Intervention effectmodel-written summary

The herbicide combination reduced weed population by 79.23% versus weedy check.

A claim from Evaluation of different herbicides against weeds and uptake pattern of potassium by rice (Oryza sativa L) under hill zone of West Bengal · 2017

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The herbicide combination reduced weed population by 79.23% versus weedy check.

Treatment
metsulfuron methyl (MSM) (7.5 g/ha) + chlorimuron ethyl (CME) (7.5 g/ha) + 2, 4-D (500 g/ha)e0
Interactor
weede0weed
Outcome
weed populatione0
Direction
reducede0
Value
79.23%e0
Comparator
weedy checke0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“application of metsulfuron methyl (MSM) (7.5 g/ha) + chlorimuron ethyl (CME) (7.5 g/ha) + 2, 4-D (500 g/ha) significantly reduced weed population (79.23%) and their dry weight (80.31%) over weedy check”

✓ located verbatim in the source · abstract, characters 318–519
t0

“rice (Oryza sativa L)”

✓ located verbatim in the source · title, characters 84–105

Title

Evaluation of different herbicides against weeds and uptake pattern of potassium by rice (Oryza sativa L) under hill zone of West Bengal

Dhiman Mukherjee AgricINTERNATIONAL 2017. doi:10.5958/2454-8634.2017.00018.3

Other claims from this paper (7)

Record rev-e6b9e9c3eb944737ce869bbb32c1b1829aa75e3bc190861ffe37158e43d392f4 · schema claims-v0.9 · position 1 in the model’s answer

2,4-D · weed · Oryza sativa (rice)Results differ

49 papers: 47 positive, 2 negative or no effect

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

  1. no effect
    2, 4-D did not reduce weed density and dry weight considerably in rice.

    Effect of Weed Control Methods on Growth and Yield of Unpuddled Rice1 · 1984

    Opposite direction

  2. no effect
    Anilofos+2,4-D readymix was equally good as hand weeding twice for reduction in weed population and dry weight in both years.

    Efficacy of Herbicides Applied Alone and in Combinations against Weeds in Transplanted Rice · 1999 · compared with Hand weeding twice

    No difference from an alternative

  3. positive
    2,4-D in water seeding effectively controlled weeds in rice

    INCREASING WATER PRODUCTIVITY AND WEED SUPPRESSION OF WET SEEDED RICE: EFFECT OF WATER MANAGEMENT AND RICE GENOTYPES · 2000

    Same direction

  4. 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

  5. positive
    Pendimethalin followed by 2, 4-D gave the highest grain yield and weed control efficiency.

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

    Same direction

  6. positive
    Pretilachlor followed by 2,4-D minimized weed density and dry weight.

    Influence of crop establishment methods and weed management practices on yield and economics of direct-seeded rice (Oryza sativa) · 2001

    Same direction

  7. positive
    A pendimethalin programme followed by post-emergence herbicides gave effective weed control and higher rice yield.

    Control of Complex Weed Flora of Dry-seeded Rice (Oryza sativa L.) with Pre- and Post-emergence Herbicides · 2008

    Same direction

  8. positive
    The 2008 integrated herbicide program significantly reduced weed dry matter relative to pendimethalin alone.

    Bioefficacy of pre- and post-emergence herbicides in direct-seeded rice in Central Punjab · 2012 · compared with alone application of pendimethalin 0.75 kg/ha

    Same direction

40 papers more in this group

See all 49 papers →

methyl · weed · Oryza sativa (rice)Results agree

29 papers: 29 positive, 0 negative or no effect

28 papers in the same direction as this claim

  1. positive
    Chlorine- or methyl-substituted compounds controlled resistant weeds.

    Evaluation of novel sulfonylurea derivatives with a fused heterocyclic moiety as paddy herbicides that control sulfonylurea‐resistant weeds · 2011

    Same direction

  2. positive
    Metsulfuron methyl plus chlorimuron-ethyl and azimsulfuron effectively controlled broad-spectrum weeds.

    Effect of Bensulfuron-Methyl+Pretilachlor and Other Herbicides on Mixed Weed Flora of Wet Season Transplanted Rice · 2015

    Same direction

  3. positive
    Pre-emergence metsulfuron methyl + chlorimuron ethyl gave better weed control in rice

    Integrated weed management in rainfed upland rice (Oryza sativa) · 2001

    Same direction

  4. positive
    Almix plus surfactant achieved 88.6% weed control efficiency.

    Efficacy of sulfonylurea herbicides for broad-spectrum weed control in wet direct-sown summer rice · 2009

    Same direction

  5. positive
    Weed suppression by the two herbicides was statistically comparable to weed-free and hand-weeding treatments.

    Bio-efficacy of sulfonylurea herbicides on mixed weed flora in transplanted rice. · 2012 · compared with weed-free condition

    Same direction

  6. positive
    Higher bensulfuron-methyl doses nearly completely controlled non-grassy weeds.

    Effect of Bensulfuron-methyl (Londax 60 DF) on Sedges and Non-grassy Weeds in Transplanted Rice · 2005

    Same direction

  7. positive
    Sequential herbicide application significantly lowered weed density.

    Performance of sequential herbicides to control weeds in direct seeded rice · 2017

    Same direction

  8. positive
    Metsulfuron methyl plus chlorimuron-ethyl and azimsulfuron controlled a broad spectrum of weeds.

    Efficacy of herbicides on weed management in wet season transplanted rice · 2015

    Same direction

20 papers more in this group

See all 29 papers →

chlorimuron-ethyl · weed · Oryza sativa (rice)Results agree

30 papers: 30 positive, 0 negative or no effect

29 papers in the same direction as this claim

  1. positive
    Brown manuring followed by metsulfuron-methyl plus chlorimuron-ethyl reduced weed dry weight by 80.3%.

    Weed management in dry direct-seeded rice: Assessing the impacts on weeds and crop · 2020

    Same direction

  2. positive
    Metsulfuron methyl plus chlorimuron-ethyl and azimsulfuron effectively controlled broad-spectrum weeds.

    Effect of Bensulfuron-Methyl+Pretilachlor and Other Herbicides on Mixed Weed Flora of Wet Season Transplanted Rice · 2015

    Same direction

  3. positive
    Pre-emergence metsulfuron methyl + chlorimuron ethyl gave better weed control in rice

    Integrated weed management in rainfed upland rice (Oryza sativa) · 2001

    Same direction

  4. positive
    Butachlor plus almix gave higher weed control efficiency in transplanted rice.

    Weed control in transplanted and wet-seeded rainy season rice (Oryza sativa) · 2011 · compared with season long weed-free condition

    Same direction

  5. 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 direction

  6. positive
    Chlorimuron ethyl was more effective against broad-leaved weeds.

    Effect of herbicide and nitrogen on yield of scented rice (Oryza sativa) under different rice cultures · 2001

    Same direction

  7. positive
    Almix plus surfactant achieved 88.6% weed control efficiency.

    Efficacy of sulfonylurea herbicides for broad-spectrum weed control in wet direct-sown summer rice · 2009

    Same direction

  8. positive
    Chlorimuron-ethyl controlled broad-leaved weeds and sedges effectively.

    Efficacy of chlorimuron-ethyl against weeds in transplanted rice · 2013

    Same direction

21 papers more in this group

See all 30 papers →

3 of 4 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.