Abstract
Abstract Chickpea provides significant diversification benefits for semiarid cropping systems. However, the crop’s slow emergence and open canopy growth habit make it a poor competitor against rapidly growing weeds during the early season. In 2022 and 2023, field experiments were conducted at two sites, the Montana State University (MSU) Southern Agricultural Research Center, in Huntley, and the MSU Post Agronomy Farm, in Bozeman, to evaluate broadleaf weed management by integrating planting date and fall-applied,soil-active herbicides to chickpea. Application of dimethenamid at 950 g ai ha −1 + pendimethalin at 1.68 kg ai ha −1 , and carfentrazone + sulfentrazone at 238 g ai ha −1 resulted in better protection of yield against weeds and provided longer residual activity for control of kochia, redroot pigweed, and common mallow by reducing weed density to 10 to 20 plants m −2 compared with 50 to 70 plants m −2 in an untreated check. Pyridate (700 g ai ha −1 ) applied postemergence was required with these treatments to eliminate escaped weeds. Early planting provided an additional biomass reduction compared to late planting due to the crop emergence before or around the same time as the weeds. Planting date had no effect on weed density or grain yield in plots that received dimethenamid + pendimethalin and carfentrazone + sulfentrazone, suggesting that these herbicides can extend the planting date window. These herbicide programs and early planting can be integrated with other weed management tactics for additional weed management options in chickpea.
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Claims 8
Claim · model-written summary
Dimethenamid plus pendimethalin protected chickpea yield against weeds and controlled three weed species, reducing weed density relative to untreated plots.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- dimethenamid at 950 g ai ha −1 + pendimethalin at 1.68 kg ai ha −1e0
- Outcome
- weed densitye0
- Direction
- reducinge0
- Value
- 10 to 20 plants m −2e0
- Qualifier
- 50 to 70 plants m −2e0
- Comparator
- untreated checke0
BassiaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of dimethenamid at 950 g ai ha −1 + pendimethalin at 1.68 kg ai ha −1 , and carfentrazone + sulfentrazone at 238 g ai ha −1 resulted in better protection of yield against weeds and provided longer residual activity for control of kochia, redroot pigweed, and common mallow by reducing weed density to 10 to 20 plants m −2 compared with 50 to 70 plants m −2 in an untreated check”
t0“chickpea”
Claim · model-written summary
Carfentrazone plus sulfentrazone protected yield and reduced weed density relative to untreated plots.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- carfentrazone + sulfentrazone at 238 g ai ha −1e0
- Interactor
- redroot pigweede0weed
- Outcome
- weed densitye0
- Direction
- reducinge0
- Value
- 10 to 20 plants m −2e0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of dimethenamid at 950 g ai ha −1 + pendimethalin at 1.68 kg ai ha −1 , and carfentrazone + sulfentrazone at 238 g ai ha −1 resulted in better protection of yield against weeds and provided longer residual activity for control of kochia, redroot pigweed, and common mallow by reducing weed density to 10 to 20 plants m −2 compared with 50 to 70 plants m −2 in an untreated check”
t0“chickpea”
Claim · model-written summary
Postemergence pyridate was required to eliminate escaped weeds.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Pyridate (700 g ai ha −1 ) applied postemergencee0
- Outcome
- escaped weedse0
- Direction
- eliminatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pyridate (700 g ai ha −1 ) applied postemergence was required with these treatments to eliminate escaped weeds.”
t0“chickpea”
Claim · model-written summary
Early planting reduced weed biomass compared with late planting.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Early plantinge0
- Outcome
- biomasse0
- Direction
- reductione0
- Comparator
- late plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early planting provided an additional biomass reduction compared to late planting due to the crop emergence before or around the same time as the weeds.”
t0“chickpea”
Claim · model-written summary
Planting date did not change weed density in plots receiving the specified herbicides.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Planting datee0
- Outcome
- weed densitye0
- Direction
- no effecte0
- Qualifier
- dimethenamid + pendimethalin and carfentrazone + sulfentrazonee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Planting date had no effect on weed density or grain yield in plots that received dimethenamid + pendimethalin and carfentrazone + sulfentrazone”
t0“chickpea”
Claim · model-written summary
Planting date did not change grain yield in plots receiving the specified herbicides.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Planting datee0
- Outcome
- grain yielde0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Planting date had no effect on weed density or grain yield in plots that received dimethenamid + pendimethalin and carfentrazone + sulfentrazone”
t0“chickpea”
Claim · model-written summary
The herbicides may extend the chickpea planting date window.
- Taxon
- chickpeaCicer arietinumt0
- Outcome
- extend the planting date windowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggesting that these herbicides can extend the planting date window”
t0“chickpea”
Claim · model-written summary
The authors recommend integrating these herbicide programs and early planting with other weed management tactics.
- Taxon
- chickpeaCicer arietinume0
- Outcome
- additional weed management optionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These herbicide programs and early planting can be integrated with other weed management tactics for additional weed management options in chickpea.”
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See all 85 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.