Abstract
Cultivation of the cowpea is important in various regions of Brazil, but competition from weeds is one of the factors which limit productivity. The aim of this study therefore was to evaluate the pre-plant selectivity and efficiency of different herbicides, and combinations of herbicides, in the cowpea [Vigna unguiculata (L.) Walp.]. An experiment was carried out in a randomised block design, in lots split over time and with three replications, using a 4 x 7 factorial scheme, where the treatments consisted of: glyphosate, glyphosate + imazethapyr, glyphosate + flumioxazin, glyphosate + imazethapyr + flumioxazin, glyphosate + ready mix (imazethapyr & flumioxazin), and two control treatments (one with no weeding and one with manual weeding). The treatments were evaluated in combination with four different sowing times, i.e. immediately after application of the herbicides, and at five, ten and fifteen days after application (DAA). The combination of glyphosate + flumioxazin at 15 DAA, gave the highest mean productivity, 1,105.32 kg ha-1, followed by manual weeding with 1,027.37 kg ha-1. The herbicide mixtures of glyphosate + imazethapyr + flumioxazin caused phyto-toxicity in the cowpea crop, limiting the production components. The best strategies for weed control in this crop are manual weeding with seeding at 10 DAA, as well as the application of a glyphosate + flumioxazin mixture with seeding at 15 DAA.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Glyphosate plus flumioxazin with sowing at 15 days after application gave the highest productivity, 1,105.32 kg ha-1.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- glyphosate + flumioxazin at 15 DAAe0
- Outcome
- mean productivitye0
- Direction
- higheste0
- Value
- 1,105.32 kg ha-1e0
- Comparator
- manual weedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of glyphosate + flumioxazin at 15 DAA, gave the highest mean productivity, 1,105.32 kg ha-1, followed by manual weeding with 1,027.37 kg ha-1.”
t0“cowpea”
Claim · model-written summary
Manual weeding produced 1,027.37 kg ha-1, below the leading herbicide strategy.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- manual weedinge0
- Outcome
- mean productivitye0
- Direction
- followed bye0
- Value
- 1,027.37 kg ha-1e0
- Comparator
- glyphosate + flumioxazin at 15 DAAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of glyphosate + flumioxazin at 15 DAA, gave the highest mean productivity, 1,105.32 kg ha-1, followed by manual weeding with 1,027.37 kg ha-1.”
t0“cowpea”
Claim · model-written summary
Glyphosate, imazethapyr and flumioxazin mixture caused cowpea phytotoxicity that limited production components.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- glyphosate + imazethapyr + flumioxazine0
- Outcome
- phyto-toxicity in the cowpea crope0
- Direction
- limitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The herbicide mixtures of glyphosate + imazethapyr + flumioxazin caused phyto-toxicity in the cowpea crop, limiting the production components.”
Claim · model-written summary
The authors recommend manual weeding with seeding at 10 DAA.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- manual weeding with seeding at 10 DAAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best strategies for weed control in this crop are manual weeding with seeding at 10 DAA, as well as the application of a glyphosate + flumioxazin mixture with seeding at 15 DAA.”
t0“cowpea”
Claim · model-written summary
The authors recommend glyphosate plus flumioxazin with seeding at 15 DAA.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- application of a glyphosate + flumioxazin mixture with seeding at 15 DAAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best strategies for weed control in this crop are manual weeding with seeding at 10 DAA, as well as the application of a glyphosate + flumioxazin mixture with seeding at 15 DAA.”
t0“cowpea”
The same questions in other papers
glyphosate · yield · Vigna unguiculata (cowpea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
flumioxazin · yield · Vigna unguiculata (cowpea)Results agree
1 paper in the same direction as this paper
- positive
herbicide · yield · Vigna unguiculata (cowpea)Positive and negative results
44 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- negative
49 papers more in this group
See all 53 papers →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.