Intervention effectmodel-written summary

Atrazine followed by one hand weeding at 30 DAS gave maize kernel yield comparable to twice hand weeding.

A claim from Effect of Weed Management Practices in Rabi Maize and their Residual Effect on Succeeding Greengram · 2019

Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Atrazine followed by one hand weeding at 30 DAS gave maize kernel yield comparable to twice hand weeding.

Taxon
maizeZea mayse1
Treatment
atrazine @ 1.0 kg a.i ha-1 as pre emergence fb one HW at 30 DAS (T1)e0
Outcome
kernel yielde1
Direction
comparablee1
Comparator
hand weeding twice at 15 and 30 DASe1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“atrazine @ 1.0 kg a.i ha-1 as pre emergence fb one HW at 30 DAS (T1)”

✓ located verbatim in the source · abstract, characters 1076–1144
e1

“The higher kernel yield of maize was recorded with hand weeding twice at 15 and 30 DAS (T9), which was however comparable”

✓ located verbatim in the source · abstract, characters 735–856

Title

Effect of Weed Management Practices in Rabi Maize and their Residual Effect on Succeeding Greengram

B. Sandhya Rani; V. Chandrika; G. Prabhakara Reddy; et al. International Journal of Current Microbiology and Applied Sciences 2019. doi:10.20546/ijcmas.2019.812.107

Other claims from this paper (3)

Record rev-936b2a950cb7dfbbe9b106af114a6ffdb0956f1f320df4e25c4877e463267b2c · schema claims-v0.9 · position 4 in the model’s answer

atrazine · yield · Zea mays (maize)Results differ

240 papers: 205 positive, 35 negative or no effect

204 papers in the same direction as this claim · 29 in the opposite direction · 6 reporting no difference from an alternative

  1. positive
    Atrazine followed by tembotrione had the highest benefit-cost ratio.

    Effect of Sequential Application of Herbicides on Weed Density, Weed Dry Weight and Yield of Irrigated Maize · 2020

    Same directionCites this paper

  2. negative
    Corn grain yield fell 39% in year five where atrazine had been discontinued.

    Weed Seed Decline in Irrigated Soil after Six Years of Continuous Corn(Zea mays)and Herbicides · 1984

    Opposite direction

  3. no effect
    Sweet corn yields at Blackville and Tifton were similar between the half and full rates of atrazine plus S-metolachlor after wild radish or rye cover crops.

    Use of Wild Radish (Raphanus raphanistrum) and Rye Cover Crops for Weed Suppression in Sweet Corn · 2008

    Opposite direction

  4. negative
    Reducing atrazine and metolachlor to one-fourth the rate in the absence of cover crop reduced corn yield in two of four years compared with the standard treatment.

    Reduced-Herbicide Weed Management Systems for No-Tillage Corn (Zea mays) in a Hairy Vetch (Vicia villosa) Cover Crop · 1993 · compared with the standard treatment

    Opposite direction

  5. no effect
    Hairy vetch cover yields did not differ with or without atrazine and metolachlor.

    Cover Crop Management and Weed Suppression in No-tillage Sweet Corn Production · 2004 · compared with without atrazine and metolachlor

    Opposite direction

  6. no effect
    Rimsulfuron applied with atrazine or dicamba, in tank mixture or sequentially, gave corn yield similar to rimsulfuron applied alone.

    Dicamba and Atrazine Antagonism on Sulfonylurea Herbicides Used for Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)1 · 2001 · compared with that applied alone

    Opposite direction

  7. no effect
    Handweeding and atrazine gave similar grain yields with tine cultivation when weeds were controlled within 14 days of emergence.

    Use of Tine-tillage, with Atrazine Weed Control, to Permit Earlier Planting of Maize by Smallholder Farmers in Zimbabwe · 1992 · compared with Handweeding

    Opposite direction

  8. no effect
    Atrazine, cyanazine, alachor, linuron and their combinations had no significant effect on corn yields.

    Planting Corn in Sod and Small Grain Residues with Minimum Tillage1 · 1976

    Opposite direction

231 papers more in this group

See all 240 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.