Intervention effectmodel-written summary

Weeder operation cost ₹ 2 509 compared with ₹ 5 688/ha for manual weeding.

A claim from Effect of mechanical planting and weeding on yield, water-use efficiency and cost of production under modified system of rice intensification · 2012

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Weeder operation cost ₹ 2 509 compared with ₹ 5 688/ha for manual weeding.

Treatment
weeding by weederse0
Outcome
cost of (single) weedinge0
Value
₹ 2 509 against ₹ 5 688/hae0
Comparator
manual weedinge0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingDirectionQualifier

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

“Average cost of (single) weeding by weeders was ₹ 2 509 against ₹ 5 688/ha of manual weeding”

✓ located verbatim in the source · abstract, characters 1069–1161
t0

“rice”

✓ located verbatim in the source · title, characters 121–125

Title

Effect of mechanical planting and weeding on yield, water-use efficiency and cost of production under modified system of rice intensification

P C MOHAPATRA; M DIN; B C PARIDA; et al. The Indian Journal of Agricultural Sciences 2012. doi:10.56093/ijas.v82i3.15979

Other claims from this paper (13)

Record rev-2d80550b1fa34f2cf75d1eaf9887131c108615750e15484b22eedc3bb97f99fb · schema claims-v0.9 · position 12 in the model’s answer

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

802 papers: 725 positive, 77 negative or no effect

724 papers in the same direction as this claim · 57 in the opposite direction · 20 reporting no difference from an alternative

  1. positive
    Four cono weedings (10, 20, 30 and 40 DAT) gave better rice yields than two cono weedings.

    Mechanized weed management to enhance productivity in System of Rice Intensification (SRI) · 2016 · compared with two times cono weeding

    Same directionCites this paper

  2. positive
    Pretilachlor followed by hand weeding produced more panicle weight, panicle length and grains per panicle.

    Bio-efficacy of pre and post-emergence herbicides for control of complex weed flora in transplanted rice (Oryza sativa L.) · 2020

    Same directionCites this paper

  3. no effect
    Weeding every 14 days did not increase rice grain yield.

    Weeds in slash‐and‐burn rice fields in northern Laos · 1997

    Opposite direction

  4. negative
    The non-allelopathic variety showed a grain yield reduction of up to 45-60% even with the low-dose herbicide application.

    Effect of allelopathic rice varieties combined with cultural management options on paddy field weeds · 2008

    Opposite direction

  5. negative
    Herbicide carryover reduced IRGA 417 grain yield by up to 55% when drilled 371 days after application.

    Carryover of Imazethapyr and Imazapic to Nontolerant Rice · 2010

    Opposite direction

  6. negative
    Late postemergence application at 7.9 and 4 g/ha reduced rice yield by 39 and 16%.

    Corn and Rice Response to Simulated Drift of Imazethapyr Plus Imazapyr · 2006

    Opposite direction

  7. negative
    Each day of delay in weeding created an average yield loss of 5.3 g m-2.

    Yields and Yield Gaps in Lowland Rice Systems and Options to Improve Smallholder Production · 2022

    Opposite direction

  8. negative
    PRE clomazone caused lower grain yield than DPRE.

    Response of Rice and Barnyardgrass (Echinochloa crus-galli) to Rates and Timings of Clomazone · 2005 · compared with DPRE timings

    Opposite direction

793 papers more in this group

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.