weight.
- Taxon
- rice
Oryza sativat0 - Treatment
- Intensive puddling with continuous submergence (IPCS)e0
- Interactor
- weede0
- Outcome
- weed density and dry weighte0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intensive puddling with continuous submergence (IPCS) recorded the lowest weed density and dry weight”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
IPCS gave the highest panicles, panicle length and filled grains per panicle.
- Taxon
- riceOryza sativat0
- Treatment
- IPCSe1
- Outcome
- yield attributes (panicles/m2, length of the panicle and filled grainslpanicle)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest stature of yield attributes (panicles/m2, length of the panicle and filled grainslpanicle)”
e1“(IPCS)”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
IPCS produced higher grain and straw yields and economic returns.
- Taxon
- riceOryza sativat0
- Treatment
- IPCSe1
- Outcome
- grain and straw yields and higher economic returnse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher grain and straw yields and higher economic returns”
e1“(IPCS)”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Grain yield under IPCS rose 40.1% over NPDDPW.
- Taxon
- riceOryza sativat0
- Treatment
- IPCSe0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 40.1e0
- Comparator
- normal puddling with irrigation a day after disappearance of ponded water (NPDDPW)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in grain yield was 40.1, 31.2 and 13.6% in IPCS, IPDDPW and normal puddling with continuous submergence (NPCS) respectively over normal puddling with irrigation a day after disappearance of ponded water (NPDDPW)”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Grain yield under IPDDPW rose 31.2% over NPDDPW.
- Taxon
- riceOryza sativat0
- Treatment
- IPDDPWe0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 31.2e0
- Comparator
- normal puddling with irrigation a day after disappearance of ponded water (NPDDPW)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in grain yield was 40.1, 31.2 and 13.6% in IPCS, IPDDPW and normal puddling with continuous submergence (NPCS) respectively over normal puddling with irrigation a day after disappearance of ponded water (NPDDPW)”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Grain yield under NPCS rose 13.6% over NPDDPW.
- Taxon
- riceOryza sativat0
- Treatment
- normal puddling with continuous submergence (NPCS)e0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 13.6%e0
- Comparator
- normal puddling with irrigation a day after disappearance of ponded water (NPDDPW)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in grain yield was 40.1, 31.2 and 13.6% in IPCS, IPDDPW and normal puddling with continuous submergence (NPCS) respectively over normal puddling with irrigation a day after disappearance of ponded water (NPDDPW)”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
IPDDPW had the lowest water requirement and highest water-use efficiency, followed by IPCS.
- Taxon
- riceOryza sativat0
- Treatment
- IPDDPWe0
- Outcome
- water requirement and highest water-use efficiency (WUE)e0
- Direction
- loweste0
- Comparator
- IPCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly lowest water requirement and highest water-use efficiency (WUE) was registered with IPDDPW fol- lowed by IPCS”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Oxadiargyl plus hand-weeding produced the highest yield attributes, yield and economic returns versus the unweeded check.
- Taxon
- riceOryza sativat0
- Treatment
- oxadiargyl 75 glha + hand-weeding (HW) at 40 days after transplanting (DAT)e0
- Outcome
- yield attributes, yield and econpmic returnse0
- Direction
- higheste0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oxadiargyl 75 glha + hand-weeding (HW) at 40 days after transplanting (DAT) recorded the highest values of all the yield attributes, yield and econpmic returns with lesser weed density and dry weight over the unweeded check”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Oxadiargyl plus hand-weeding reduced weed density and dry weight versus the unweeded check.
- Taxon
- riceOryza sativat0
- Treatment
- oxadiargyl 75 glha + hand-weeding (HW) at 40 days after transplanting (DAT)e0
- Interactor
- weede0
- Outcome
- weed density and dry weighte0
- Direction
- lessere0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oxadiargyl 75 glha + hand-weeding (HW) at 40 days after transplanting (DAT) recorded the highest values of all the yield attributes, yield and econpmic returns with lesser weed density and dry weight over the unweeded check”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Oxadiargyl plus hand-weeding raised grain yield by 39.5% over the unweeded check.
- Taxon
- riceOryza sativat0
- Treatment
- oxadiargyl 75 glha + HW (40 DAT)e0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 39.5e0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in grain yield was 39.5 and 34.2% in oxadiargyl 75 glha + HW (40 DAT) and HW twice (20 and 40 DAT) respectively over the unweeded check”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Hand-weeding twice raised grain yield by 34.2% over the unweeded check.
- Taxon
- riceOryza sativat0
- Treatment
- HW twice (20 and 40 DAT)e0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 34.2%e0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in grain yield was 39.5 and 34.2% in oxadiargyl 75 glha + HW (40 DAT) and HW twice (20 and 40 DAT) respectively over the unweeded check”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Oxadiargyl plus hand-weeding gave the highest WUE, followed by hand-weeding twice.
- Taxon
- riceOryza sativat0
- Treatment
- oxadiargyl 75 g/ha + HW (40 DAT)e0
- Outcome
- WUEe0
- Direction
- higheste0
- Comparator
- HW twice (20 and 40 DAT)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest WUE was registered with oxadiargyl 75 g/ha + HW (40 DAT), followed by HW twice (20 and 40 DAT)”
t0“transplanted rice (Oryza sativa)”
Claim · model-written summary
Rice water requirement did not differ significantly among weed-management practices.
- Taxon
- riceOryza sativae0
- Treatment
- different weed-management practicese0
- Outcome
- water re- quiremente0
- Direction
- not statistically evidente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the difference in water re- quirement of rice due to different weed-management practices was not statistically evident”
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See all 729 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.