Abstract
The objective was to evaluate the efficacy of pre-emergence herbicides mixture applied to the soil with and without dead cover crops (Sorghum bicolor) for the control of Amaranthus hybridus L. (smooth pigweed) and its selectivity in soybeans. This study was structured in split plot (2 × 6 + 2), where factor A plots (with and without dead cover) and factor B six herbicides mixture: flumioxazin + S-metolachlor (50.4 + 1,008 g a.i. ha−1), flumioxazin + imazethapyr (60 + 127.2 g a.i. ha−1), pyroxasulfone + sulfentrazone (137.6 + 160 g a.i. ha−1), diuron + sulfentrazone (400 + 200 g a.i. ha−1), metribuzin + S-metolachlor (326.4 + 1,344 g a.i. ha−1) and sulfentrazone + imazethapyr (200 + 100 g a.i. ha−1) and two untreated control plots. As for the results, the herbicides flumioxazin + S-metolachlor, flumioxazin + imazethapyr and pyroxasulfone + sulfentrazone showed excellent control (97–99%) and were not influenced by the plot with and without dead cover. They also showed higher yield soybeans (<2,244 kg ha−1). All herbicides were selective to the soybeans. Overall, pre-emergence herbicides and cover crops were efficient methods for the control of A. hybridus, which farmers should use to avoid losses in yield soybeans due to weed competition.
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Claims 6
Claim · model-written summary
flumioxazin + S-metolachlor achieved 97–99% smooth pigweed control regardless of dead cover.
- Taxon
- soybeans
Glycine maxt0 - Treatment
- flumioxazin + S-metolachlore0
- Interactor
- Amaranthus hybridus
Amaranthus hybridust0weed - Outcome
- controle0
- Direction
- excellente0
- Value
- 97–99%e0
- Comparator
- with and without dead covere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the herbicides flumioxazin + S-metolachlor, flumioxazin + imazethapyr and pyroxasulfone + sulfentrazone showed excellent control (97–99%) and were not influenced by the plot with and without dead cover”
t0“soybeans:Amaranthus hybriduscontrol”
Claim · model-written summary
flumioxazin + imazethapyr achieved 97–99% smooth pigweed control regardless of dead cover.
- Taxon
- soybeansGlycine maxt0
- Treatment
- flumioxazin + imazethapyre0
- Interactor
- Amaranthus hybridusAmaranthus hybridust0weed
- Outcome
- controle0
- Direction
- excellente0
- Value
- 97–99%e0
- Comparator
- with and without dead covere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the herbicides flumioxazin + S-metolachlor, flumioxazin + imazethapyr and pyroxasulfone + sulfentrazone showed excellent control (97–99%) and were not influenced by the plot with and without dead cover”
t0“soybeans:Amaranthus hybriduscontrol”
Claim · model-written summary
pyroxasulfone + sulfentrazone achieved 97–99% smooth pigweed control regardless of dead cover.
- Taxon
- soybeansGlycine maxt0
- Treatment
- pyroxasulfone + sulfentrazonee0
- Interactor
- Amaranthus hybridusAmaranthus hybridust0weed
- Outcome
- controle0
- Direction
- excellente0
- Value
- 97–99%e0
- Comparator
- with and without dead covere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the herbicides flumioxazin + S-metolachlor, flumioxazin + imazethapyr and pyroxasulfone + sulfentrazone showed excellent control (97–99%) and were not influenced by the plot with and without dead cover”
t0“soybeans:Amaranthus hybriduscontrol”
Claim · model-written summary
The three leading herbicide mixtures gave higher soybean yield.
- Taxon
- soybeansGlycine maxe0
- Treatment
- Theye0
- Outcome
- yield soybeanse0
- Direction
- highere0
- Value
- <2,244 kg ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“They also showed higher yield soybeans (<2,244 kg ha−1)”
Claim · model-written summary
All herbicides were selective to soybeans.
- Taxon
- soybeansGlycine maxe0
- Outcome
- selective to the soybeanse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All herbicides were selective to the soybeans”
Claim · model-written summary
The authors recommend pre-emergence herbicides and cover crops to avoid soybean yield loss from weed competition.
- Taxon
- soybeansGlycine maxe0
- Interactor
- A. hybridusAmaranthus hybriduse0weed
- Outcome
- farmers should use to avoid losses in yield soybeans due to weed competitione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pre-emergence herbicides and cover crops were efficient methods for the control of A. hybridus, which farmers should use to avoid losses in yield soybeans due to weed competition”
The same questions in other papers
Imazethapyr · Amaranthus hybridus · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- 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.