Paper · 2014 · BIOINFOLET - A Quarterly Journal of Life Sciences

Response of nitrogen levels and weed management practices on productivity of rice (Oryza sativa. L) under aerobic condition

Chandra Prakash; N.R. Koli; R. K. Shivran; et al.

6
claims
7
verbatim quotes
2
citations
2
research areas
—
Not open access

Abstract

Rice (variety IR-64) recorded maximum grain (3.46 t ha−1), straw (4.84 t ha1) and biological yield (8.30 t ha−1) with the application of 125 kg N ha−1 under aerobic conditions which was statistically at par with 100 kg N ha−1. Similarly, weed control practices also gave significantly higher grain yield. The application of Pendimethalin @ 1.0 kg a.i. ha−1 at 2 DAS + Rice: Dhaincha (1:1) + 2, 4-D Na salt @ 0.80 kg a.i. ha−1 at 25 DAS was most suitable with higher grain, straw and biological yields and lowest weed biomass.

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Claims 6

Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

At 125 kg N ha−1, rice grain yield reached 3.46 t ha−1 and was statistically at par with 100 kg N ha−1.

Material
IR-64e0
Treatment
125 kg N ha−1e0
Outcome
graine0
Direction
maximume0
Value
3.46 t ha−1e0
Comparator
100 kg N ha−1e0
Setting
aerobic conditionse0

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

“Rice (variety IR-64) recorded maximum grain (3.46 t ha−1), straw (4.84 t ha1) and biological yield (8.30 t ha−1) with the application of 125 kg N ha−1 under aerobic conditions which was statistically at par with 100 kg N ha−1.”

✓ located verbatim in the source · abstract, characters 0–226 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

At 125 kg N ha−1, rice straw yield reached 4.84 t ha1.

Material
IR-64e0
Treatment
125 kg N ha−1e0
Outcome
strawe0
Direction
maximume0
Value
4.84 t ha1e0
Comparator
100 kg N ha−1e0
Setting
aerobic conditionse0

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

“Rice (variety IR-64) recorded maximum grain (3.46 t ha−1), straw (4.84 t ha1) and biological yield (8.30 t ha−1) with the application of 125 kg N ha−1 under aerobic conditions which was statistically at par with 100 kg N ha−1.”

✓ located verbatim in the source · abstract, characters 0–226 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

At 125 kg N ha−1, rice biological yield reached 8.30 t ha−1.

Material
IR-64e0
Treatment
125 kg N ha−1e0
Outcome
biological yielde0
Direction
maximume0
Value
8.30 t ha−1e0
Comparator
100 kg N ha−1e0
Setting
aerobic conditionse0

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

“Rice (variety IR-64) recorded maximum grain (3.46 t ha−1), straw (4.84 t ha1) and biological yield (8.30 t ha−1) with the application of 125 kg N ha−1 under aerobic conditions which was statistically at par with 100 kg N ha−1.”

✓ located verbatim in the source · abstract, characters 0–226 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Weed control practices significantly increased rice grain yield.

Treatment
weed control practicese0
Outcome
grain yielde0
Direction
highere0

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

e0

“Similarly, weed control practices also gave significantly higher grain yield.”

✓ located verbatim in the source · abstract, characters 227–304 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 77–81 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined weed control treatment gave higher rice grain, straw and biological yields.

Treatment
Pendimethalin @ 1.0 kg a.i. ha−1 at 2 DAS + Rice: Dhaincha (1:1) + 2, 4-D Na salt @ 0.80 kg a.i. ha−1 at 25 DASe0
Outcome
grain, straw and biological yieldse0
Direction
highere0

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

e0

“The application of Pendimethalin @ 1.0 kg a.i. ha−1 at 2 DAS + Rice: Dhaincha (1:1) + 2, 4-D Na salt @ 0.80 kg a.i. ha−1 at 25 DAS was most suitable with higher grain, straw and biological yields and lowest weed biomass.”

✓ located verbatim in the source · abstract, characters 305–525 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined weed control treatment produced the lowest weed biomass.

Treatment
Pendimethalin @ 1.0 kg a.i. ha−1 at 2 DAS + Rice: Dhaincha (1:1) + 2, 4-D Na salt @ 0.80 kg a.i. ha−1 at 25 DASe0
Outcome
weed biomasse0
Direction
loweste0

Not reportedInteractorComparator

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 application of Pendimethalin @ 1.0 kg a.i. ha−1 at 2 DAS + Rice: Dhaincha (1:1) + 2, 4-D Na salt @ 0.80 kg a.i. ha−1 at 25 DAS was most suitable with higher grain, straw and biological yields and lowest weed biomass.”

✓ located verbatim in the source · abstract, characters 305–525 · show in text ↑

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

49 papers: 47 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  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

51 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

58 papers more in this group

See all 62 papers →

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

128 papers: 125 positive, 3 negative or no effect

124 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

124 papers more in this group

See all 128 papers →

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

135 papers: 126 positive, 9 negative or no effect

125 papers in the same direction as this paper · 5 in the opposite direction · 4 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

131 papers more in this group

See all 135 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. negative
  3. negative

798 papers more in this group

See all 802 papers →

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

2,045 papers: 1,803 positive, 242 negative or no effect

1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

2,041 papers more in this group

See all 2,045 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.