Paper · 1992 · Tropical Pest Management

Effect of cultural practices on weed management in rainfed upland rice

R. S. Singh; D. C. Ghosh

9
claims
9
verbatim quotes
5
citations
2
research areas
—
Not open access

Abstract

Abstract The results of field experiments showed that an improved crop package caused considerable reduction in density and dry weights of all categories of weeds and increased yield four times over traditional farmers’ practices in rainfed upland rice. Better land preparation (two ploughings at 15 d.b.s. and two at sowing), timely sowing (last week of June), application of fertilizer and an additional hand weeding markedly decreased the infestation of all categories of weeds in rainfed upland rice and helped in producing high grain yield. Improved variety and organic manuring had no effect on weed infestation but seemed to be essential for the yield improvement of upland rice.

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Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The improved crop package reduced density and dry weights of all categories of weeds in rainfed upland rice compared with traditional farmers’ practices.

Taxon
rainfed upland riceOryza sativae0
Treatment
improved crop packagee0
Interactor
weedse0weed
Outcome
density and dry weights of all categories of weedse0
Direction
considerable reductione0
Comparator
traditional farmers’ practicese0
Setting
field experimentse0

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 results of field experiments showed that an improved crop package caused considerable reduction in density and dry weights of all categories of weeds and increased yield four times over traditional farmers’ practices in rainfed upland rice”

✓ located verbatim in the source · abstract, characters 9–252 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The improved crop package increased rainfed upland rice yield four times over traditional farmers’ practices.

Taxon
rainfed upland riceOryza sativae0
Treatment
improved crop packagee0
Outcome
yielde0
Direction
increasede0
Value
four timese0
Comparator
traditional farmers’ practicese0
Setting
field experimentse0

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 results of field experiments showed that an improved crop package caused considerable reduction in density and dry weights of all categories of weeds and increased yield four times over traditional farmers’ practices in rainfed upland rice”

✓ located verbatim in the source · abstract, characters 9–252 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Better land preparation markedly decreased the infestation of all categories of weeds in rainfed upland rice.

Taxon
rainfed upland riceOryza sativae1
Treatment
Better land preparatione1
Interactor
weedse1weed
Outcome
infestation of all categories of weedse1
Direction
markedly decreasede1

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

“Better land preparation (two ploughings at 15 d.b.s. and two at sowing), timely sowing (last week of June), application of fertilizer and an additional hand weeding markedly decreased the infestation of all categories of weeds in rainfed upland rice and helped in producing high grain yield”

✓ located verbatim in the source · abstract, characters 254–544 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Timely sowing markedly decreased the infestation of all categories of weeds in rainfed upland rice.

Taxon
rainfed upland riceOryza sativae1
Treatment
timely sowing (last week of June)e1
Interactor
weedse1weed
Outcome
infestation of all categories of weedse1
Direction
markedly decreasede1

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

“Better land preparation (two ploughings at 15 d.b.s. and two at sowing), timely sowing (last week of June), application of fertilizer and an additional hand weeding markedly decreased the infestation of all categories of weeds in rainfed upland rice and helped in producing high grain yield”

✓ located verbatim in the source · abstract, characters 254–544 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Application of fertilizer markedly decreased the infestation of all categories of weeds in rainfed upland rice.

Taxon
rainfed upland riceOryza sativae1
Treatment
application of fertilizere1
Interactor
weedse1weed
Outcome
infestation of all categories of weedse1
Direction
markedly decreasede1

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

“Better land preparation (two ploughings at 15 d.b.s. and two at sowing), timely sowing (last week of June), application of fertilizer and an additional hand weeding markedly decreased the infestation of all categories of weeds in rainfed upland rice and helped in producing high grain yield”

✓ located verbatim in the source · abstract, characters 254–544 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

An additional hand weeding markedly decreased the infestation of all categories of weeds in rainfed upland rice.

Taxon
rainfed upland riceOryza sativae1
Treatment
an additional hand weedinge1
Interactor
weedse1weed
Outcome
infestation of all categories of weedse1
Direction
markedly decreasede1

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

“Better land preparation (two ploughings at 15 d.b.s. and two at sowing), timely sowing (last week of June), application of fertilizer and an additional hand weeding markedly decreased the infestation of all categories of weeds in rainfed upland rice and helped in producing high grain yield”

✓ located verbatim in the source · abstract, characters 254–544 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Improved variety had no effect on weed infestation in upland rice.

Taxon
upland riceOryza sativae2
Treatment
Improved varietye2
Outcome
weed infestatione2
Direction
had no effecte2

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

e2

“Improved variety and organic manuring had no effect on weed infestation but seemed to be essential for the yield improvement of upland rice”

✓ located verbatim in the source · abstract, characters 546–685 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Organic manuring had no effect on weed infestation in upland rice.

Taxon
upland riceOryza sativae2
Treatment
organic manuringe2
Outcome
weed infestatione2
Direction
had no effecte2

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

e2

“Improved variety and organic manuring had no effect on weed infestation but seemed to be essential for the yield improvement of upland rice”

✓ located verbatim in the source · abstract, characters 546–685 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Improved variety and organic manuring seem essential for the yield improvement of upland rice.

Taxon
upland riceOryza sativae2
Treatment
Improved variety and organic manuringe2
Outcome
yield improvement of upland ricee2

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

“Improved variety and organic manuring had no effect on weed infestation but seemed to be essential for the yield improvement of upland rice”

✓ located verbatim in the source · abstract, characters 546–685 · show in text ↑

sowing time · weed · Oryza sativa (rice)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

44 papers: 41 positive, 3 negative or no effect

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

68 papers: 53 positive, 15 negative or no effect

52 papers in the same direction as this paper · 15 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

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

603 papers: 579 positive, 24 negative or no effect

578 papers in the same direction as this paper · 17 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
  2. negative
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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.