Abstract
Field studies were done to compare a wettable granular formulation (Authority 75 WG) and a suspension concentrate formulation (Authority 48 SC) of the herbicide sulfentrazone. A 6 x 2 factorial experiment was laid out in a split plot design to evaluate the effect of herbicide levels on phytotoxicity and residues in both leaves and the soil. One rate of the wettable granular formulation (0.225 kg/ha), four different rates of the suspension concentrate formulation (0.165 kg/ha, 0.205 kg/ha, 0.185 kg/ha, 0.225 kg/ha) and the control (0.00 kg/ha) were tested. Tobacco phytotoxicity at 27 days after transplanting (DAT) and soil residues at 12 WAT was measured. There was significantly higher (P<0.05) phytotoxicity in all treatments where herbicides were applied compared to the control. The WG formulation showed significantly higher phytotoxicity than the SC formulation. Residues in both the soil and leaves were significantly higher in the herbicide applied plots as compared to the control for both formulations. The SC formulation of sulfentrazone at a rate of 0.225 kg/ha was significantly less phytotoxic than the same rate of the WG formulation at 27 DAT. The SC formulation of sulfentrazone can replace the WG formulation for broad spectrum weed control in tobacco in Zimbabwe at a recommended rate of 0.225 kg/ha.
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Claims 5
Claim · model-written summary
Herbicide treatments caused greater tobacco phytotoxicity than the control.
- Taxon
- Tobacco
Nicotiana tabacumt0 - Treatment
- herbicidese0
- Outcome
- phytotoxicitye0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was significantly higher (P<0.05) phytotoxicity in all treatments where herbicides were applied compared to the control.”
t0“Tobacco (Nicotiana Tabacum L.)”
Claim · model-written summary
The WG formulation caused greater phytotoxicity than the SC formulation.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- WG formulatione0
- Outcome
- phytotoxicitye0
- Direction
- highere0
- Comparator
- SC formulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The WG formulation showed significantly higher phytotoxicity than the SC formulation.”
t0“Tobacco (Nicotiana Tabacum L.)”
Claim · model-written summary
Herbicide plots had higher soil residues than controls for both formulations.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- herbicide applied plotse0
- Outcome
- Residues in both the soil and leavese0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Residues in both the soil and leaves were significantly higher in the herbicide applied plots as compared to the control for both formulations.”
t0“Tobacco (Nicotiana Tabacum L.)”
Claim · model-written summary
At 0.225 kg/ha, SC was less phytotoxic than WG at 27 DAT.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- SC formulation of sulfentrazone at a rate of 0.225 kg/hae0
- Outcome
- phytotoxice0
- Direction
- lesse0
- Qualifier
- 27 DATe0
- Comparator
- WG formulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SC formulation of sulfentrazone at a rate of 0.225 kg/ha was significantly less phytotoxic than the same rate of the WG formulation at 27 DAT.”
t0“Tobacco (Nicotiana Tabacum L.)”
Claim · model-written summary
The authors recommend SC sulfentrazone at 0.225 kg/ha as a WG replacement for weed control in Zimbabwe tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- SC formulation of sulfentrazonee0
- Outcome
- can replace the WG formulation for broad spectrum weed controle0
- Value
- 0.225 kg/hae0
- Setting
- Zimbabwee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The SC formulation of sulfentrazone can replace the WG formulation for broad spectrum weed control in tobacco in Zimbabwe at a recommended rate of 0.225 kg/ha.”
The same questions in other papers
sulfentrazone · crop injury · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →herbicide · crop injury · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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.