Abstract
Glyphosate was compared with other commonly used corn herbicides at three locations in Kentucky in 1998 and 1999. Sequential glyphosate treatments provided greater than 87% control of common cocklebur, ivyleaf morningglory, common lambsquarters, and giant ragweed. Control of these species with glyphosate treatments was similar to the control with atrazine plus other postemergence (POST) herbicides. Generally, treatments containing s-triazines and chloracetamides applied to the soil surface were not as effective as sequential glyphosate or atrazine plus POST herbicides. Corn yield was not significantly different at any location or for any year, whereas differences in net return occurred at one location in 1998.Nomenclature: Atrazine; chloracetamides; glyphosate; s-triazines; common cocklebur, Xanthium strumarium L. #3 XANST; common lambsquarters, Chenopodium album L. # CHEAL; giant ragweed, Ambrosia trifida L. # AMBTR; ivyleaf morningglory, Ipomoea hederacea L. Jacq. # IPOHE; corn, Zea mays L. ‘DeKalb 626RR’.Additional index words: Acetochlor, dicamba, Digitaria sanguinalis L. Scop. DIGSA, dimethenamid, giant foxtail, large crabgrass, 1-(4-methoxy-6-methyl-triazin-2-yl)-3-[2-(3,3,3-trifluoropropyl)-phenylsulfonyl]-urea, metolachlor, net return, primisulfuron, prosulfuron, Roundup Ready® corn, Setaria faberi Herrm. SETFA, simazine.Abbreviations: ASN, as needed; MP, mid-postemergence; POST, postemergence; PRE, preemergence; REG, regrowth.
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Claims 6
Claim · model-written summary
Sequential glyphosate gave greater than 87% control of common cocklebur, ivyleaf morningglory and common lambsquarters.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- Sequential glyphosate treatmentse0
- Interactor
- common cocklebure0weed
- Second interactor
- ivyleaf morningglory
Ipomoea hederaceae0weed - Outcome
- control of common cocklebur, ivyleaf morningglory, common lambsquarterse0
- Value
- greater than 87%e0
- Qualifier
- giant ragweede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sequential glyphosate treatments provided greater than 87% control of common cocklebur, ivyleaf morningglory, common lambsquarters, and giant ragweed.”
t0“Corn (Zea mays)”
Claim · model-written summary
Sequential glyphosate gave greater than 87% control of giant ragweed.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- Sequential glyphosate treatmentse0
- Interactor
- giant ragweed
.jpg?width=60)
Ambrosia trifidae0weed - Outcome
- control of common cocklebur, ivyleaf morningglory, common lambsquarters, and giant ragweede0
- Value
- greater than 87%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Sequential glyphosate treatments provided greater than 87% control of common cocklebur, ivyleaf morningglory, common lambsquarters, and giant ragweed.”
t0“Corn (Zea mays)”
Claim · model-written summary
Glyphosate and atrazine plus other POST herbicides gave similar control of the named weeds.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- glyphosate treatmentse0
- Outcome
- Control of these speciese0
- Direction
- similare0
- Comparator
- atrazine plus other postemergence (POST) herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Control of these species with glyphosate treatments was similar to the control with atrazine plus other postemergence (POST) herbicides.”
t0“Corn (Zea mays)”
Claim · model-written summary
Soil-applied s-triazine and chloracetamide treatments were generally less effective than sequential glyphosate or atrazine plus POST herbicides.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- treatments containing s-triazines and chloracetamides applied to the soil surfacee0
- Outcome
- not as effectivee0
- Direction
- not as effectivee0
- Comparator
- sequential glyphosate or atrazine plus POST herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatments containing s-triazines and chloracetamides applied to the soil surface were not as effective as sequential glyphosate or atrazine plus POST herbicides.”
t0“Corn (Zea mays)”
Claim · model-written summary
Corn yield did not differ significantly across treatments at any location or year.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- Corn yielde0
- Direction
- not significantly differente0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn yield was not significantly different at any location or for any year”
t0“Corn (Zea mays)”
Claim · model-written summary
Net return differed among treatments at one location in 1998.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- differences in net returne0
- Setting
- one location in 1998e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“differences in net return occurred at one location in 1998”
t0“Corn (Zea mays)”
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