Abstract
Field experiments were conducted in rainfed alfisol at Dryland Agricultural Research Station Experimental Farm, Chettinad during Kharif 2013 and 2014 season, to find out the effect of different weed management practices in machine sown pigeon pea (var. VBN 2) under dry land conditions. The experiment consisted of following treatments viz., power weeder weeding once at 20 DAS, power weeder weeding twice at 20 and 40 DAS, power weeder weeding once at 20 DAS + one hand weeding, power weeder weeding twice (20 DAS and 40 DAS) + one hand weeding, mulching with cumbu napier trash @ 5 t/ha, imazethapyr @ 50 g a.i ha-1 and quizalofop ethyl @ 50 g a.i ha-1 at 15 DAS, hand weeding at 20 and 40 DAS and these treatments were compared with unweeded control. The trial was laid out in randomized block design with three replications. The results revealed that power weeder weeding twice at 20 and 40 DAS in integration with one hand weeding effectively controlled all kinds of weed flora which were present in both inter and intra row spacing which reflected in higher mean grain yield of 922 kg ha-1 which might be due to better weed control as reflected in lower weed density (12.1), weed dry weight (14.5) and higher weed control efficiency (WCE) of 79.5 per cent. Early post emergence application of imazethapyr @ 50 g a.i ha-1 at 15 DAS had effectively controlled broad leaved weeds and sedges whereas, quizalofop ethyl @ 50 g a.i ha-1 at 15 DAS was effective against grasses.
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Claims 7
Claim · model-written summary
Twice using a power weeder plus hand weeding controlled interrow and intrarow weed flora.
- Taxon
- pigeon pea
Cajanus cajane1 - Material
- VBN 2e1
- Treatment
- power weeder weeding twice at 20 and 40 DAS in integration with one hand weedinge0
- Interactor
- weed florae0weed
- Outcome
- weed florae0
- Direction
- controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“power weeder weeding twice at 20 and 40 DAS in integration with one hand weeding effectively controlled all kinds of weed flora which were present in both inter and intra row spacing”
e1“machine sown pigeon pea (var. VBN 2)”
Claim · model-written summary
Integrated power and hand weeding produced higher mean grain yield of 922 kg ha-1.
- Taxon
- pigeon peaCajanus cajane1
- Treatment
- power weeder weeding twice at 20 and 40 DAS in integration with one hand weedinge0
- Outcome
- mean grain yielde0
- Direction
- highere0
- Value
- 922 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“power weeder weeding twice at 20 and 40 DAS in integration with one hand weeding effectively controlled all kinds of weed flora which were present in both inter and intra row spacing which reflected in higher mean grain yield of 922 kg ha-1”
e1“machine sown pigeon pea (var. VBN 2)”
Claim · model-written summary
Integrated power and hand weeding yielded lower weed density of 12.1.
- Taxon
- pigeon peaCajanus cajane2
- Treatment
- power weeder weeding twice at 20 and 40 DAS in integration with one hand weedinge1
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- lowere0
- Value
- 12.1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower weed density (12.1)”
e1“power weeder weeding twice at 20 and 40 DAS in integration with one hand weeding”
e2“machine sown pigeon pea (var. VBN 2)”
Claim · model-written summary
Integrated power and hand weeding yielded lower weed dry weight of 14.5.
- Taxon
- pigeon peaCajanus cajane3
- Treatment
- power weeder weeding twice at 20 and 40 DAS in integration with one hand weedinge2
- Interactor
- weede0weed
- Outcome
- weed dry weighte0
- Direction
- lowere1
- Value
- 14.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weed dry weight (14.5)”
e1“lower weed density (12.1), weed dry weight (14.5)”
e2“power weeder weeding twice at 20 and 40 DAS in integration with one hand weeding”
e3“machine sown pigeon pea (var. VBN 2)”
Claim · model-written summary
Integrated power and hand weeding produced weed control efficiency of 79.5 per cent.
- Taxon
- pigeon peaCajanus cajane2
- Treatment
- power weeder weeding twice at 20 and 40 DAS in integration with one hand weedinge1
- Interactor
- weede0weed
- Outcome
- weed control efficiencye0
- Direction
- highere0
- Value
- 79.5 per cente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher weed control efficiency (WCE) of 79.5 per cent”
e1“power weeder weeding twice at 20 and 40 DAS in integration with one hand weeding”
e2“machine sown pigeon pea (var. VBN 2)”
Claim · model-written summary
Imazethapyr effectively controlled broad-leaved weeds and sedges.
- Taxon
- pigeon peaCajanus cajane1
- Treatment
- imazethapyr @ 50 g a.i ha-1 at 15 DASe0
- Interactor
- broad leaved weeds and sedgese0weed
- Outcome
- broad leaved weeds and sedgese0
- Direction
- controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early post emergence application of imazethapyr @ 50 g a.i ha-1 at 15 DAS had effectively controlled broad leaved weeds and sedges”
e1“machine sown pigeon pea (var. VBN 2)”
Claim · model-written summary
Quizalofop ethyl was effective against grasses.
- Taxon
- pigeon peaCajanus cajane1
- Treatment
- quizalofop ethyl @ 50 g a.i ha-1 at 15 DASe0
- Interactor
- grassese0weed
- Outcome
- effective against grassese0
- Direction
- effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quizalofop ethyl @ 50 g a.i ha-1 at 15 DAS was effective against grasses”
e1“machine sown pigeon pea (var. VBN 2)”
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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.