Application time affects synthetic auxins herbicides in tank-mixture with paraquat on hairy fleabane control

The harvest of winter crops prior to sowing of soybean is associated with the cutting of plants, which reduces leaf area and stimulates sprouting thereby generating new stems. [...]the control efficacy may be decreased. Farmers generally use the tank-mixture herbicide method to improve the weed cont...

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Bibliographic Details
Published in:Revista Ceres 2021-06, Vol.68 (3), p.194-200
Main Authors: Silva, Diecson Ruy Orsolin da, Aguiar, Adalin Cezar Moraes de, Basso, Claudir José, Muraro, Dionei Schmidt
Format: Article
Language:English
Subjects:
2,4-D
AGRICULTURE, MULTIDISCIPLINARY
Auxins
Conyza bonariensis
dicamba
Efficiency
Experiments
Herbicides
Homogeneity
Humidity
Leaf area
morning application
night application
Paraquat
Planting
Regrowth
sequential
Soybeans
Time of use
Variance analysis
Weed control
Weeds
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Summary:The harvest of winter crops prior to sowing of soybean is associated with the cutting of plants, which reduces leaf area and stimulates sprouting thereby generating new stems. [...]the control efficacy may be decreased. Farmers generally use the tank-mixture herbicide method to improve the weed control, targeting weeds which may be tolerant or less susceptible to a single active ingredient (Lagator et al., 2013). [...]there is no information on the specific effects of tank-mix herbicides synthetic auxin and paraquat, and additional information is required regarding burndown management. [...]the objective of this study was to evaluate the effect of synthetic auxins, applied alone, in tank-mixes, or in sequencial with paraquat at differents growth stages of hairy fleabane and time of day. The visual evaluations of control and regrowth of hairy fleabane data were transformed, but did not improve the homogeneity of variance and data normality. [...]nontransformed were submitted analysis of variance (ANOVA) using the F test (p < 0.05).
ISSN:0034-737X
2177-3491
2177-3491
DOI:10.1590/0034-737x202168030005