Abstract
Cowpea suffers badly due to weed invasion which cause wide range of yield reduction. Therefore, an experiment was planned to determine the effect of different pre- and post-emergence herbicides, stale seedbed techniques and hand weeding in cowpea (Vigna unguiculata L.) during summer season of 2019 and 2020. The average yield losses due to crop-weed competition in cowpea was estimated by 71.32%. The relative density of monocot, dicot and sedges observed in weedy plot were 55.1, 34.3 and 10.6 no./m2, respectively. Plant height, branches/plant, pods/plant and seeds/pod were significantly higher under application of pendimethalin 30 EC 750 g/ha fb HW at 30 DAS, being at par with weed free (HW at 20 and 40 DAS) and pendimethalin 30 EC 750 g/ha fb imazethapyr 10 SL 60 g/ha at 30 DAS. This subsequently produced higher seed (1.37 t/ha) and stover yield (2.07 t/ha) and net return ( 65799/ha) of cowpea. Considering the labour shortage conditions and econiomics, pendimethalin 30 EC 750 g/ha PE fb imazethapyr 10 SL 60 g/ha at 30 DAS ( 64627/ha) was endorsed for weed management to produce comparable cowpea yield with highest B: C ratio (3.17).
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Claims 11
Claim · model-written summary
Crop weed competition caused an estimated 71.32% loss of cowpea yield.
- Taxon
- cowpea
Vigna unguiculatae0 - Interactor
- weede0weed
- Outcome
- yield lossese0
- Direction
- lossese0
- Value
- 71.32%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“average yield losses due to crop-weed competition in cowpea was estimated by 71.32%”
Claim · model-written summary
Monocot weeds had a density of 55.1 no./m2 in the weedy plot.
Not reportedTaxon
Verbatim
e0“relative density of monocot, dicot and sedges observed in weedy plot were 55.1, 34.3 and 10.6 no./m2, respectively”
Claim · model-written summary
Dicot weeds had a density of 34.3 no./m2 in the weedy plot.
Not reportedTaxon
Verbatim
e0“relative density of monocot, dicot and sedges observed in weedy plot were 55.1, 34.3 and 10.6 no./m2, respectively”
Claim · model-written summary
Sedge weeds had a density of 10.6 no./m2 in the weedy plot.
Not reportedTaxon
Verbatim
e0“relative density of monocot, dicot and sedges observed in weedy plot were 55.1, 34.3 and 10.6 no./m2, respectively”
Claim · model-written summary
Pendimethalin followed by hand weeding significantly increased cowpea height, branches, pods and seeds per pod; it was at par with two other weed management regimes.
- Treatment
- pendimethalin 30 EC 750 g/ha fb HW at 30 DASe0
- Outcome
- Plant height, branches/plant, pods/plant and seeds/pode0
- Direction
- highere0
- Comparator
- weed free (HW at 20 and 40 DAS)e0
Not reportedTaxon
Verbatim
e0“Plant height, branches/plant, pods/plant and seeds/pod were significantly higher under application of pendimethalin 30 EC 750 g/ha fb HW at 30 DAS, being at par with weed free (HW at 20 and 40 DAS) and pendimethalin 30 EC 750 g/ha fb imazethapyr 10 SL 60 g/ha at 30 DAS”
Claim · model-written summary
This treatment yielded 1.37 t/ha cowpea seed.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- seede0
- Direction
- highere0
- Value
- 1.37 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher seed (1.37 t/ha) and stover yield (2.07 t/ha) and net return ( 65799/ha) of cowpea”
Claim · model-written summary
This treatment yielded 2.07 t/ha cowpea stover.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- stover yielde0
- Direction
- highere0
- Value
- 2.07 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher seed (1.37 t/ha) and stover yield (2.07 t/ha) and net return ( 65799/ha) of cowpea”
Claim · model-written summary
This treatment returned 65799/ha net from cowpea.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- net returne0
- Value
- 65799/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“net return ( 65799/ha) of cowpea”
Claim · model-written summary
The authors endorsed pendimethalin followed by imazethapyr for cowpea weed management given labour shortage and economics.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- pendimethalin 30 EC 750 g/ha PE fb imazethapyr 10 SL 60 g/ha at 30 DASe0
- Outcome
- weed managemente0
- Qualifier
- labour shortage conditions and econiomicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considering the labour shortage conditions and econiomics, pendimethalin 30 EC 750 g/ha PE fb imazethapyr 10 SL 60 g/ha at 30 DAS ( 64627/ha) was endorsed for weed management to produce comparable cowpea yield with highest B: C ratio (3.17)”
Claim · model-written summary
The endorsed treatment had a net return of 64627/ha.
Not reportedTaxon
Verbatim
e0“imazethapyr 10 SL 60 g/ha at 30 DAS ( 64627/ha) was endorsed for weed management”
Claim · model-written summary
The endorsed treatment produced a comparable cowpea yield and the highest benefit cost ratio of 3.17.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- B: C ratioe0
- Direction
- higheste0
- Value
- 3.17e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“produce comparable cowpea yield with highest B: C ratio (3.17)”
The same questions in other papers
pendimethalin · growth · Vigna unguiculata (cowpea)Results agree
5 papers in the same direction as this paper
- positive
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2 papers more in this group
See all 6 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.