Abstract
Field studies were conducted in 2003 and 2004 near Scottsbluff and Sidney, NE, to identify efficacious chemical weed-control options for irrigated and dryland chickpea production. Weed control had a greater relative effect on chickpea yield in the irrigated system than the dryland system, with yield from the hand-weeded check exceeding the nontreated check by 1,500% in the irrigated system and 87% in the dryland system. Imazethapyr, applied preemergence at the rate of 0.053 kg ai/ha, reduced plant height, delayed plant maturity, and caused leaf chlorosis. At Scottsbluff, preplant-incorporated ethalfluralin caused significant crop injury in 2003, but the ethalfluralin treatment also maintained weed densities 4 wk after crop emergence that were not significantly different than the hand-weeded check at both locations in 2003 and 2004. Treatments containing sulfentrazone provided a similar level of weed control but without any evidence of crop injury. Pendimethalin and pendimethalin dimethenamid-P applied preemergence provided acceptable weed control in the irrigated system, where water was applied within 4 d after herbicide application, but did not provide acceptable control in the dryland system.Nomenclature: Dimethenamid-P, ethalfluralin, imazethapyr, pendimethalin, sulfentrazone, chickpea, Cicer arietinum L.Additional index words: Herbicides, garbanzo bean, kabuli chickpea.Abbreviations: WAE, weeks after emergence.
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Claims 14
Claim · model-written summary
Weed control had a greater relative effect on chickpea yield in the irrigated system than in the dryland system.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- Weed controle1
- Outcome
- relative effect on chickpea yielde1
- Direction
- greatere1
- Comparator
- dryland systeme1
- Setting
- irrigated systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e1“Weed control had a greater relative effect on chickpea yield in the irrigated system than the dryland system”
Claim · model-written summary
Hand weeding exceeded the nontreated check in chickpea yield by 1,500% in the irrigated system.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- hand-weeded checke2
- Outcome
- yielde2
- Direction
- exceedinge2
- Value
- 1,500%e2
- Comparator
- nontreated checke2
- Setting
- irrigated systeme2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e2“yield from the hand-weeded check exceeding the nontreated check by 1,500% in the irrigated system and 87% in the dryland system”
Claim · model-written summary
Hand weeding exceeded the nontreated check in chickpea yield by 87% in the dryland system.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- hand-weeded checke2
- Outcome
- yielde2
- Direction
- exceedinge2
- Value
- 87%e2
- Comparator
- nontreated checke2
- Setting
- dryland systeme2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e2“yield from the hand-weeded check exceeding the nontreated check by 1,500% in the irrigated system and 87% in the dryland system”
Claim · model-written summary
Imazethapyr applied preemergence reduced chickpea plant height.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Imazethapyr, applied preemergence at the rate of 0.053 kg ai/hae3
- Outcome
- plant heighte3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e3“Imazethapyr, applied preemergence at the rate of 0.053 kg ai/ha, reduced plant height, delayed plant maturity, and caused leaf chlorosis”
Claim · model-written summary
Imazethapyr applied preemergence delayed chickpea plant maturity.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Imazethapyr, applied preemergence at the rate of 0.053 kg ai/hae3
- Outcome
- plant maturitye3
- Direction
- delayede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e3“Imazethapyr, applied preemergence at the rate of 0.053 kg ai/ha, reduced plant height, delayed plant maturity, and caused leaf chlorosis”
Claim · model-written summary
Imazethapyr applied preemergence caused leaf chlorosis in chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Imazethapyr, applied preemergence at the rate of 0.053 kg ai/hae3
- Outcome
- leaf chlorosise3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e3“Imazethapyr, applied preemergence at the rate of 0.053 kg ai/ha, reduced plant height, delayed plant maturity, and caused leaf chlorosis”
Claim · model-written summary
Preplant-incorporated ethalfluralin caused significant crop injury at Scottsbluff in 2003.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- preplant-incorporated ethalfluraline4
- Outcome
- crop injurye4
- Qualifier
- in 2003e4
- Setting
- Scottsbluffe4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e4“At Scottsbluff, preplant-incorporated ethalfluralin caused significant crop injury in 2003”
Claim · model-written summary
Ethalfluralin kept weed densities 4 weeks after crop emergence not significantly different from the hand-weeded check.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- ethalfluraline5
- Outcome
- weed densitiese5
- Direction
- no_changeinferrede5
- Qualifier
- 4 wk after crop emergencee5
- Comparator
- hand-weeded checke5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e5“the ethalfluralin treatment also maintained weed densities 4 wk after crop emergence that were not significantly different than the hand-weeded check at both locations in 2003 and 2004”
Claim · model-written summary
Sulfentrazone treatments provided a similar level of weed control.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- sulfentrazonee6
- Outcome
- weed controle6
- Direction
- no_changeinferrede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e6“Treatments containing sulfentrazone provided a similar level of weed control but without any evidence of crop injury”
Claim · model-written summary
Sulfentrazone treatments caused no evidence of crop injury in chickpea.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- sulfentrazonee6
- Outcome
- crop injurye6
- Qualifier
- without any evidencee6
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e6“Treatments containing sulfentrazone provided a similar level of weed control but without any evidence of crop injury”
Claim · model-written summary
Pendimethalin applied preemergence gave acceptable weed control in the irrigated system with water applied within 4 d.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Pendimethaline7
- Outcome
- acceptable weed controle7
- Qualifier
- where water was applied within 4 d after herbicide applicatione7
- Setting
- irrigated systeme7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e7“Pendimethalin and pendimethalin dimethenamid-P applied preemergence provided acceptable weed control in the irrigated system, where water was applied within 4 d after herbicide application, but did not provide acceptable control in the dryland system”
Claim · model-written summary
Pendimethalin dimethenamid-P applied preemergence gave acceptable weed control in the irrigated system with water applied within 4 d.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- pendimethalin dimethenamid-Pe7
- Outcome
- acceptable weed controle7
- Qualifier
- where water was applied within 4 d after herbicide applicatione7
- Setting
- irrigated systeme7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e7“Pendimethalin and pendimethalin dimethenamid-P applied preemergence provided acceptable weed control in the irrigated system, where water was applied within 4 d after herbicide application, but did not provide acceptable control in the dryland system”
Claim · model-written summary
Pendimethalin applied preemergence did not give acceptable weed control in the dryland system.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Pendimethaline7
- Outcome
- acceptable controle7
- Setting
- dryland systeme7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e7“Pendimethalin and pendimethalin dimethenamid-P applied preemergence provided acceptable weed control in the irrigated system, where water was applied within 4 d after herbicide application, but did not provide acceptable control in the dryland system”
Claim · model-written summary
Pendimethalin dimethenamid-P applied preemergence did not give acceptable weed control in the dryland system.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- pendimethalin dimethenamid-Pe7
- Outcome
- acceptable controle7
- Setting
- dryland systeme7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Chemical Weed Control in Dryland and Irrigated Chickpea1”
e7“Pendimethalin and pendimethalin dimethenamid-P applied preemergence provided acceptable weed control in the irrigated system, where water was applied within 4 d after herbicide application, but did not provide acceptable control in the dryland system”
The same questions in other papers
pendimethalin · control · Cicer arietinum (chickpea)Positive and negative results
1 in the opposite direction
- positive
Imazethapyr · growth · Cicer arietinum (chickpea)Positive and negative results
3 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- positive
- positive
6 papers more in this group
See all 10 papers →Imazethapyr · phenology · Cicer arietinum (chickpea)Results agree
2 papers in the same direction as this paper
- negative
- negative
sulfentrazone · weed · Cicer arietinum (chickpea)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
pendimethalin · weed · Cicer arietinum (chickpea)Results agree
48 papers in the same direction as this paper
- positive
- positive
- positive
45 papers more in this group
See all 49 papers →herbicide · growth · Cicer arietinum (chickpea)Positive and negative results
8 papers in the same direction as this paper · 21 in the opposite direction
- negative
- positive
- positive
26 papers more in this group
See all 30 papers →herbicide · phenology · Cicer arietinum (chickpea)Results agree
2 papers in the same direction as this paper
- negative
- negative
herbicide · physiology: pigments · Cicer arietinum (chickpea)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.