Abstract
In the greenhouse, soil applications of primisulfuron (40 g ai ha –1 ) reduced growth of emerged rhizome johnsongrass plants more than nicosulfuron (40 g ai ha –1 ). Both herbicides reduced growth more when applied to foliage only; a further decrease in growth did not occur for applications to both soil and foliage. Primisulfuron did not completely prevent regrowth of johnsongrass with any application method. Nicosulfuron prevented regrowth when applied to the foliage and to both soil and foliage. In single-year field studies in corn at four dryland sites and two irrigated sites, 50:50 split applications of primisulfuron (40 g ai ha –1 ) and nicosulfuron (35 g ai ha –1 ) approximately 2 wk apart provided the most consistent rhizome johnsongrass control compared with early or late single applications when visually rated 8 wk after the first application. Nicosulfuron treatments were more effective than primisulfuron treatments at both dryland sites the first year and at one of two dryland sites the second year. Primisulfuron and nicosulfuron at the irrigated site the first year were equivalent in efficacy. Nicosulfuron was more effective than primisulfuron at the irrigated site the second year. Primisulfuron or nicosulfuron treatments more than doubled corn yields at the dryland sites both years regardless of application timing. Split applications of primisulfuron or nicosulfuron provided the highest yields (approximately 80% increase over untreated plots) at the irrigated site the first year. All treatments provided equivalent yield increases (approximately 50%) the second year.
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Claims 14
Claim · model-written summary
Soil primisulfuron reduced emerged johnsongrass growth more than soil nicosulfuron.
- Taxon
- johnsongrass
.jpg?width=60)
Sorghum halepensee0 - Treatment
- primisulfuron (40 g ai ha –1 )e0
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- growth of emerged rhizome johnsongrass plantse0
- Direction
- reducede0
- Comparator
- nicosulfuron (40 g ai ha –1 )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“soil applications of primisulfuron (40 g ai ha –1 ) reduced growth of emerged rhizome johnsongrass plants more than nicosulfuron (40 g ai ha –1 )”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Foliage application reduced johnsongrass growth more than soil application for both herbicides.
- Taxon
- johnsongrassSorghum halepenset0
- Treatment
- foliage onlye0
- Interactor
- johnsongrassSorghum halepenset0weed
- Outcome
- growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both herbicides reduced growth more when applied to foliage only”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Adding soil application to foliage application did not further decrease johnsongrass growth.
- Taxon
- johnsongrassSorghum halepenset0
- Treatment
- both soil and foliagee0
- Outcome
- growthe0
- Direction
- did not occure0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a further decrease in growth did not occur for applications to both soil and foliage”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Primisulfuron did not completely prevent johnsongrass regrowth by any application method.
- Taxon
- johnsongrassSorghum halepensee0
- Treatment
- Primisulfurone0
- Outcome
- regrowth of johnsongrasse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primisulfuron did not completely prevent regrowth of johnsongrass with any application method”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Nicosulfuron prevented johnsongrass regrowth when applied to foliage or both soil and foliage.
- Taxon
- johnsongrassSorghum halepenset0
- Treatment
- Nicosulfurone0
- Outcome
- prevented regrowthe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nicosulfuron prevented regrowth when applied to the foliage and to both soil and foliage”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Split primisulfuron and nicosulfuron applications gave the most consistent johnsongrass control compared with single applications.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- 50:50 split applications of primisulfuron (40 g ai ha –1 ) and nicosulfuron (35 g ai ha –1 )e0
- Interactor
- johnsongrassSorghum halepensee0weed
- Outcome
- rhizome johnsongrass controle0
- Direction
- most consistente0
- Comparator
- early or late single applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“50:50 split applications of primisulfuron (40 g ai ha –1 ) and nicosulfuron (35 g ai ha –1 ) approximately 2 wk apart provided the most consistent rhizome johnsongrass control compared with early or late single applications”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Nicosulfuron was more effective than primisulfuron at both dryland sites in year one and one of two in year two.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Nicosulfuron treatmentse0
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- primisulfuron treatmentse0
- Setting
- dryland sitese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nicosulfuron treatments were more effective than primisulfuron treatments at both dryland sites the first year and at one of two dryland sites the second year”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
The two herbicides had equivalent efficacy at the irrigated site in year one.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Primisulfurone0
- Outcome
- efficacye0
- Direction
- equivalente0
- Comparator
- nicosulfurone0
- Setting
- irrigated sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primisulfuron and nicosulfuron at the irrigated site the first year were equivalent in efficacy”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Nicosulfuron was more effective than primisulfuron at the irrigated site in year two.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Nicosulfurone0
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- primisulfurone0
- Setting
- irrigated sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nicosulfuron was more effective than primisulfuron at the irrigated site the second year”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Primisulfuron treatments more than doubled corn yields at dryland sites in both years.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Primisulfurone0
- Outcome
- corn yieldse0
- Direction
- more than doublede0
- Setting
- dryland sitese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primisulfuron or nicosulfuron treatments more than doubled corn yields at the dryland sites both years regardless of application timing”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Nicosulfuron treatments more than doubled corn yields at dryland sites in both years.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- nicosulfurone0
- Outcome
- corn yieldse0
- Direction
- more than doublede0
- Setting
- dryland sitese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Primisulfuron or nicosulfuron treatments more than doubled corn yields at the dryland sites both years regardless of application timing”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Split primisulfuron applications gave the highest irrigated corn yields in year one, about 80% above untreated plots.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Split applications of primisulfurone0
- Outcome
- yieldse0
- Direction
- increasee0
- Value
- approximately 80%e0
- Comparator
- untreated plotse0
- Setting
- irrigated sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Split applications of primisulfuron or nicosulfuron provided the highest yields (approximately 80% increase over untreated plots) at the irrigated site the first year”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
Split nicosulfuron applications gave the highest irrigated corn yields in year one, about 80% above untreated plots.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- nicosulfurone0
- Outcome
- yieldse0
- Direction
- increasee0
- Value
- approximately 80%e0
- Comparator
- untreated plotse0
- Setting
- irrigated sitee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Split applications of primisulfuron or nicosulfuron provided the highest yields (approximately 80% increase over untreated plots) at the irrigated site the first year”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
Claim · model-written summary
All treatments gave equivalent corn yield increases of approximately 50% in year two.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- All treatmentse0
- Outcome
- yielde0
- Direction
- increasese0
- Value
- approximately 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All treatments provided equivalent yield increases (approximately 50%) the second year”
t0“Rhizome Johnsongrass (Sorghum halepense) Control in Corn (Zea mays)”
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