Abstract
Ten field trials were conducted in the Waikato and Bay of Plenty between 1995 and 1997 to evaluate the effectiveness of post-emergence halosulfuron for control of purple nutsedge (Cyperus rotundus) in maize. Halosulfuron severely damaged the foliage of purple nutsedge and reduced its population and ground cover at rates between 32.5 and 130 g/ha. Repeat annual applications of halosulfuron were necessary to reduce the number of tubers to low levels. Halosulfuron caused chlorosis and some stunting of young maize plants but they grew out of the damage and neither grain yields nor crop maturity were affected. Crop tolerance was similar following prior use of any of the currently registered pre-emergence herbicides for maize.
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Claims 6
Claim · model-written summary
Post-emergence halosulfuron severely damaged the foliage of purple nutsedge in maize.
- Treatment
- post-emergence halosulfurone0
- Interactor
- purple nutsedgee0weed
- Outcome
- foliagee1
- Direction
- severely damagede1
- Setting
- Waikato and Bay of Plentye0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ten field trials were conducted in the Waikato and Bay of Plenty between 1995 and 1997 to evaluate the effectiveness of post-emergence halosulfuron for control of purple nutsedge (Cyperus rotundus) in maize”
e1“Halosulfuron severely damaged the foliage of purple nutsedge and reduced its population and ground cover at rates between 32.5 and 130 g/ha”
Claim · model-written summary
Halosulfuron at 32.5 to 130 g/ha reduced purple nutsedge population and ground cover in maize.
- Treatment
- rates between 32.5 and 130 g/hae1
- Interactor
- purple nutsedgee0weed
- Outcome
- population and ground covere1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ten field trials were conducted in the Waikato and Bay of Plenty between 1995 and 1997 to evaluate the effectiveness of post-emergence halosulfuron for control of purple nutsedge (Cyperus rotundus) in maize”
e1“Halosulfuron severely damaged the foliage of purple nutsedge and reduced its population and ground cover at rates between 32.5 and 130 g/ha”
Claim · model-written summary
Repeated annual halosulfuron applications were needed to reduce purple nutsedge tuber numbers to low levels in maize.
- Treatment
- Repeat annual applications of halosulfurone2
- Interactor
- purple nutsedgee0weed
- Outcome
- number of tuberse2
- Direction
- reducee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ten field trials were conducted in the Waikato and Bay of Plenty between 1995 and 1997 to evaluate the effectiveness of post-emergence halosulfuron for control of purple nutsedge (Cyperus rotundus) in maize”
e2“Repeat annual applications of halosulfuron were necessary to reduce the number of tubers to low levels”
Claim · model-written summary
Halosulfuron caused chlorosis and some stunting of young maize plants.
- Organ / stage
- young maize plantse3
- Treatment
- Halosulfurone3
- Outcome
- chlorosis and some stuntinge3
- Direction
- causede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ten field trials were conducted in the Waikato and Bay of Plenty between 1995 and 1997 to evaluate the effectiveness of post-emergence halosulfuron for control of purple nutsedge (Cyperus rotundus) in maize”
e3“Halosulfuron caused chlorosis and some stunting of young maize plants but they grew out of the damage and neither grain yields nor crop maturity were affected”
Claim · model-written summary
Halosulfuron did not change grain yield or crop maturity of maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ten field trials were conducted in the Waikato and Bay of Plenty between 1995 and 1997 to evaluate the effectiveness of post-emergence halosulfuron for control of purple nutsedge (Cyperus rotundus) in maize”
e3“Halosulfuron caused chlorosis and some stunting of young maize plants but they grew out of the damage and neither grain yields nor crop maturity were affected”
Claim · model-written summary
Maize crop tolerance to halosulfuron was similar after prior use of any registered pre-emergence herbicide.
- Outcome
- Crop tolerancee4
- Direction
- similare4
- Qualifier
- following prior use of any of the currently registered pre-emergence herbicidese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ten field trials were conducted in the Waikato and Bay of Plenty between 1995 and 1997 to evaluate the effectiveness of post-emergence halosulfuron for control of purple nutsedge (Cyperus rotundus) in maize”
e4“Crop tolerance was similar following prior use of any of the currently registered pre-emergence herbicides for maize”
The same questions in other papers
Halosulfuron-methyl · yield · Zea mays (maize)Positive and negative results
9 papers in the same direction as this paper · 2 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
10 papers more in this group
See all 14 papers →Halosulfuron-methyl · physiology: pigments · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- negative
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.