Abstract
Cowpea (Vigna unguiculata L. Walp.) production in Nigeria is limited mainly due to weed and insect infestations. The effects of insecticide spray regime and weed control on the productivity of cowpea were evaluated in the early and late seasons of 2020. Two insecticide sprays produced increased growth and yield in the late cropping season. However, in the early cropping season, optimum growth and yield of cowpea were obtained with four insecticide sprays. Regardless of the cropping season, preemergence (PRE) application of metolachlor or propaben plus manual weeding (MW) provided 71–80% reduction in weed density and biomass and resulted in cowpea growth and yields similar to the weed-free control. In the late season, two MWs resulted in cowpea growth and yield similar to the weed-free control. However, in the early season treatment, two MWs resulted in 51% lower yield than the weed-free control. The results showed that four insecticide sprays in the early cropping season or two insecticidal sprays in the late cropping season integrated with metolachlor or propaben application plus MW improved the productivity of cowpea.
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Claims 5
Claim · model-written summary
Two insecticide sprays increased cowpea growth and yield in the late cropping season.
- Taxon
- Cowpea
Vigna unguiculatae0 - Treatment
- Two insecticide sprayse1
- Outcome
- growth and yielde1
- Direction
- increasede1
- Setting
- late cropping seasone1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cowpea (Vigna unguiculata L. Walp.) production in Nigeria is limited mainly due to weed and insect infestations”
e1“Two insecticide sprays produced increased growth and yield in the late cropping season”
Claim · model-written summary
Four insecticide sprays gave optimum cowpea growth and yield in the early cropping season.
- Taxon
- cowpeaVigna unguiculatae2
- Treatment
- four insecticide sprayse2
- Outcome
- optimum growth and yielde2
- Direction
- optimume2
- Setting
- early cropping seasone2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“However, in the early cropping season, optimum growth and yield of cowpea were obtained with four insecticide sprays”
Claim · model-written summary
Preemergence application of metolachlor or propaben plus manual weeding gave a 71–80% reduction in weed density and biomass in cowpea.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- preemergence (PRE) application of metolachlor or propaben plus manual weeding (MW)e3
- Interactor
- weede0weed
- Outcome
- weed density and biomasse3
- Direction
- reductione3
- Value
- 71–80%e3
- Setting
- cropping seasone3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cowpea (Vigna unguiculata L. Walp.) production in Nigeria is limited mainly due to weed and insect infestations”
e3“Regardless of the cropping season, preemergence (PRE) application of metolachlor or propaben plus manual weeding (MW) provided 71–80% reduction in weed density and biomass and resulted in cowpea growth and yields similar to the weed-free control”
Claim · model-written summary
Two manual weedings gave cowpea growth and yield similar to the weed-free control in the late season.
- Taxon
- cowpeaVigna unguiculatae4
- Treatment
- two MWse4
- Outcome
- growth and yielde4
- Direction
- similare4
- Comparator
- weed-free controle4
- Setting
- late seasone4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“In the late season, two MWs resulted in cowpea growth and yield similar to the weed-free control”
Claim · model-written summary
Two manual weedings resulted in 51% lower cowpea yield than the weed-free control in the early season.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- two MWse5
- Outcome
- yielde5
- Direction
- lowere5
- Value
- 51%e5
- Comparator
- weed-free controle5
- Setting
- early seasone5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cowpea (Vigna unguiculata L. Walp.) production in Nigeria is limited mainly due to weed and insect infestations”
e5“However, in the early season treatment, two MWs resulted in 51% lower yield than the weed-free control”
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