Paper · 2017 · Indian Journal of Weed Science

Nutrient uptake by rice and weeds as influenced by different weed management practices in dry-seeded rice

K. Hemalatha; A.V. Ramana; K.V. Ramana Murthy; et al.

8
claims
16
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

Among the herbicides, application of orthosulfamuron 100 g/ha was effective in suppressing sedges and broad-leaved weeds, metsulfuron-methyl + chlorimuron-ethyl 4 g/ha was effective in suppressing broad-leaved weeds and sequential application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuron-methyl + chlorimuron-ethyl 4 g/ha at 20–25 DAS performed better in controlling weeds resulting in higher weed control efficiency and lower weed index when compared to alone application of herbicides either as pre-emergence and post-emergence. Pre-emergence application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/ha as post-emergence at 20–25 DAS, was evidenced higher grain yield and higher uptake of nutrients in crops and lower uptake of nutrients i.e., N, P and K in weeds

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Orthosulfamuron at 100 g/ha suppressed sedges.

Treatment
orthosulfamuron 100 g/hae0
Interactor
sedgesCarexe0weed
Outcome
sedgese0
Direction
suppressinge0

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 ↗
Carex
Carex · Interactor · picture of the genus (one of its species)Christian Fischer · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of orthosulfamuron 100 g/ha was effective in suppressing sedges”

✓ located verbatim in the source · abstract, characters 22–97 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Orthosulfamuron at 100 g/ha suppressed broad-leaved weeds.

Treatment
orthosulfamuron 100 g/hae0
Interactor
broad-leaved weedse0weed
Outcome
broad-leaved weedse0
Direction
suppressinge0

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

“application of orthosulfamuron 100 g/ha was effective in suppressing sedges and broad-leaved weeds”

✓ located verbatim in the source · abstract, characters 22–120 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Metsulfuron-methyl plus chlorimuron-ethyl at 4 g/ha suppressed broad-leaved weeds.

Treatment
metsulfuron-methyl + chlorimuron-ethyl 4 g/hae0
Interactor
broad-leaved weedse0weed
Outcome
broad-leaved weedse0
Direction
suppressinge0

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

“metsulfuron-methyl + chlorimuron-ethyl 4 g/ha was effective in suppressing broad-leaved weeds”

✓ located verbatim in the source · abstract, characters 122–215 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sequential herbicides gave higher weed control efficiency than single applications.

Treatment
sequential application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuron-methyl + chlorimuron-ethyl 4 g/ha at 20–25 DASe0
Interactor
weedse0weed
Outcome
weed control efficiencye0
Direction
highere0
Comparator
alone application of herbicidese0

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

“sequential application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuron-methyl + chlorimuron-ethyl 4 g/ha at 20–25 DAS performed better in controlling weeds resulting in higher weed control efficiency and lower weed index when compared to alone application of herbicides either as pre-emergence and post-emergence.”

✓ located verbatim in the source · abstract, characters 220–539 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sequential herbicides gave a lower weed index than single applications.

Treatment
sequential application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuron-methyl + chlorimuron-ethyl 4 g/ha at 20–25 DASe0
Interactor
weedse0weed
Outcome
weed indexe0
Direction
lowere0
Comparator
alone application of herbicidese0

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

“sequential application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuron-methyl + chlorimuron-ethyl 4 g/ha at 20–25 DAS performed better in controlling weeds resulting in higher weed control efficiency and lower weed index when compared to alone application of herbicides either as pre-emergence and post-emergence.”

✓ located verbatim in the source · abstract, characters 220–539 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The sequential herbicide treatment gave higher rice grain yield.

Treatment
pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/hae0
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

“Pre-emergence application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/ha as post-emergence at 20–25 DAS, was evidenced higher grain yield”

✓ located verbatim in the source · abstract, characters 540–717 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The sequential herbicide treatment gave higher nutrient uptake by rice.

Treatment
pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/hae0
Outcome
uptake of nutrients in cropse0
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

“Pre-emergence application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/ha as post-emergence at 20–25 DAS, was evidenced higher grain yield and higher uptake of nutrients in crops”

✓ located verbatim in the source · abstract, characters 540–757 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The sequential herbicide treatment gave lower N, P and K uptake by weeds.

Treatment
pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/hae0
Interactor
weedse0weed
Outcome
uptake of nutrients i.e., N, P and K in weedse0
Direction
lowere0

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

“Pre-emergence application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/ha as post-emergence at 20–25 DAS, was evidenced higher grain yield and higher uptake of nutrients in crops and lower uptake of nutrients i.e., N, P and K in weeds”

✓ located verbatim in the source · abstract, characters 540–813 · show in text ↑
t0

“Nutrient uptake by rice”

✓ located verbatim in the source · title, characters 0–23 · show in text ↑

chlorimuron-ethyl · nutrient: content · Oryza sativa (rice)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive
See all 4 papers →

metsulfuron methyl · nutrient: content · Oryza sativa (rice)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

chlorimuron-ethyl · yield · Oryza sativa (rice)Positive and negative results

27 papers: 22 positive, 5 negative or no effect

21 papers in the same direction as this paper · 2 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

23 papers more in this group

See all 27 papers →

metsulfuron methyl · yield · Oryza sativa (rice)Positive and negative results

42 papers: 30 positive, 12 negative or no effect

29 papers in the same direction as this paper · 9 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

38 papers more in this group

See all 42 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 →

orthosulfamuron · weed · Oryza sativa (rice)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

pendimethalin · nutrient: content · Oryza sativa (rice)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

8 of 10 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.