Abstract
The use of herbicides for weed desiccation is what enables the no-tillage system, which increasingly stimulates the growth of the agrochemical market, in particular the class of herbicides. This study aimed to assess 2,4-dichlorophenoxyacetic acid and Glyphosate (N-phosphonomethyl-glycine) herbicides mixture persistence in soybeans of Ultisol in the Brazilian Cerrado. The study was conducted in a greenhouse with a randomized blocks design, in a factorial 6×5, being six application times (0, 3, 5, 7, 10 and 14 days before sowing) and five herbicide doses (0, 750, 1500, 2250 and 3000 g a.e. ha-1) in four replications. Herbicides were sprayed with a manual knapsack sprayer. The residual effect was assessed through emergence speed index (ESI), plant height and dry weight of shoots (DWS) and roots (DWR). The residual effect of mixtures of herbicides 2,4-D and Glyphosate on soybean in a Brazilian Cerrado Ultisol showed greater damage to plants when applied at sowing. The doses 2250 and 3000 g a.e. ha-1 were the most severe for the development of soybean plants. Key words: Bioindicator, Glycine max, Herbicide, Persistence.
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Claims 2
Claim · model-written summary
The herbicide mixture caused greater soybean damage when applied at sowing.
- Taxon
- soybean
Glycine maxe0 - Treatment
- mixtures of herbicides 2,4-D and Glyphosatee0
- Outcome
- damage to plantse0
- Direction
- greatere0
- Qualifier
- when applied at sowinge0
- Setting
- Brazilian Cerrado Ultisole0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The residual effect of mixtures of herbicides 2,4-D and Glyphosate on soybean in a Brazilian Cerrado Ultisol showed greater damage to plants when applied at sowing”
Claim · model-written summary
The 2250 and 3000 g a.e. ha-1 doses were most severe for soybean development.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 2250 and 3000 g a.e. ha-1e0
- Outcome
- development of soybean plantse0
- Direction
- most severee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The doses 2250 and 3000 g a.e. ha-1 were the most severe for the development of soybean plants”
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