Abstract
Field experiments were conducted during 1998, 1999, and 2000 in Santa Fe, Argentina, to evaluate chlorimuron, clethodim, flumetsulam, 2,4-DB, glyphosate, and haloxyfop for control of broadleaf and grass weeds in established alfalfa. Herbicides were applied to alfalfa, 6 to 10 cm in height, after first or second cuttings. Clethodim and haloxyfop were highly effective against bermudagrass, barnyardgrass, and knotroot foxtail, and alfalfa yields were increased. 2,4-DB was effective against Scotch thistle, swinecress, turnipweed, and birdsrape mustard, but no effects were observed on alfalfa yields. Chlorimuron, flumetsulam, and glyphosate were effective against burning nettle, common chickweed, common lambsquarters, spiny cocklebur, and Persian speedwell, but they injured alfalfa and decreased yields.Nomenclature: Chlorimuron; clethodim; 2,4-DB; flumetsulam; glyphosate; haloxyfop; alfalfa, Medicago sativa (L.); barnyardgrass, Echinochloa crus-galli (L.) Beauv. #3 ECHGA; bermudagrass, Cynodon dactylon (L.) Pers. # CYNDA; birdsrape mustard, Brassica rapa (L.) # BRACA; burning nettle, Urtica urens (L.) # URTUR; common chickweed, Stellaria media (L.) Villars # STEME; common lambsquarters, Chenopodium album (L.) # CHEAL; knotroot foxtail, Setaria geniculata (Lam.) Beauv. # SETGE; Persian speedwell, Veronica persica Poir. # VERPE; Scotch thistle, Onopordum acanthium (L.); spiny cocklebur, Xanthium spinosum (L.) # XANSP; swinecress, Coronopus didymus Sm. # COPDI; turnipweed, Rapistrum rugosum (L.) All. # RASRU.Abbreviation: DAT, days after treatment.
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Claims 8
Claim · model-written summary
Clethodim effectively controlled bermudagrass, barnyardgrass and knotroot foxtail.
- Treatment
- Clethodime0
- Interactor
- bermudagrass
Cynodon dactylone0weed - Outcome
- highly effective against bermudagrass, barnyardgrass, and knotroot foxtaile0
- Direction
- highly effectivee0
Not reportedTaxonComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clethodim and haloxyfop were highly effective against bermudagrass, barnyardgrass, and knotroot foxtail, and alfalfa yields were increased.”
Claim · model-written summary
Haloxyfop effectively controlled bermudagrass, barnyardgrass and knotroot foxtail.
- Treatment
- haloxyfope0
- Interactor
- bermudagrassCynodon dactylone0weed
- Outcome
- highly effective against bermudagrass, barnyardgrass, and knotroot foxtaile0
- Direction
- highly effectivee0
Not reportedTaxonComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clethodim and haloxyfop were highly effective against bermudagrass, barnyardgrass, and knotroot foxtail, and alfalfa yields were increased.”
Claim · model-written summary
Alfalfa yields increased with clethodim and haloxyfop treatments.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- Clethodim and haloxyfope0
- Outcome
- alfalfa yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clethodim and haloxyfop were highly effective against bermudagrass, barnyardgrass, and knotroot foxtail, and alfalfa yields were increased.”
Claim · model-written summary
2,4-DB controlled Scotch thistle, swinecress, turnipweed and birdsrape mustard.
- Treatment
- 2,4-DBe0
- Interactor
- Scotch thistlee0weed
- Outcome
- effective against Scotch thistle, swinecress, turnipweed, and birdsrape mustarde0
- Direction
- effectivee0
Not reportedTaxonComparator
Verbatim
e0“2,4-DB was effective against Scotch thistle, swinecress, turnipweed, and birdsrape mustard, but no effects were observed on alfalfa yields.”
Claim · model-written summary
2,4-DB had no observed effect on alfalfa yield.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- 2,4-DBe0
- Outcome
- alfalfa yieldse0
- Direction
- no effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“2,4-DB was effective against Scotch thistle, swinecress, turnipweed, and birdsrape mustard, but no effects were observed on alfalfa yields.”
Claim · model-written summary
Chlorimuron, flumetsulam and glyphosate controlled five named broadleaf weeds.
- Treatment
- Chlorimuron, flumetsulam, and glyphosatee0
- Interactor
- burning nettlee0weed
- Outcome
- effective against burning nettle, common chickweed, common lambsquarters, spiny cocklebur, and Persian speedwelle0
- Direction
- effectivee0
Not reportedTaxonComparator
Verbatim
e0“Chlorimuron, flumetsulam, and glyphosate were effective against burning nettle, common chickweed, common lambsquarters, spiny cocklebur, and Persian speedwell, but they injured alfalfa and decreased yields.”
Claim · model-written summary
Chlorimuron, flumetsulam and glyphosate injured alfalfa.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Chlorimuron, flumetsulam, and glyphosatee0
- Outcome
- injured alfalfae0
- Direction
- injurede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorimuron, flumetsulam, and glyphosate were effective against burning nettle, common chickweed, common lambsquarters, spiny cocklebur, and Persian speedwell, but they injured alfalfa and decreased yields.”
Claim · model-written summary
Chlorimuron, flumetsulam and glyphosate decreased alfalfa yields.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Chlorimuron, flumetsulam, and glyphosatee0
- Outcome
- yieldse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorimuron, flumetsulam, and glyphosate were effective against burning nettle, common chickweed, common lambsquarters, spiny cocklebur, and Persian speedwell, but they injured alfalfa and decreased yields.”
The same questions in other papers
glyphosate · organism · Medicago sativa (alfalfa)Results differ
6 papers in the same direction as this paper · 5 in the opposite direction
- negative
- no effect
- negative
8 papers more in this group
See all 12 papers →glyphosate · yield · Medicago sativa (alfalfa)Results differ
9 papers in the same direction as this paper · 9 in the opposite direction
- no effect
- no effect
- positive
15 papers more in this group
See all 19 papers →clethodim · yield · Medicago sativa (alfalfa)Results agree
1 paper in the same direction as this paper
- positive
glyphosate · crop injury · Medicago sativa (alfalfa)Results agree
2 papers in the same direction as this paper
- negative
- no effect
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.