Intervention effectmodel-written summary

The treatment minimized weed depletion of NPK.

A claim from Nutrient depletion by weeds, yield and economics of drum seeded rice influenced by weed management · 2011

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The treatment minimized weed depletion of NPK.

Treatment
drum seeding + green manure method of seedling establishment and pre-emergence application of pretilachlor + safener at the rate of 0.45 kg/ha on 5 days after sowing (DAS) fb hand weeding (HW) at 45 DASe0
Outcome
depletion of NPK nutrient by weedse0
Direction
loweste0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

“drum seeding + green manure method of seedling establishment and pre-emergence application of pretilachlor + safener at the rate of 0.45 kg/ha on 5 days after sowing (DAS) fb hand weeding (HW) at 45 DAS registered lowest weed density, weed biomass, highest weed control efficiency (WCE), zero per cent weed index (WI), lowest depletion of NPK nutrient by weeds and highest grain yield of crop and B: C ratio.”

✓ located verbatim in the source · abstract, characters 20–428
t0

“rice”

✓ located verbatim in the source · title, characters 64–68

Title

Nutrient depletion by weeds, yield and economics of drum seeded rice influenced by weed management

SP Sangeetha; A. Balakrishnan; R. Sathya Priya; et al. Indian Journal of Weed Science 2011

Other claims from this paper (6)

Record rev-bb2f4a69a672e675f110f8fda243436080560450052ab2e4c13d80b12fa044f5 · schema claims-v0.9 · position 5 in the model’s answer

Pretilachlor · weed · Oryza sativa (rice)Results differ

150 papers: 147 positive, 3 negative or no effect

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

  1. positive
    Pretilachlor 1.0 kg/ha with hand weeding reduced weed population and weed dry weight significantly compared with the remaining treatments.

    Weed Control in Direct Seeded Puddled Rice · 1998 · compared with remaining treatments

    Same directionCited by this paper

  2. positive
    Weed-free management with Pretilachlor or Pendimethalin followed by hand weeding reduced weed density and increased biomass.

    E Efficacy and Economics of Herbicidal Weed Management in Monsoon Rice of Bangladesh · 2017

    Same directionCites this paper

  3. negative
    Pretilachlor did not effectively control weeds in dry seeding.

    Integrated Management of Weeds in Direct-Seeded Rice in Cambodia · 2020

    Opposite direction

  4. negative
    Bensulfuron-methyl plus pretilachlor at 60+600 g ha lowered weed number and dry weight at 45 DAT.

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

    Opposite direction

  5. no effect
    Pretilachlor at 500 g/ha alone gave results comparable to two rounds of hand weeding.

    Optimization of Pretilachlor Dose for Weed Management in Transplanted Rice · 2002 · compared with two rounds of hand weeding

    No difference from an alternative

  6. positive
    Pretilachlor ranked above butachlor and pendimethalin for weed suppression and rice yield.

    Weed management improves yield and quality of direct seeded rice · 2011 · compared with butachlor>pendimethalin

    Same direction

  7. positive
    Pretilachlor + fenclorim 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

  8. positive
    The pretilachlor, bispyribac and hand weeding sequence effectively controlled weeds in direct seeded rice.

    Transforming labor requirement, crop yield, and profitability with precision dry-direct seeding of rice and integrated weed management in Eastern India · 2020

    Same direction

141 papers more in this group

See all 150 papers →

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

68 papers: 53 positive, 15 negative or no effect

52 papers in the same direction as this claim · 15 in the opposite direction

  1. no effect
    Added fertilizer had no effect on rice growth in mixtures.

    Root growth and the relative importance of root and shoot competition in interactions between rice (Oryza sativa) and Echinochloa crus‐galli · 1992

    Opposite direction

  2. no effect
    Plant density, weeds, pests, disease, head rice yield and rice quality did not differ by nitrogen source.

    Response of paddy rice to fertilisation with pig slurry in northeast Spain: Strategies to optimise nitrogen use efficiency · 2017 · compared with mineral

    Opposite direction

  3. no effect
    Fertilizer placement did not influence weed biomass in herbicide-treated plots.

    Fertilizer Placement Affects Weed Growth and Grain Yield in Dry-Seeded Rice (Oryza sativa L.) Systems · 2013

    Opposite direction

  4. no effect
    Nutrient management practices did not significantly vary weed density or dry matter accumulation.

    Effect of Weed Control and Nutrient Management Practices in Rice · 2001

    Opposite direction

  5. no effect
    Nitrogen level had no significant effect on weed density, biomass or control efficacy.

    Growth and Yield Response of Upland Rice (Oryza sativa L.) to Different Nitrogen Fertilization and Weeding Levels · 2021

    Opposite direction

  6. negative
    N3 produced the maximum weed population.

    Effect of Nutrient and Weed Management Practices on Weed Dynamics and Productivity of Aromatic Rice in Semi-arid Region of Bihar · 2021

    Opposite direction

  7. negative
    Full recommended prilled urea produced maximum weed density and dry weight; USG produced minimum values.

    Integrated Nitrogen Management on Weed Growth and Yield Performance of Transplant Aman Rice · 2023 · compared with application of USG

    Opposite direction

  8. negative
    Weed biomass was generally greater with FYM and full N than with half N.

    EFFECT OF N-FERTILIZER AND FARMYARD MANURE ON WEED COMPETITION IN RICE · 2014 · compared with half N dose

    Opposite direction

59 papers more in this group

See all 68 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
    Pretilachlor 1.0 kg/ha with hand weeding reduced weed population and weed dry weight significantly compared with the remaining treatments.

    Weed Control in Direct Seeded Puddled Rice · 1998 · compared with remaining treatments

    Same directionCited by this paper

  2. positive
    Season-long weed-free management achieved 100% weed control efficiency.

    E Efficacy and Economics of Herbicidal Weed Management in Monsoon Rice of Bangladesh · 2017

    Same directionCites this paper

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. no effect
    Blackgram herbicides did not influence weed flora and growth of subsequent rice.

    Effect of Herbicides on Weed Growth and Crop Performance in Rice-blackgram Cropping System · 2000

    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.