Intervention effectmodel-written summary

Atrazine 1.0 kg/ha pre-emergence plus 1.1 kg/ha post-emergence gave the maximum net return per rupee invested, 1.88 and 2.31.

A claim from Weed management in no-tilled dribbling maize for small land holder · 2016

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Atrazine 1.0 kg/ha pre-emergence plus 1.1 kg/ha post-emergence gave the maximum net return per rupee invested, 1.88 and 2.31.

Taxon
maizeZea mayst0
Treatment
atrazine 1.0 kg/ha as pre-emergence + atrazine 1.1 kg/ha as post-emergencee3
Outcome
net return per rupee investede3
Direction
maximume3
Value
1.88 and 2.31e3

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

t0

“no-tilled dribbling maize”

✓ located verbatim in the source · title, characters 19–44
e3

“The atrazine 1.0 kg/ha as pre-emergence + atrazine 1.1 kg/ha as post-emergence gave maximum net return of (‘ 93,650/ha and ’ 1,21,050/ha) and maximum net return per rupee invested (1.88 and 2.31)”

✓ located verbatim in the source · abstract, characters 1335–1530

Title

Weed management in no-tilled dribbling maize for small land holder

Pijush Kanti Mukherjee; Anwesh Rai Indian Journal of Weed Science 2016. doi:10.5958/0974-8164.2016.00071.x

Other claims from this paper (5)

Record rev-129b39fc92e41b6e3d7ede7db819ff20b04e0e1156b6455945dc6a4959c9a59e · schema claims-v0.9 · position 5 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. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. negative
    Yield fell at all POST timings with atrazine alone or no PRE herbicide.

    Effect of Residual Herbicide and Postemergence Application Timing on Weed Control and Yield in Glyphosate-Resistant Corn · 2011 · compared with absence of PRE herbicide

    Opposite direction

231 papers more in this group

See all 240 papers →

herbicide · yield · Zea mays (maize)Positive and negative results

651 papers: 500 positive, 151 negative or no effect

499 papers in the same direction as this claim · 127 in the opposite direction · 24 reporting no difference from an alternative

  1. negative
    Without herbicide, yield was reduced regardless of row spacing or population.

    Influence of Narrow Row/High Population Corn (Zea mays) on Weed Control and Light Transmittance · 1995

    Opposite direction

  2. negative
    Lack of weed control reduced green ear yield and grain yield of corn.

    Corn yield response to weed and fall armyworm controls · 2010 · compared with weed control

    Opposite direction

  3. no effect
    Herbicide-treated plots had no significant corn grain yield difference from handweeded plots.

    Effect of Postemergence Application Rate and Timing of Mesotrione on Corn (Zea mays) Response and Weed Control1 · 2002 · compared with handweeded plots

    Opposite direction

  4. negative
    Withholding herbicides reduced continuous corn yield by 10 to 27% in ridge tillage.

    Weed Seed Populations in Ridge and Conventional Tillage · 1988

    Opposite direction

  5. negative
    Corn yields in narrow rows with reduced herbicide were about 10% below wide rows with full herbicide.

    Effect of row width on herbicide and cultivation requirements in row crops · 1992 · compared with WR with 100% RAR

    Opposite direction

  6. no effect
    Under conventional tillage, several herbicide treatments gave corn yield similar to weed-free conditions.

    Influence of Tillage Systems on Giant Foxtail,Setaria faberi, and Velvetleaf,Abutilon theophrasti, Density and Control in Corn,Zea mays · 1988 · compared with weed-free

    Opposite direction

  7. negative
    Competition from weeds and uncontrolled vetch in treatments without herbicides reduced corn yield in three of four years by an average of 46% compared with a standard PRE herbicide treatment.

    Reduced-Herbicide Weed Management Systems for No-Tillage Corn (Zea mays) in a Hairy Vetch (Vicia villosa) Cover Crop · 1993 · compared with a standard PRE herbicide treatment of 0.6 kg ai/ha of paraquat plus 1.1 kg ai/ha of atrazine plus 2.2 kg ai/ha of metolachlor

    Opposite direction

  8. no effect
    Corn yield was unaffected by residual herbicide timing or rate.

    Residual Herbicides used in Combination with Glyphosate and Glufosinate in Corn (Zea mays)1 · 2002

    Opposite direction

642 papers more in this group

See all 651 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.