Abstract
A field experiment was conducted during 2008–09 and 2010–11 to evaluate pre- and post-emergence herbicides alone or their integration on weed control in pigeonpea. Imazethapyr 75 g/ha applied at 20 days after sowing (DAS) significantly reduced the density anddry weight of both dicot and monocot weeds recorded at 30 DAS compared to weedy check followed by pendimethalin 0.75 kg/ha as pre-emergence. However, integration of paraquat 0.48 kg/ha with pendimethalin applied at 42 DAS caused significant reduction in the population as well as dry weight of the weeds at 50 and 70 DAS and was on par with hand weeding twice at 25 and 50 DAS. Higher weed control efficiency was also recorded with hand weeding twice (96.7%) followed by pendimethalin + paraquat at 42 DAS (78.3%). Uncontrolled weeds led to 79% loss in the seed yield of pigeonpea. Yet, application of pendimethalin followed by paraquat at 42 DAS registered higher seed yield (1304 kg/ha) which was at par with that in hand weeding twice at 25 and 50 DAS (1245 kg/ha). In addition, significantly more net return (27,035/ha) and benefit: cost ratio (3.28) were realized with the former treatment over the latter.
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Claims 8
Claim · model-written summary
Imazethapyr 75 g/ha applied at 20 DAS significantly reduced density and dry weight of dicot and monocot weeds at 30 DAS in pigeonpea compared with the weedy check.
- Taxon
- pigeonpea
Cajanus cajant0 - Treatment
- Imazethapyr 75 g/ha applied at 20 days after sowing (DAS)e1
- Interactor
- weedse1weed
- Outcome
- density anddry weight of both dicot and monocot weedse1
- Direction
- reducede1
- Comparator
- weedy checke1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeonpea”
e1“Imazethapyr 75 g/ha applied at 20 days after sowing (DAS) significantly reduced the density anddry weight of both dicot and monocot weeds recorded at 30 DAS compared to weedy check”
Claim · model-written summary
In pigeonpea, paraquat 0.48 kg/ha integrated with pendimethalin applied at 42 DAS significantly reduced weed population and dry weight at 50 and 70 DAS, on par with hand weeding twice at 25 and 50 DAS.
- Taxon
- pigeonpeaCajanus cajant0
- Treatment
- integration of paraquat 0.48 kg/ha with pendimethalin applied at 42 DASe1
- Interactor
- weedse1weed
- Outcome
- population as well as dry weight of the weedse1
- Direction
- reductione1
- Comparator
- hand weeding twice at 25 and 50 DASe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeonpea”
e1“integration of paraquat 0.48 kg/ha with pendimethalin applied at 42 DAS caused significant reduction in the population as well as dry weight of the weeds at 50 and 70 DAS and was on par with hand weeding twice at 25 and 50 DAS”
Claim · model-written summary
Hand weeding twice gave the higher weed control efficiency of 96.7% in pigeonpea.
- Taxon
- pigeonpeaCajanus cajant0
- Treatment
- hand weeding twicee1
- Outcome
- weed control efficiencye1
- Direction
- Highere1
- Value
- 96.7%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeonpea”
e1“Higher weed control efficiency was also recorded with hand weeding twice (96.7%)”
Claim · model-written summary
Pendimethalin + paraquat at 42 DAS gave a weed control efficiency of 78.3% in pigeonpea, second to hand weeding twice.
- Taxon
- pigeonpeaCajanus cajant0
- Treatment
- pendimethalin + paraquat at 42 DASe1
- Outcome
- weed control efficiencye1
- Direction
- Highere1
- Value
- 78.3%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeonpea”
e1“Higher weed control efficiency was also recorded with hand weeding twice (96.7%) followed by pendimethalin + paraquat at 42 DAS (78.3%)”
Claim · model-written summary
Uncontrolled weeds caused a 79% loss in pigeonpea seed yield.
- Taxon
- pigeonpeaCajanus cajane1
- Treatment
- Uncontrolled weedse1
- Interactor
- weedse1weed
- Outcome
- seed yielde1
- Direction
- losse1
- Value
- 79%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Uncontrolled weeds led to 79% loss in the seed yield of pigeonpea”
Claim · model-written summary
Pendimethalin followed by paraquat at 42 DAS gave a higher pigeonpea seed yield of 1304 kg/ha, at par with hand weeding twice at 25 and 50 DAS (1245 kg/ha).
- Taxon
- pigeonpeaCajanus cajant0
- Treatment
- pendimethalin followed by paraquat at 42 DASe1
- Outcome
- seed yielde1
- Direction
- highere1
- Value
- 1304 kg/hae1
- Qualifier
- 1245 kg/hae1
- Comparator
- hand weeding twice at 25 and 50 DASe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeonpea”
e1“application of pendimethalin followed by paraquat at 42 DAS registered higher seed yield (1304 kg/ha) which was at par with that in hand weeding twice at 25 and 50 DAS (1245 kg/ha)”
Claim · model-written summary
Pendimethalin followed by paraquat gave significantly more net return (27,035/ha) than hand weeding twice in pigeonpea.
- Taxon
- pigeonpeaCajanus cajant0
- Treatment
- pendimethalin followed by paraquat at 42 DASe0
- Outcome
- net returne1
- Direction
- moree1
- Value
- 27,035/hae1
- Comparator
- hand weeding twice at 25 and 50 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeonpea”
e0“pendimethalin followed by paraquat at 42 DAS registered higher seed yield (1304 kg/ha) which was at par with that in hand weeding twice at 25 and 50 DAS”
e1“significantly more net return (27,035/ha)”
Claim · model-written summary
Pendimethalin followed by paraquat gave a significantly higher benefit:cost ratio (3.28) than hand weeding twice in pigeonpea.
- Taxon
- pigeonpeaCajanus cajant0
- Treatment
- pendimethalin followed by paraquat at 42 DASe0
- Outcome
- benefit: cost ratioe1
- Direction
- moree1
- Value
- 3.28e1
- Comparator
- hand weeding twice at 25 and 50 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pigeonpea”
e0“pendimethalin followed by paraquat at 42 DAS registered higher seed yield (1304 kg/ha) which was at par with that in hand weeding twice at 25 and 50 DAS”
e1“significantly more net return (27,035/ha) and benefit: cost ratio (3.28) were realized with the former treatment over the latter”
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See all 28 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.