Paper · 1999 · Indian Journal of Weed Science

Efficacy of Herbicides Applied Alone and in Combinations against Weeds in Transplanted Rice

D. P. Nandal; Hari Om; S. D. Dhiman

9
claims
18
verbatim quotes
3
citations
2
research areas
—
Not open access

Abstract

A field experiment carried out during kharif 1994 and 1995 revealed that the average reduction in grain yield was 43.2% in unweeded check as compared to weed free treatment. Weed free treatment recorded the highest grain yield (48.8 q/ha) which was at par with hand weeding twice (42.0 and 46.7 q/ha during 1994 and 1995, respectively). Hand weeding twice and anilofos+2,4-D readymix (0.40+0.53 kg/ha) were equally good with regard to grain yield, yield attributes, reduction in weed population and dry weight during both the years. Hand weeding twice at 20 and 40 days was also found statistically similar to anilofos 0.40 kg, butachlor 1.5 kg and pretilachlo; 0.75 kg/ha during 1994 in increasing yield and decreasing weed dry weight.

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Claims 9

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Average grain yield reduction was 43.2% in the unweeded check compared with the weed-free treatment in transplanted rice.

Treatment
unweeded checke0
Interactor
Weedst0weed
Outcome
grain yielde0
Direction
reductione0
Value
43.2%e0
Comparator
weed free treatmente0

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

“the average reduction in grain yield was 43.2% in unweeded check as compared to weed free treatment”

✓ located verbatim in the source · abstract, characters 73–172 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The weed-free treatment recorded the highest rice grain yield (48.8 q/ha).

Treatment
Weed free treatmente1
Interactor
Weedst0weed
Outcome
grain yielde1
Direction
higheste1
Value
48.8 q/hae1

Not reportedComparator

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

e1

“Weed free treatment recorded the highest grain yield (48.8 q/ha)”

✓ located verbatim in the source · abstract, characters 174–238 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Hand weeding twice was at par with the weed-free treatment for grain yield in 1994 (42.0 q/ha).

Treatment
hand weeding twicee2
Interactor
Weedst0weed
Outcome
grain yielde2
Direction
at pare2
Value
42.0e2
Qualifier
during 1994e2
Comparator
Weed free treatmente2

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

e2

“Weed free treatment recorded the highest grain yield (48.8 q/ha) which was at par with hand weeding twice (42.0 and 46.7 q/ha during 1994 and 1995, respectively)”

✓ located verbatim in the source · abstract, characters 174–335 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Hand weeding twice was at par with the weed-free treatment for grain yield in 1995 (46.7 q/ha).

Treatment
hand weeding twicee2
Interactor
Weedst0weed
Outcome
grain yielde2
Direction
at pare2
Value
46.7e2
Qualifier
1995e2
Comparator
Weed free treatmente2

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

e2

“Weed free treatment recorded the highest grain yield (48.8 q/ha) which was at par with hand weeding twice (42.0 and 46.7 q/ha during 1994 and 1995, respectively)”

✓ located verbatim in the source · abstract, characters 174–335 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Anilofos+2,4-D readymix was equally good as hand weeding twice for grain yield and yield attributes in both years.

Treatment
anilofos+2,4-D readymix (0.40+0.53 kg/ha)e3
Interactor
Weedst0weed
Outcome
grain yield, yield attributese3
Direction
equally goode3
Comparator
Hand weeding twicee3

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

e3

“Hand weeding twice and anilofos+2,4-D readymix (0.40+0.53 kg/ha) were equally good with regard to grain yield, yield attributes, reduction in weed population and dry weight during both the years”

✓ located verbatim in the source · abstract, characters 337–531 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Anilofos+2,4-D readymix was equally good as hand weeding twice for reduction in weed population and dry weight in both years.

Treatment
anilofos+2,4-D readymix (0.40+0.53 kg/ha)e3
Interactor
Weedst0weed
Outcome
reduction in weed population and dry weighte3
Direction
equally goode3
Comparator
Hand weeding twicee3

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

e3

“Hand weeding twice and anilofos+2,4-D readymix (0.40+0.53 kg/ha) were equally good with regard to grain yield, yield attributes, reduction in weed population and dry weight during both the years”

✓ located verbatim in the source · abstract, characters 337–531 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Hand weeding twice at 20 and 40 days was statistically similar to anilofos 0.40 kg in increasing yield and decreasing weed dry weight during 1994.

Treatment
Hand weeding twice at 20 and 40 dayse0
Interactor
Weedst0weed
Outcome
increasing yield and decreasing weed dry weighte0
Direction
similare0
Qualifier
during 1994e0
Comparator
anilofos 0.40 kge0

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

“Hand weeding twice at 20 and 40 days was also found statistically similar to anilofos 0.40 kg, butachlor 1.5 kg and pretilachlo; 0.75 kg/ha during 1994 in increasing yield and decreasing weed dry weight”

✓ located verbatim in the source · abstract, characters 533–735 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Hand weeding twice at 20 and 40 days was statistically similar to butachlor 1.5 kg in increasing yield and decreasing weed dry weight during 1994.

Treatment
Hand weeding twice at 20 and 40 dayse0
Interactor
Weedst0weed
Outcome
increasing yield and decreasing weed dry weighte0
Direction
similare0
Qualifier
during 1994e0
Comparator
butachlor 1.5 kge0

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

“Hand weeding twice at 20 and 40 days was also found statistically similar to anilofos 0.40 kg, butachlor 1.5 kg and pretilachlo; 0.75 kg/ha during 1994 in increasing yield and decreasing weed dry weight”

✓ located verbatim in the source · abstract, characters 533–735 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Hand weeding twice at 20 and 40 days was statistically similar to pretilachlor 0.75 kg/ha in increasing yield and decreasing weed dry weight during 1994.

Treatment
Hand weeding twice at 20 and 40 dayse0
Interactor
Weedst0weed
Outcome
increasing yield and decreasing weed dry weighte0
Direction
similare0
Qualifier
during 1994e0
Comparator
pretilachlo; 0.75 kg/hae0

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

“Hand weeding twice at 20 and 40 days was also found statistically similar to anilofos 0.40 kg, butachlor 1.5 kg and pretilachlo; 0.75 kg/ha during 1994 in increasing yield and decreasing weed dry weight”

✓ located verbatim in the source · abstract, characters 533–735 · show in text ↑
t0

“Weeds in Transplanted Rice”

✓ located verbatim in the source · title, characters 65–91 · show in text ↑

2,4-D · weed · Oryza sativa (rice)Results differ

49 papers: 47 positive, 2 negative or no effect

1 paper in the same direction as this paper · 47 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

45 papers more in this group

See all 49 papers →

2,4-D · yield · Oryza sativa (rice)Positive and negative results

62 papers: 52 positive, 10 negative or no effect

9 papers in the same direction as this paper · 52 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

58 papers more in this group

See all 62 papers →

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

603 papers: 579 positive, 24 negative or no effect

23 papers in the same direction as this paper · 579 in the opposite direction

  1. positive
  2. positive
  3. positive

599 papers more in this group

See all 603 papers →

herbicide · yield · Oryza sativa (rice)Positive and negative results

802 papers: 725 positive, 77 negative or no effect

724 papers in the same direction as this paper · 57 in the opposite direction · 20 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

798 papers more in this group

See all 802 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.