Paper · 2020 · International Journal of Chemical Studies

Studies on mulching and weed management in unpuddled transplanted rice (Oryza sativa L.)

Sneha Kumari; Manoj Kumar Singh; Sripriya Das

7
claims
14
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted during kharif season of 2017 and 2018 at Institute of Agricultural Sciences, BHU, Varanasi. The experiment was laid out in a split plot design with three mulching treatments, viz. no mulching, cover crop of Sesbania followed by green mulch and rice residue mulch (5 t/ ha) in main plots and five weed management treatments, viz. weedy, two hand weeding, post-emergence application of bispyribac Na 25 g/ ha, penoxsulam 30 g/ ha and tank mix bispyribac Na 25 g/ ha + pyrazosulfuron 20 g/ ha at 18 DAT in sub plots replicated thrice. The results revealed that cover crop of Sesbania followed by surface mulch followed by green mulch and rice straw mulch recorded significantly higher growth attributes, yield attributes and production efficiency as compared to no mulching. Among weed management treatments post-emergence application of penoxsulam 30 g/ha resulted in significantly higher growth and yield attributes as compared to weedy and increased production efficiency followed by spraying of bispyribac 25 g/ha+ pyrazosulfuron 20 g/ha and post-emergence spraying of bispyribac 25 g/ha.

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Claims 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sesbania cover crop and green mulch improved rice growth attributes relative to no mulch.

Treatment
cover crop of Sesbania followed by surface mulch followed by green mulche0
Outcome
growth attributese0
Direction
highere0
Comparator
no mulchinge0

Not reportedSetting

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

t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 66–88 · show in text ↑
e0

“cover crop of Sesbania followed by surface mulch followed by green mulch and rice straw mulch recorded significantly higher growth attributes, yield attributes and production efficiency as compared to no mulching.”

✓ located verbatim in the source · abstract, characters 591–804 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sesbania cover crop and green mulch improved rice yield attributes and production efficiency relative to no mulch.

Treatment
cover crop of Sesbania followed by surface mulch followed by green mulche0
Outcome
yield attributes and production efficiencye0
Direction
highere0
Comparator
no mulchinge0

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

t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 66–88 · show in text ↑
e0

“cover crop of Sesbania followed by surface mulch followed by green mulch and rice straw mulch recorded significantly higher growth attributes, yield attributes and production efficiency as compared to no mulching.”

✓ located verbatim in the source · abstract, characters 591–804 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rice straw mulch improved growth, yield attributes and production efficiency relative to no mulch.

Treatment
rice straw mulche0
Outcome
growth attributes, yield attributes and production efficiencye0
Direction
highere0
Comparator
no mulchinge0

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

t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 66–88 · show in text ↑
e0

“cover crop of Sesbania followed by surface mulch followed by green mulch and rice straw mulch recorded significantly higher growth attributes, yield attributes and production efficiency as compared to no mulching.”

✓ located verbatim in the source · abstract, characters 591–804 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Penoxsulam 30 g/ha gave higher growth and yield attributes than weedy treatment.

Treatment
post-emergence application of penoxsulam 30 g/hae0
Outcome
growth and yield attributese0
Direction
highere0
Comparator
weedye0

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

t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 66–88 · show in text ↑
e0

“post-emergence application of penoxsulam 30 g/ha resulted in significantly higher growth and yield attributes as compared to weedy and increased production efficiency”

✓ located verbatim in the source · abstract, characters 838–1004 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Penoxsulam 30 g/ha increased rice production efficiency.

Treatment
post-emergence application of penoxsulam 30 g/hae0
Outcome
production efficiencye0
Direction
increasede0
Comparator
weedye0

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

t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 66–88 · show in text ↑
e0

“post-emergence application of penoxsulam 30 g/ha resulted in significantly higher growth and yield attributes as compared to weedy and increased production efficiency”

✓ located verbatim in the source · abstract, characters 838–1004 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The bispyribac plus pyrazosulfuron spray ranked after penoxsulam for production efficiency.

Outcome
spraying of bispyribac 25 g/ha+ pyrazosulfuron 20 g/hae0

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

t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 66–88 · show in text ↑
e0

“followed by spraying of bispyribac 25 g/ha+ pyrazosulfuron 20 g/ha and post-emergence spraying of bispyribac 25 g/ha.”

✓ located verbatim in the source · abstract, characters 1005–1122 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Bispyribac spray ranked after bispyribac plus pyrazosulfuron for production efficiency.

Outcome
post-emergence spraying of bispyribac 25 g/hae0

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

t0

“rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 66–88 · show in text ↑
e0

“followed by spraying of bispyribac 25 g/ha+ pyrazosulfuron 20 g/ha and post-emergence spraying of bispyribac 25 g/ha.”

✓ located verbatim in the source · abstract, characters 1005–1122 · show in text ↑

Penoxsulam · yield · Oryza sativa (rice)Results differ

87 papers: 75 positive, 12 negative or no effect

74 papers in the same direction as this paper · 7 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

83 papers more in this group

See all 87 papers →

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

55 papers: 52 positive, 3 negative or no effect

51 papers in the same direction as this paper · 3 reporting no difference from an alternative

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

51 papers more in this group

See all 55 papers →

Sesbania · growth · Oryza sativa (rice)Results agree

13 papers: 13 positive, 0 negative or no effect

12 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 papers →

cover crop · yield · Oryza sativa (rice)Results differ

25 papers: 17 positive, 8 negative or no effect

16 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

21 papers more in this group

See all 25 papers →

mulching · yield · Oryza sativa (rice)Results differ

126 papers: 106 positive, 20 negative or no effect

105 papers in the same direction as this paper · 17 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
    Mulching reduced rice yield by 43% in one of four comparisons with burning.

    Effect of residue management and fallow length on weeds and rice yield · 1998 · compared with farmers' traditional burning of crop and weed residues

    Opposite direction

  2. negative
  3. negative

122 papers more in this group

See all 126 papers →

cover crop · growth · Oryza sativa (rice)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

mulching · growth · Oryza sativa (rice)Positive and negative results

46 papers: 34 positive, 12 negative or no effect

33 papers in the same direction as this paper · 12 in the opposite direction

  1. negative
  2. no effect
  3. negative

42 papers more in this group

See all 46 papers →

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

327 papers: 279 positive, 48 negative or no effect

278 papers in the same direction as this paper · 37 in the opposite direction · 11 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

323 papers more in this group

See all 327 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.