Paper · 2023 · Indian Journal of Weed Science

Weed dynamics, productivity and profitability of wheat as influenced by tillage and weed management practices in Eastern Indo-Gangetic Plains

Parmeswar Dayal; Arun Kumar; Ravikesh Kumar Pal; et al.

7
claims
20
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds which create competitive stress resulting in yield losses varying from 10-70% depending upon their density. A field experiment was conducted during winter season of 2021-22 at the Research Farm, Bihar Agricultural University, Sabour, Bhagalpur, Bihar, India to assess the effect of tillage and weed management practices on weed dynamics, yield and economics of wheat. The experiment was carried out in a split plot design, replicated thrice. The main plot comprised of two tillage methods i.e., conventional tillage and zero tillage while subplots consisted different herbicide combinations i.e., weedy, weed free, pinoxaden 5.1% EC 20 g/ha, carfentrazone-ethyl 40% DF 20 g/ha, clodinafop-propargyl 15% WP EC 60 g/ha, carfentrazone-ethyl 20% DF 20 g/ha + pinoxaden 5.1% EC 20 g/ha, carfentrazone-ethyl 20% DF EC 20 g/ha + pinoxaden 5.1% EC 20 g/ha, metsulfuron-methyl 20% WP 4 g/ha + clodinafop-propargyl 15% WP 60 g/ha, metsulfuron-methyl 20% WP 4 g/ha + pinoxaden 5.1% EC 20 g/ha. The low weed density and biomass along with higher grain yield were recorded under zero tillage as compared to conventional tillage. Similarly, zero tillage recorded lower cost of cultivation ( 33702 /ha), higher net returns ( 69381 /ha) and B: C ratio (2.07). Among herbicide combinations, the treatment metsulfuron-methyl 20% WP 4 g/ha + clodinafop-propargyl 15% WP 60 g/ha followed by metsulfuron-methyl 20% WP 4 g/ha + pinoxaden 5.1% EC 20 g/ha resulted in higher weed control efficiency, yield, net returns and B:C ratio.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zero tillage reduced weed density and weed biomass in wheat compared with conventional tillage.

Treatment
zero tillagee1
Outcome
weed density and biomasse1
Direction
lowerinferrede1
Comparator
conventional tillagee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds”

✓ located verbatim in the source · abstract, characters 0–81 · show in text ↑
e1

“The low weed density and biomass along with higher grain yield were recorded under zero tillage as compared to conventional tillage”

✓ located verbatim in the source · abstract, characters 1065–1196 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zero tillage increased wheat grain yield compared with conventional tillage.

Treatment
zero tillagee1
Outcome
grain yielde1
Direction
highere1
Comparator
conventional tillagee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds”

✓ located verbatim in the source · abstract, characters 0–81 · show in text ↑
e1

“The low weed density and biomass along with higher grain yield were recorded under zero tillage as compared to conventional tillage”

✓ located verbatim in the source · abstract, characters 1065–1196 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zero tillage lowered the cost of cultivation of wheat to 33702 per ha compared with conventional tillage.

Treatment
zero tillagee2
Outcome
cost of cultivatione2
Direction
lowere2
Value
33702 /hae2
Comparator
conventional tillagee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds”

✓ located verbatim in the source · abstract, characters 0–81 · show in text ↑
e1

“as compared to conventional tillage”

✓ located verbatim in the source · abstract, characters 1161–1196 · show in text ↑
e2

“zero tillage recorded lower cost of cultivation ( 33702 /ha)”

✓ located verbatim in the source · abstract, characters 1209–1269 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zero tillage increased net returns in wheat to 69381 per ha compared with conventional tillage.

Treatment
zero tillagee3
Outcome
net returnse2
Direction
highere2
Value
69381 /hae2
Comparator
conventional tillagee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds”

✓ located verbatim in the source · abstract, characters 0–81 · show in text ↑
e1

“as compared to conventional tillage”

✓ located verbatim in the source · abstract, characters 1161–1196 · show in text ↑
e2

“higher net returns ( 69381 /ha)”

✓ located verbatim in the source · abstract, characters 1271–1302 · show in text ↑
e3

“zero tillage recorded”

✓ located verbatim in the source · abstract, characters 1209–1230 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zero tillage increased the B:C ratio of wheat to 2.07 compared with conventional tillage.

Treatment
zero tillagee3
Outcome
B: C ratioe2
Direction
highere4
Value
2.07e2
Comparator
conventional tillagee1

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds”

✓ located verbatim in the source · abstract, characters 0–81 · show in text ↑
e1

“as compared to conventional tillage”

✓ located verbatim in the source · abstract, characters 1161–1196 · show in text ↑
e2

“B: C ratio (2.07)”

✓ located verbatim in the source · abstract, characters 1307–1324 · show in text ↑
e3

“zero tillage recorded”

✓ located verbatim in the source · abstract, characters 1209–1230 · show in text ↑
e4

“higher net returns ( 69381 /ha) and B: C ratio (2.07)”

✓ located verbatim in the source · abstract, characters 1271–1324 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Among herbicide combinations, metsulfuron-methyl plus clodinafop-propargyl gave higher weed control efficiency, yield and net returns in wheat.

Treatment
metsulfuron-methyl 20% WP 4 g/ha + clodinafop-propargyl 15% WP 60 g/hae3
Outcome
weed control efficiency, yield, net returnse3
Direction
highere3
Comparator
herbicide combinationse3

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds”

✓ located verbatim in the source · abstract, characters 0–81 · show in text ↑
e3

“Among herbicide combinations, the treatment metsulfuron-methyl 20% WP 4 g/ha + clodinafop-propargyl 15% WP 60 g/ha followed by metsulfuron-methyl 20% WP 4 g/ha + pinoxaden 5.1% EC 20 g/ha resulted in higher weed control efficiency, yield, net returns and B:C ratio”

✓ located verbatim in the source · abstract, characters 1326–1590 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Among herbicide combinations, metsulfuron-methyl plus clodinafop-propargyl gave a higher B:C ratio in wheat.

Treatment
metsulfuron-methyl 20% WP 4 g/ha + clodinafop-propargyl 15% WP 60 g/hae3
Outcome
B:C ratioe3
Direction
highere3
Comparator
herbicide combinationse3

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat (Triticum aestivum L.) is infested with several grassy and broad-leaf weeds”

✓ located verbatim in the source · abstract, characters 0–81 · show in text ↑
e3

“Among herbicide combinations, the treatment metsulfuron-methyl 20% WP 4 g/ha + clodinafop-propargyl 15% WP 60 g/ha followed by metsulfuron-methyl 20% WP 4 g/ha + pinoxaden 5.1% EC 20 g/ha resulted in higher weed control efficiency, yield, net returns and B:C ratio”

✓ located verbatim in the source · abstract, characters 1326–1590 · show in text ↑

clodinafop-propargyl · yield · Triticum aestivum (wheat)Results differ

45 papers: 41 positive, 4 negative or no effect

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

  1. negative
  2. no effect
  3. negative

41 papers more in this group

See all 45 papers →

clodinafop-propargyl · weed · Triticum aestivum (wheat)Positive and negative results

37 papers: 34 positive, 3 negative or no effect

33 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

33 papers more in this group

See all 37 papers →

metsulfuron methyl · weed · Triticum aestivum (wheat)Positive and negative results

134 papers: 132 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

130 papers more in this group

See all 134 papers →

metsulfuron methyl · yield · Triticum aestivum (wheat)Positive and negative results

155 papers: 143 positive, 12 negative or no effect

142 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. negative

151 papers more in this group

See all 155 papers →

tillage · weed · Triticum aestivum (wheat)Results differ

183 papers: 126 positive, 57 negative or no effect

125 papers in the same direction as this paper · 56 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

179 papers more in this group

See all 183 papers →

tillage · yield · Triticum aestivum (wheat)Positive and negative results

1,414 papers: 1,116 positive, 298 negative or no effect

1,115 papers in the same direction as this paper · 257 in the opposite direction · 41 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

1,410 papers more in this group

See all 1,414 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.