Paper · 2009 · Journal of plant protection sciences

Efficacy of low dose of herbicides against weeds in transplanted kharif rice (Oryza sativa L.).

Suprakash Pal; Hirak Banerjee; Nilanjan Mandal

9
claims
13
verbatim quotes
11
citations
2
research areas
—
Not open access

Abstract

Comparative efficacy of penoxsulum 24 SC against weeds in transplanted kharif rice was studied at Regional Research Sub-Station (New Alluvial Zone), Bidhan Chandra Krishi Viswavidyalaya, Chakdaha, Nadia, West Bengal. The experiment was laid out in a randomized block design with 7 treatments and 3 replications. The results revealed that the major weed flora associated with the transplanted rice during kharif season was mainly comprised of Echinochloa colona (30 %), Cyperus difformis (20 %), Monochoria vaginalis (30 %) and Ludwigia parviflora (20 %). Penoxsulam 24 SC at 0.0225 kg a.i. ha-1 applied at 8-12 days after transplanting was most effective to check all types of weed population and their growth. This treatment also gave the maximum grain yield (3.53 tha-1) and straw yield (4.73 tha-1) of rice resulting in lowest weed index (5.61 %). Therefore, penoxsulam 24 SC at 0.0225 kg a.i. ha-1 applied at 8-12 days after transplanting may be recommended to replace the tedious, time consuming and expensive hand weeding practice of weed control in transplanted kharif rice.

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Claims 9

Observationobservedoriginal resultmeasured

Claim · model-written summary

Echinochloa colona accounted for 30% of the major weed flora in transplanted rice.

Taxon
Oryza sativa L.Oryza sativat0
Interactor
Echinochloa colonaEchinochloa colonae0weed
Outcome
Echinochloa colonae0
Value
30 %e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Echinochloa colona
Echinochloa colona · InteractorTauʻolunga · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Echinochloa colona (30 %)”

✓ located verbatim in the source · abstract, characters 442–467 · show in text ↑
t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cyperus difformis accounted for 20% of the major weed flora in transplanted rice.

Taxon
Oryza sativa L.Oryza sativat0
Interactor
Cyperus difformisCyperus difformise0weed
Outcome
Cyperus difformise0
Value
20 %e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Cyperus difformis
Cyperus difformis · InteractorMargaretRDonald · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Cyperus difformis (20 %)”

✓ located verbatim in the source · abstract, characters 469–493 · show in text ↑
t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Monochoria vaginalis accounted for 30% of the major weed flora in transplanted rice.

Taxon
Oryza sativa L.Oryza sativat0
Interactor
Monochoria vaginalise0weed
Outcome
Monochoria vaginalise0
Value
30 %e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Monochoria vaginalis (30 %)”

✓ located verbatim in the source · abstract, characters 495–522 · show in text ↑
t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Ludwigia parviflora accounted for 20% of the major weed flora in transplanted rice.

Taxon
Oryza sativa L.Oryza sativat0
Interactor
Ludwigia parviflorae0weed
Outcome
Ludwigia parviflorae0
Value
20 %e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Ludwigia parviflora (20 %)”

✓ located verbatim in the source · abstract, characters 527–553 · show in text ↑
t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 72–94 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam at 0.0225 kg active ingredient per hectare at 8–12 days after transplanting was most effective against weed populations and growth.

Treatment
Penoxsulam 24 SC at 0.0225 kg a.i. ha-1 applied at 8-12 days after transplantinge0
Outcome
weed population and their growthe0
Direction
most effective to checke0

Not reportedTaxonComparator

Verbatim

e0

“Penoxsulam 24 SC at 0.0225 kg a.i. ha-1 applied at 8-12 days after transplanting was most effective to check all types of weed population and their growth.”

✓ located verbatim in the source · abstract, characters 555–710 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The penoxsulam treatment gave maximum rice grain yield of 3.53 tha-1.

Outcome
grain yielde0
Direction
maximume0
Value
3.53 tha-1e0

Not reportedTaxon

Verbatim

e0

“This treatment also gave the maximum grain yield (3.53 tha-1)”

✓ located verbatim in the source · abstract, characters 711–772 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The penoxsulam treatment gave maximum rice straw yield of 4.73 tha-1.

Outcome
straw yielde0
Value
4.73 tha-1e0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“straw yield (4.73 tha-1) of rice”

✓ located verbatim in the source · abstract, characters 777–809 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The penoxsulam treatment gave the lowest weed index, 5.61%.

Outcome
weed indexe0
Direction
loweste0
Value
5.61 %e0

Not reportedTaxon

Verbatim

e0

“resulting in lowest weed index (5.61 %)”

✓ located verbatim in the source · abstract, characters 810–849 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend penoxsulam at 0.0225 kg active ingredient per hectare 8–12 days after transplanting instead of hand weeding.

Treatment
penoxsulam 24 SC at 0.0225 kg a.i. ha-1 applied at 8-12 days after transplantinge0
Outcome
replace the tedious, time consuming and expensive hand weeding practice of weed controle0
Comparator
hand weedinge0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“penoxsulam 24 SC at 0.0225 kg a.i. ha-1 applied at 8-12 days after transplanting may be recommended to replace the tedious, time consuming and expensive hand weeding practice of weed control in transplanted kharif rice.”

✓ located verbatim in the source · abstract, characters 862–1081 · show in text ↑

Penoxsulam · weed · Oryza sativa (rice)Positive and negative results

80 papers: 78 positive, 2 negative or no effect

77 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. positive

76 papers more in this group

See all 80 papers →

transplanting · weed · Oryza sativa (rice)Positive and negative results

146 papers: 129 positive, 17 negative or no effect

128 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

142 papers more in this group

See all 146 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.