Paper · 2016 · Indian Journal of Weed Science

Weed management in maize

Sheela Barla; R.R. Upasani; A.N. Puran; et al.

5
claims
14
verbatim quotes
4
citations
2
research areas
—
Not open access

Abstract

A field experiment was conducted on sandy loam soil of Birsa Agricultural University, Ranchi during rainy season of 2014 to evaluate the performance of weed-control methods on weed dynamics and productivity of maize. The experiment was laid out in randomized block design with 12 treatment in three replication. Application of atrazine + pendimethalin 0.50 + 0.50 kg/ha as pre-emergence similar to two hand weeding at 20 and 40 DAS recorded reduced weed density dry matter accumulation compared to weedy check at 30 and 60 days after sowing. These resulted significantly increase in plant height, number of grains per cob, 100-seed weight as well as 65.6% significantly higher grain yield (3.80 t/ha) as compared to weedy check (1.309 t/ha), consequently maximum net return ( 53492/ha) and benefit: cost ratio (3.57) than rest of the treatments.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pre-emergence atrazine plus pendimethalin reduced weed density and dry matter accumulation in maize compared with the weedy check.

Taxon
maizeZea mayst0
Treatment
atrazine + pendimethalin 0.50 + 0.50 kg/ha as pre-emergencee0
Interactor
weede0weed
Outcome
weed density dry matter accumulatione0
Direction
reducede0
Qualifier
30 and 60 days after sowinge0
Comparator
weedy checke0
Setting
sandy loam soil of Birsa Agricultural University, Ranchie3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Weed management in maize”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e0

“Application of atrazine + pendimethalin 0.50 + 0.50 kg/ha as pre-emergence similar to two hand weeding at 20 and 40 DAS recorded reduced weed density dry matter accumulation compared to weedy check at 30 and 60 days after sowing”

✓ located verbatim in the source · abstract, characters 312–540 · show in text ↑
e3

“A field experiment was conducted on sandy loam soil of Birsa Agricultural University, Ranchi during rainy season of 2014”

✓ located verbatim in the source · abstract, characters 0–120 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Atrazine plus pendimethalin pre-emergence raised maize grain yield by 65.6% over the weedy check.

Taxon
maizeZea mayst0
Treatment
atrazine + pendimethalin 0.50 + 0.50 kg/ha as pre-emergencee0
Outcome
grain yielde1
Direction
highere1
Value
65.6%e1
Qualifier
3.80 t/hae1
Comparator
weedy checke1
Setting
sandy loam soil of Birsa Agricultural University, Ranchie3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Weed management in maize”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e0

“Application of atrazine + pendimethalin 0.50 + 0.50 kg/ha as pre-emergence similar to two hand weeding at 20 and 40 DAS recorded reduced weed density dry matter accumulation compared to weedy check at 30 and 60 days after sowing”

✓ located verbatim in the source · abstract, characters 312–540 · show in text ↑
e1

“These resulted significantly increase in plant height, number of grains per cob, 100-seed weight as well as 65.6% significantly higher grain yield (3.80 t/ha) as compared to weedy check (1.309 t/ha)”

✓ located verbatim in the source · abstract, characters 542–740 · show in text ↑
e3

“A field experiment was conducted on sandy loam soil of Birsa Agricultural University, Ranchi during rainy season of 2014”

✓ located verbatim in the source · abstract, characters 0–120 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Atrazine plus pendimethalin pre-emergence significantly increased maize plant height, grains per cob and 100-seed weight.

Taxon
maizeZea mayst0
Treatment
atrazine + pendimethalin 0.50 + 0.50 kg/ha as pre-emergencee0
Outcome
plant height, number of grains per cob, 100-seed weighte1
Direction
increasee1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Weed management in maize”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e0

“Application of atrazine + pendimethalin 0.50 + 0.50 kg/ha as pre-emergence similar to two hand weeding at 20 and 40 DAS recorded reduced weed density dry matter accumulation compared to weedy check at 30 and 60 days after sowing”

✓ located verbatim in the source · abstract, characters 312–540 · show in text ↑
e1

“These resulted significantly increase in plant height, number of grains per cob, 100-seed weight as well as 65.6% significantly higher grain yield (3.80 t/ha) as compared to weedy check (1.309 t/ha)”

✓ located verbatim in the source · abstract, characters 542–740 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum net return was obtained under the best weed-control treatments compared with the rest of the treatments.

Taxon
maizeZea mayst0
Outcome
net returne2
Direction
maximume2
Value
53492/hae2
Comparator
rest of the treatmentse2

Not reportedTreatment

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Weed management in maize”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e2

“consequently maximum net return ( 53492/ha) and benefit: cost ratio (3.57) than rest of the treatments”

✓ located verbatim in the source · abstract, characters 742–844 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum benefit:cost ratio was obtained under the best weed-control treatments compared with the rest of the treatments.

Taxon
maizeZea mayst0
Outcome
benefit: cost ratioe2
Direction
maximume2
Value
3.57e2
Comparator
rest of the treatmentse2

Not reportedTreatment

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Weed management in maize”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e2

“consequently maximum net return ( 53492/ha) and benefit: cost ratio (3.57) than rest of the treatments”

✓ located verbatim in the source · abstract, characters 742–844 · show in text ↑

pendimethalin · yield · Zea mays (maize)Results differ

54 papers: 52 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

50 papers more in this group

See all 54 papers →

atrazine · weed · Zea mays (maize)Results differ

202 papers: 197 positive, 5 negative or no effect

196 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. negative
  3. negative

198 papers more in this group

See all 202 papers →

atrazine · yield · Zea mays (maize)Results differ

240 papers: 205 positive, 35 negative or no effect

204 papers in the same direction as this paper · 29 in the opposite direction · 6 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

236 papers more in this group

See all 240 papers →

pendimethalin · weed · Zea mays (maize)Positive and negative results

44 papers: 43 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

40 papers more in this group

See all 44 papers →

herbicide · weed · Zea mays (maize)Positive and negative results

406 papers: 360 positive, 46 negative or no effect

359 papers in the same direction as this paper · 36 in the opposite direction · 10 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

402 papers more in this group

See all 406 papers →

herbicide · yield · Zea mays (maize)Positive and negative results

651 papers: 500 positive, 151 negative or no effect

499 papers in the same direction as this paper · 127 in the opposite direction · 24 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

647 papers more in this group

See all 651 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.