Paper · 2025 · Archives of Agriculture and Environmental Science

Impact of reduced rate of pre-emergence herbicide with aqueous extract of mustard crop residues on different weed management indices and yield of transplanted aman rice

Naymur Rahman Arif; Ridwan Ahmed Rahat; Mansura Khatun; et al.

11
claims
21
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

Effective weed management with herbicides and crop extracts boosts rice yield and growth. In this respect, a field experiment was conducted from July to December 2023 at the Agronomy Field Laboratory (AFL), Bangladesh Agricultural University (BAU), Mymensingh, to evaluate the effect of mustard crop residue extract combined with reduced herbicide doses on the yield and attributes of T. aman rice. The study involved three rice varieties BRRIdhan49, BRRI dhan87, and Binadhan-7 and seven treatments: no weeding (control), recommended dose of herbicide at pre-emergence (RDHP), mustard crop extract (MCE), 80% RDHP + MCE, 70% RDHP + MCE, 60% RDHP + MCE, and weed-free conditions. Results showed the highest weed growth in control treatment and the lowest in the weed-free treatment, with 80% RDHP + MCE showing the second-lowest weed growth. The weed-free treatment achieved the highest weed control index (WCI), weed control efficiency (WCE), and herbicide efficiency index (HEI), while minimizing weed index (WI), weed population index (WPI), weed mass index (WMI), and the Ammonia Index (AMI), followed by 80% RDHP + MCE. BRRI dhan87 produced the highest grain yield (5.36 t ha-¹), while BRRI dhan49 had the lowest (4.54 t ha-¹). The highest yield was recorded in the weed-free treatment (5.80 t ha-¹), followed by 80% RDHP + MCE (5.35 t ha-¹), and the control produced the lowest yield (2.63 t ha-¹). The study concludes that using 80% RDHP combined with MCE is an effective weed control strategy that enhances T. aman rice yield by reducing herbicide dependency.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗

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 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The weed-free treatment gave the highest weed control index, weed control efficiency and herbicide efficiency index

Treatment
weed-free treatmente2
Outcome
weed control index (WCI), weed control efficiency (WCE), and herbicide efficiency index (HEI)e2
Direction
higheste2

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e2

“The weed-free treatment achieved the highest weed control index (WCI), weed control efficiency (WCE), and herbicide efficiency index (HEI), while minimizing weed index (WI), weed population index (WPI), weed mass index (WMI), and the Ammonia Index (AMI), followed by 80% RDHP + MCE”

✓ located verbatim in the source · abstract, characters 842–1123 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The weed-free treatment minimized the weed index, weed population index and weed mass index

Treatment
weed-free treatmente2
Outcome
weed index (WI), weed population index (WPI), weed mass index (WMI)e2
Direction
minimizinge2

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e2

“The weed-free treatment achieved the highest weed control index (WCI), weed control efficiency (WCE), and herbicide efficiency index (HEI), while minimizing weed index (WI), weed population index (WPI), weed mass index (WMI), and the Ammonia Index (AMI), followed by 80% RDHP + MCE”

✓ located verbatim in the source · abstract, characters 842–1123 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The weed-free treatment minimized the Ammonia Index

Treatment
weed-free treatmente2
Outcome
Ammonia Index (AMI)e2
Direction
minimizinge2

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e2

“The weed-free treatment achieved the highest weed control index (WCI), weed control efficiency (WCE), and herbicide efficiency index (HEI), while minimizing weed index (WI), weed population index (WPI), weed mass index (WMI), and the Ammonia Index (AMI), followed by 80% RDHP + MCE”

✓ located verbatim in the source · abstract, characters 842–1123 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The control treatment had the highest weed growth

Treatment
control treatmente4
Outcome
weed growthe4
Direction
higheste4

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e4

“Results showed the highest weed growth in control treatment and the lowest in the weed-free treatment, with 80% RDHP + MCE showing the second-lowest weed growth”

✓ located verbatim in the source · abstract, characters 680–840 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

80% RDHP + MCE gave the second-lowest weed growth

Treatment
80% RDHP + MCEe4
Outcome
weed growthe4
Direction
second-loweste4

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e4

“Results showed the highest weed growth in control treatment and the lowest in the weed-free treatment, with 80% RDHP + MCE showing the second-lowest weed growth”

✓ located verbatim in the source · abstract, characters 680–840 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The weed-free treatment gave the highest rice yield, 5.80 t/ha

Treatment
weed-free treatmente3
Outcome
yielde3
Direction
higheste3
Value
5.80 t ha-¹e3

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e3

“The highest yield was recorded in the weed-free treatment (5.80 t ha-¹), followed by 80% RDHP + MCE (5.35 t ha-¹), and the control produced the lowest yield (2.63 t ha-¹)”

✓ located verbatim in the source · abstract, characters 1233–1403 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 80% RDHP + MCE treatment gave a rice yield of 5.35 t/ha, followed by the weed-free treatment

Treatment
80% RDHP + MCEe3
Outcome
yielde3
Direction
followed bye3
Value
5.35 t ha-¹e3

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e3

“The highest yield was recorded in the weed-free treatment (5.80 t ha-¹), followed by 80% RDHP + MCE (5.35 t ha-¹), and the control produced the lowest yield (2.63 t ha-¹)”

✓ located verbatim in the source · abstract, characters 1233–1403 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The control treatment gave the lowest rice yield, 2.63 t/ha

Treatment
controle3
Outcome
yielde3
Direction
loweste3
Value
2.63 t ha-¹e3

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

t0

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e3

“The highest yield was recorded in the weed-free treatment (5.80 t ha-¹), followed by 80% RDHP + MCE (5.35 t ha-¹), and the control produced the lowest yield (2.63 t ha-¹)”

✓ located verbatim in the source · abstract, characters 1233–1403 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

BRRI dhan87 gave the highest grain yield, 5.36 t/ha

Material
BRRI dhan87e5
Outcome
grain yielde5
Direction
higheste5
Value
5.36 t ha-¹e5

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

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e5

“BRRI dhan87 produced the highest grain yield (5.36 t ha-¹), while BRRI dhan49 had the lowest (4.54 t ha-¹)”

✓ located verbatim in the source · abstract, characters 1125–1231 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

BRRI dhan49 gave the lowest grain yield, 4.54 t/ha

Material
BRRI dhan49e5
Outcome
grain yielde5
Direction
loweste5
Value
4.54 t ha-¹e5

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

“transplanted aman rice”

✓ located verbatim in the source · title, characters 146–168 · show in text ↑
e5

“BRRI dhan87 produced the highest grain yield (5.36 t ha-¹), while BRRI dhan49 had the lowest (4.54 t ha-¹)”

✓ located verbatim in the source · abstract, characters 1125–1231 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

80% RDHP combined with mustard extract is an effective weed control strategy for T. aman rice

Taxon
T. aman ricee6
Outcome
effective weed control strategye6

Verbatim

e6

“The study concludes that using 80% RDHP combined with MCE is an effective weed control strategy that enhances T. aman rice yield by reducing herbicide dependency”

✓ located verbatim in the source · abstract, characters 1405–1566 · show in text ↑

botanical · yield · Oryza sativa (rice)Results differ

208 papers: 193 positive, 15 negative or no effect

192 papers in the same direction as this paper · 11 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

204 papers more in this group

See all 208 papers →

herbicide · molecular: metabolites · Oryza sativa (rice)Positive and negative results

9 papers: 6 positive, 3 negative or no effect

5 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. negative

5 papers more in this group

See all 9 papers →

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

27 papers: 25 positive, 2 negative or no effect

24 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

23 papers more in this group

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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. negative
  2. no effect
  3. negative

599 papers more in this group

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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

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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.