Intervention effectmodel-written summary

Pendimethalin followed by bispyribac-sodium plus metsulfuron-methyl and chlorimuron-ethyl reduced weed density in direct-seeded rice

A claim from Effect of herbicides on weeds and direct-seeded rice growth and yield · 2025

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pendimethalin followed by bispyribac-sodium plus metsulfuron-methyl and chlorimuron-ethyl reduced weed density in direct-seeded rice

Taxon
direct-seeded ricet0
Treatment
Pendimethalin 1000 g/ha PE fb tank mixed bispyribac-sodium 25 g/hae0
Outcome
weed densitye0
Direction
reducede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Verbatim

t0

“direct-seeded rice growth and yield”

✓ located verbatim in the source · title, characters 34–69
e0

“Pendimethalin 1000 g/ha PE fb tank mixed bispyribac-sodium 25 g/ha + metsulfuron- methyl + chlorimuron-ethyl ready mix (RM) 4 g/ha PoE at 25 to 30 days after seeding (DAS) reduced weed density with higher rice plant height, leaf area and maximum rice grain yield”

✓ located verbatim in the source · abstract, characters 403–665

Title

Effect of herbicides on weeds and direct-seeded rice growth and yield

Nagendra Kumar Verma; Shrikant Chitale; Nitish Tiwari Indian Journal of Weed Science 2025. doi:10.5958/0974-8164.2025.00049.1

Other claims from this paper (5)

Record rev-ff93e758cfcd0a391ab74450965f007a6f73dfc3b0e7c1968fb4121dfd53c596 · schema claims-v0.9 · position 1 in the model’s answer

pendimethalin · weed · Oryza sativa (rice)Positive and negative results

128 papers: 125 positive, 3 negative or no effect

124 papers in the same direction as this claim · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    Sequential pendimethalin, bispyribac-sodium and hand weeding at 45 DAS provided up to 85% weed control over the weedy check.

    Integrated weed management in direct-seeded rice: dynamics and economics · 2019 · compared with weedy check

    Same directionCited by this paper

  2. negative
    Pendimethalin and acetachlor plus bensulfuraonmethyl were ineffective for broadleaf weed control.

    Performance of Different Herbicides in Dry-Seeded Rice in Bangladesh · 2014

    Opposite direction

  3. negative
    Pendimethalin alone (T2) gave the maximum weed index (36.39%).

    Herbicide combinations for weed control in direct-seeded rice · 2020

    Opposite direction

  4. no effect
    PR-115 in paired rows with pendimethalin had weed biomass of 10.7 g m −2, similar to sequential herbicides in uniform rows.

    Integrated Weed Management Using Planting Pattern, Cultivar, and Herbicide in Dry-Seeded Rice in Northwest India · 2014 · compared with sequential application of pendimethalin and bispyribac-sodium coupled with uniform rows

    No difference from an alternative

  5. positive
    Single pendimethalin PRE application reduced total weed biomass by 75% compared with the nontreated control.

    Herbicide Options for Weed Control in Dry-Seeded Aromatic Rice in India · 2013 · compared with nontreated control

    Same direction

  6. positive
    Rice–Sesbania coculture followed by herbicides reduced total weed population by 65.1% at 30 DAS.

    An integrated approach to weed management practices in direct-seeded rice under zero-tilled rice–wheat cropping system · 2016

    Same direction

  7. positive
    Pendimethalin followed by Bentazon/MCPA gave effective weed flora control.

    Response of weed flora to different herbicides in aerobic rice system · 2012

    Same direction

  8. positive
    Increasing pendimethalin dose decreased weed density and dry weight at 60 days.

    Effect of Herbicides Alone and in Combination on Direct Seeded Rice · 2005

    Same direction

119 papers more in this group

See all 128 papers →

bispyribac-sodium · weed · Oryza sativa (rice)Positive and negative results

153 papers: 149 positive, 4 negative or no effect

148 papers in the same direction as this claim · 1 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
    Bispyribac-sodium 20 and 25 g/ha applied at 1–3 or 4–6 leaf stage of weeds gave the lowest weed density and biomass in direct-seeded rice.

    Management of weeds in direct-seeded rice by bispyribac-sodium · 2014

    Same directionCited by this paper

  2. positive
    Sequential pendimethalin, bispyribac-sodium and hand weeding at 45 DAS provided up to 85% weed control over the weedy check.

    Integrated weed management in direct-seeded rice: dynamics and economics · 2019 · compared with weedy check

    Same directionCited by this paper

  3. positive
    Sequential bensulfuron-methyl plus pretilachlor followed by bispyribac-sodium significantly lowered total weed population to 39.4 and 43.1/m2 in 2014 and 2015.

    Sequential application of pre-and post-emergence herbicides for control of complex weed flora in dry direct-seeded rice under Cauvery command area of Karnataka · 2019

    Same directionCited by this paper

  4. negative
    Bispyribac sodium significantly decreased control efficacy on annual broadleaf weeds.

    Control effect of 40% Bispyribac-sodium SC on weeds in direct seeding rice field · 2014

    Opposite direction

  5. no effect
    Total weed population and dry weight under bispyribac-sodium at 25 g/ha were at par with the higher doses.

    Evaluation of bispyribac-sodium in transplanted rice · 2013 · compared with higher doses of bispyribac-sodium at 35 and 50 g/ha

    No difference from an alternative

  6. no effect
    IET-21214 with bispyribac-sodium had weed control similar to sequential herbicides.

    Integrated Weed Management Using Planting Pattern, Cultivar, and Herbicide in Dry-Seeded Rice in Northwest India · 2014 · compared with sequential application of pendimethalin and bispyribac-sodium

    No difference from an alternative

  7. no effect
    Bispyribac sodium with hand weeding at 40 DAT gave weed density at par with two hand weeding.

    Effect of weed management practices on weed density and yield of transplanted rice · 2019 · compared with two hand weeding

    No difference from an alternative

  8. positive
    Single bispyribac-sodium POST application reduced total weed biomass by 73% compared with the nontreated control.

    Herbicide Options for Weed Control in Dry-Seeded Aromatic Rice in India · 2013 · compared with nontreated control

    Same direction

144 papers more in this group

See all 153 papers →

herbicide · weed · Oryza sativa (rice)Positive and negative results

603 papers: 579 positive, 24 negative or no effect

578 papers in the same direction as this claim · 17 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
    The same herbicide combination gave a lower weed index (2.96) in direct-seeded rice.

    Management of weeds in direct-seeded rice · 2015

    Same directionCited by this paper

  2. positive
    Sequential pendimethalin, bispyribac-sodium and hand weeding at 45 DAS provided up to 85% weed control over the weedy check.

    Integrated weed management in direct-seeded rice: dynamics and economics · 2019 · compared with weedy check

    Same directionCited by this paper

  3. positive
    Sequential bensulfuron-methyl plus pretilachlor followed by bispyribac-sodium significantly lowered total weed population to 39.4 and 43.1/m2 in 2014 and 2015.

    Sequential application of pre-and post-emergence herbicides for control of complex weed flora in dry direct-seeded rice under Cauvery command area of Karnataka · 2019

    Same directionCited by this paper

  4. negative
    Rice flatsedge control by herbicides was lower with residue than without.

    Interaction of Rice Residue and PRE Herbicides on Emergence and Biomass of Four Weed Species · 2012 · compared with absence of residue

    Opposite direction

  5. no effect
    Imazosulfuron applied alone as preemergence did not control grassy weeds, broad leaved weeds or sedges in rice

    Effect of tank-mixed herbicides on weeds and transplanted rice (Oryza sativa L.) · 2012

    Opposite direction

  6. negative
    Oxyfluorfen failed to control other weeds beyond 15 days after sowing.

    Stale Seedbed Technique for the Management of Sacciolepis interrupta in Semi-dry Rice · 2000

    Opposite direction

  7. negative
    Weed nutrient uptake was highest with hand weeding at 20 and 40 days.

    Effect of irrigation and weed management practices on Nutrient uptake and Economics of production of Aerobic rice · 2013

    Opposite direction

  8. negative
    Unweeded plots (UW) had the highest weed density among weed management modes.

    Effects of Water and Weed Management on the Weed Density, Grain Yield, and Water Productivity of Wet-seeded Rice · 2020 · compared with UW

    Opposite direction

594 papers more in this group

See all 603 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.