Abstract
Cowpea is an important grain legume in Sri Lanka. Approximately 53–60% of yield losses in cowpea cultivation are attributed to weeds. Chemical weed control (herbicide), is one of the method in weed control in cowpea. Import of herbicide have been prohibited recently since of government policy and the nation's economic problems. As a result, it's critical to identify other suitable alternatives. In this context, a field experiment was conducted to study the effect of aqueous extract of wild sunflower and sorghum on weed control, growth and yield of cowpea. The experiment consisting of five weed control treatments viz T1 (aqueous extract of wild sunflower; 12 L ha-1 ,T2 (aqueous extract of sorghum; 12 L ha-1), T3 (combined application of both wild sunflower and sorghum aqueous extract in a 1:1 ratio; 6+6 L ha-1), T4 (hand weeding), and T5 (unweeded check-control) was conducted in Randomized Complete Block Design with four replication in the crop farm of Eastern University, Sri Lanka.. The experiment was conducted from September to November 2022. Hand weeding was done on 21 and 42 DAS while application of aqueous extracts were done on 2, 21, and 35 DAS. Minitab 17 software was used for the statistical analysis, and Tukey's test was used to compare the treatment means. The results revealed that the different weed control treatments had a substantial (P<0.05) impact on weed population & dry weight, growth and yield of cowpea. When compared to the control, hand weeding was found to be most effective to control weeds followed by combined application of aqueous extracts from wild sunflower and sorghum Hand weeding and the combined application of aqueous extracts significantly reduced the number of weeds by 82.98 and 54.39%, respectively. Further, the hand weeding and combined application of extract significantly enhanced yield by 45.09% and 62.85% respectively in comparison to the control (unweeded check). According to the study's findings, it can be concluded that under the condition of Sri Lanka, combined application of aqueous extracts was proved to be more remunerative and sustainable alternate option for weed control in cowpea crop.
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Claims 8
Claim · model-written summary
Weed-control treatments substantially affected weed population, weed dry weight, cowpea growth and yield.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)
Vigna unguiculatat0 - Outcome
- weed population & dry weight, growth and yield of cowpeae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“different weed control treatments had a substantial (P<0.05) impact on weed population & dry weight, growth and yield of cowpea”
Claim · model-written summary
Hand weeding was most effective for weed control relative to the unweeded control.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)Vigna unguiculatat0
- Treatment
- hand weedinge0
- Outcome
- control weedse0
- Direction
- most effectivee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“When compared to the control, hand weeding was found to be most effective to control weeds”
Claim · model-written summary
Combined wild sunflower and sorghum extracts ranked after hand weeding for weed control.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)Vigna unguiculatat0
- Outcome
- followed by combined application of aqueous extracts from wild sunflower and sorghume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“followed by combined application of aqueous extracts from wild sunflower and sorghum”
Claim · model-written summary
Hand weeding reduced weed number by 82.98%.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)Vigna unguiculatat0
- Treatment
- Hand weedinge0
- Outcome
- number of weedse0
- Direction
- reducede0
- Value
- 82.98e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“Hand weeding and the combined application of aqueous extracts significantly reduced the number of weeds by 82.98 and 54.39%, respectively”
Claim · model-written summary
Combined aqueous extracts reduced weed number by 54.39%.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)Vigna unguiculatat0
- Treatment
- combined application of aqueous extractse0
- Outcome
- number of weedse0
- Direction
- reducede0
- Value
- 54.39%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“Hand weeding and the combined application of aqueous extracts significantly reduced the number of weeds by 82.98 and 54.39%, respectively”
Claim · model-written summary
Hand weeding increased cowpea yield by 45.09% over the unweeded check.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)Vigna unguiculatat0
- Treatment
- hand weedinge0
- Outcome
- yielde0
- Direction
- enhancede0
- Value
- 45.09%e0
- Comparator
- control (unweeded check)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“hand weeding and combined application of extract significantly enhanced yield by 45.09% and 62.85% respectively in comparison to the control (unweeded check)”
Claim · model-written summary
Combined extracts increased cowpea yield by 62.85% over the unweeded check.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)Vigna unguiculatat0
- Treatment
- combined application of extracte0
- Outcome
- yielde0
- Direction
- enhancede0
- Value
- 62.85%e0
- Comparator
- control (unweeded check)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“hand weeding and combined application of extract significantly enhanced yield by 45.09% and 62.85% respectively in comparison to the control (unweeded check)”
Claim · model-written summary
The authors recommend combined aqueous extracts as a remunerative and sustainable cowpea weed-control option in Sri Lanka.
- Taxon
- Cowpea (Vigna unguiculata (L.) Walp)Vigna unguiculatat0
- Outcome
- combined application of aqueous extractse0
- Setting
- Sri Lankae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cowpea (Vigna unguiculata (L.) Walp)”
e0“under the condition of Sri Lanka, combined application of aqueous extracts was proved to be more remunerative and sustainable alternate option for weed control in cowpea crop”
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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.