Intervention effectmodel-written summary

With cultivation or postemergence imazethapyr, half rate preplant herbicides gave soybean yield equivalent to full rate herbicides.

A claim from Weed Control With Reduced Rates of Four Soil Applied Soybean Herbicides · 1996

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

With cultivation or postemergence imazethapyr, half rate preplant herbicides gave soybean yield equivalent to full rate herbicides.

Taxon
soybeanGlycine maxe0
Treatment
0.5× rate of preplant clomazone, imazaquin, metribuzin, and metribuzin + chlorimuron followed by either cultivation or imazethapyr POSTe0
Outcome
soybean yielde0
Direction
equivalente0
Comparator
1× rate of the PPI herbicides followed by either cultivation or imazethapyre0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Weed control and soybean yield with the 0.5× rate of preplant clomazone, imazaquin, metribuzin, and metribuzin + chlorimuron followed by either cultivation or imazethapyr POST was equivalent to a 1× rate of the PPI herbicides followed by either cultivation or imazethapyr”

✓ located verbatim in the source · abstract, characters 337–608

Title

Weed Control With Reduced Rates of Four Soil Applied Soybean Herbicides

Kilwake C. Muyonga; Michael S. Defelice; Barry D. Sims Weed Science 1996. doi:10.1017/s0043174500093693

Other claims from this paper (3)

Record rev-231bbadf672fb3f7c56261ccaf46d7a29498405df0541d721af207ada917893b · schema claims-v0.9 · position 2 in the model’s answer

imazaquin · yield · Glycine max (soybean)Results differ

15 papers: 9 positive, 6 negative or no effect

5 papers in the same direction as this claim · 9 reporting no difference from an alternative

  1. positive
    Soybean yields with labeled clomazone plus imazaquin equaled a handweeded check.

    Weed Control in Soybeans (Glycine max) with Reduced Rates of Postemergence Herbicides · 1989 · compared with handweeded check

    No difference from an alternativeCited by this paper

  2. positive
    Half-rate herbicide mixture increased soybean yield relative to labeled rates.

    Weed Control with Clomazone Alone and with Other Herbicides · 1989 · compared with the mixture at labeled rates

    No difference from an alternative

  3. positive
    Imazaquin and metribuzin-chlorimuron PRE/POST programs tank-mixed with glyphosate or paraquat increased soybean yield compared with the same treatments under tillage.

    Tank-mix Combinations for Weed Control in Stale Seedbed Soybean (Glycine max) · 1992 · compared with the same treatments used with tillage

    No difference from an alternative

  4. positive
    At the 10-leaf stage, a PRE application of imazaquin increased soybean yield compared with AC 263,222 applied alone at 35 g ai/ha.

    Use of AC 263,222 for Sicklepod (Cassia obtusifolia) Control in Soybean (Glycine max) · 1991 · compared with AC 263,222 applied alone

    No difference from an alternative

  5. positive
    Pendimethalin imazaquin followed by glufosinate increased soybean yield in narrow relative to wide rows at Starkville in 1998.

    Influence of Row Spacing and Residual Herbicides on Weed Control in Glufosinate-Resistant Soybean (Glycine max)1 · 2002 · compared with wide rows

    No difference from an alternative

  6. positive
    Imazaquin followed by imazaquin yielded similarly to weed-free soybean in 1993.

    Sicklepod (Senna obtusifolia) Control in Soybean (Glycine max) with Single and Sequential Herbicide Applications · 1997 · compared with weed-free soybean

    No difference from an alternative

  7. positive
    Soybean yield was highest with preemergence imazaquin followed by AC 263,222 at 9 g/ha and two cultivations.

    Cultivation Enhances Weed Control in Soybean (Glycine max) with AC 263,222 · 1996

    No difference from an alternative

  8. positive
    Imazaquin and metribuzin combinations increased soybean seed yield 75% compared with the untreated check in 1993.

    Sicklepod (Senna obtusifolia) Control in Soybean (Glycine max) with Imazaquin and Metribuzin Combinations · 1996 · compared with untreated check

    No difference from an alternative

6 papers more in this group

See all 15 papers →

chlorimuron · yield · Glycine max (soybean)Results differ

33 papers: 16 positive, 17 negative or no effect

16 papers in the same direction as this claim · 16 reporting no difference from an alternative

  1. negative
    Chlorimuron plus thifensulfuron added to LPOST glyphosate lowered soybean yield.

    Glyphosate With and Without Residual Herbicides in No-Till Glyphosate-Resistant Soybean (Glycine max)1 · 2000 · compared with same rate of glyphosate applied alone

    Same directionCites this paper

  2. no effect
    Soybean yield did not significantly differ among full or half residual rates and sequential glyphosate.

    Reduced rates of sulfentrazone plus chlorimuron and glyphosate in no-till, narrow-row, glyphosate-resistantGlycine max · 2000 · compared with sequential glyphosate

    Same directionCites this paper

  3. positive
    Imazaquin and metribuzin-chlorimuron PRE/POST programs tank-mixed with glyphosate or paraquat increased soybean yield compared with the same treatments under tillage.

    Tank-mix Combinations for Weed Control in Stale Seedbed Soybean (Glycine max) · 1992 · compared with the same treatments used with tillage

    No difference from an alternative

  4. positive
    Metribuzin plus chlorimuron mixed with paraquat increased soybean yields versus paraquat alone.

    Non-selective and Selective Herbicide Combinations in Stale Seedbed (Glycine max) · 1995 · compared with paraquat alone

    No difference from an alternative

  5. positive
    Postemergence chlorimuron improved soybean yield.

    Broadleaf Weed Control with Trifluralin Plus Flumetsulam in Soybean (Glycine max) · 1995 · compared with soil-applied herbicides alone

    No difference from an alternative

  6. positive
    Soybean yield with paraquat at 1050 g ai/ha plus residual herbicides was greater than with paraquat at 350 g/ha.

    Influence of Residual Herbicides on Rate of Paraquat and Glyphosate in Stale Seedbed Soybean (Glycine max) · 1993 · compared with paraquat at 350 g/ha

    No difference from an alternative

  7. positive
    Soybean yield was highest for the chlorimuron standard across cultivation treatments.

    Comparison of Herbicide Programs and Cultivation for Sicklepod (Cassia obtusifolia) Control in Soybean (Glycine max) · 1994 · compared with other treatments

    No difference from an alternative

  8. positive
    Metribuzin followed by chlorimuron yielded similarly to weed-free soybean in 1991 and 1992.

    Sicklepod (Senna obtusifolia) Control in Soybean (Glycine max) with Single and Sequential Herbicide Applications · 1997 · compared with weed-free soybean

    No difference from an alternative

24 papers more in this group

See all 33 papers →

metribuzin · yield · Glycine max (soybean)Results differ

61 papers: 37 positive, 24 negative or no effect

23 papers in the same direction as this claim · 37 reporting no difference from an alternative

  1. positive
    Adding metribuzin to paraquat maximized soybean yield.

    Glyphosate-resistant Horseweed (Conyza canadensis) Control Using Glyphosate-, Paraquat-, and Glufosinate-Based Herbicide Programs · 2008

    No difference from an alternative

  2. positive
    Half-rate herbicide mixture increased soybean yield relative to labeled rates.

    Weed Control with Clomazone Alone and with Other Herbicides · 1989 · compared with the mixture at labeled rates

    No difference from an alternative

  3. positive
    PRE S -metolachlor plus metribuzin gave among the highest net incomes in both years.

    Glyphosate-Resistant Waterhemp (Amaranthus rudis) Control and Economic Returns with Herbicide Programs in Soybean · 2009 · compared with glyphosate-only treatment

    No difference from an alternative

  4. positive
    Postemergence-directed 2,4-DB, linuron and a metribuzin plus 2,4-DB tank mixture gave the highest soybean seed yields, equivalent to the weed-free control.

    Control of Annual Morningglories (Ipomoeaspp.) in Soybeans (Glycine max) · 1984 · compared with weed-free control

    No difference from an alternative

  5. positive
    Metribuzin escape weeds caused lower soybean yield losses than controls at equal density.

    Size-Dependent Economic Thresholds for Three Broadleaf Weed Species in Soybeans · 1991 · compared with control plants

    No difference from an alternative

  6. positive
    Imazaquin and metribuzin-chlorimuron PRE/POST programs tank-mixed with glyphosate or paraquat increased soybean yield compared with the same treatments under tillage.

    Tank-mix Combinations for Weed Control in Stale Seedbed Soybean (Glycine max) · 1992 · compared with the same treatments used with tillage

    No difference from an alternative

  7. positive
    The standard treatment provided the highest soybean yield at 3.3 t ha −1.

    Weed control in soybean using pyroxasulfone and sulfentrazone · 2015

    No difference from an alternative

  8. positive
    The five-herbicide combination increased soybean yield by 2350 kg/ha, or 1.91 times, relative to the untreated variant at the first location.

    Economic Feasibility of Chemical Weed Control in Soybean Production in Serbia · 2020 · compared with untreated variant

    No difference from an alternative

52 papers more in this group

See all 61 papers →

3 of 5 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.