Paper · 2001 · Indian Journal of Agronomy

Weed management in late sown wheat (Triticum aestivum) after rice (Oryza sativa) in rice-wheat system in rainfed lowland

G. SINGH; O.P. SINGH; SHER SINGH; et al.

20
claims
37
verbatim quotes
13
citations
2
research areas
✓
Open access

Abstract

To study the efficacy of different herbicides, tillage practices and weed control measures on late sown wheat ( Tr iticum aestivum L. emend. Fiori & Paol) field experiments were conducted during winter of 2004-05 to 2006-07 at Ghaghraghat (Bahraich) in Uttar Pradesh. Significantly lower density, weight, and nutrient uptake by weeds was recorded with isoproturon + 2,4-D (0.75 + 0.6 kg/ha) resulting in higher mean grain yield (3.89 tonne /ha) and net income (Rs. 18,375/ha). Weed free treatment recorded the highest energy output and lowest energy use efficiency (EUE). Isoproturon + 2, 4-D resulted in the highest EUE and energy productivity followed by metribuzin. Conventional tillage (CT) significantly increased density and dry matter of weeds when compared with zero tillage (ZT), thus, ZT increased grain yield of wheat by 2.18% as compared to CT. Sulfosulfuron (25 g/ ha) recorded the lower density and dry weight of weeds and higher weed suppression efficiency (83.43%) fol- lowed by isoproturon + 2,4-D (81.04%). Application of isoprturon + 2,4-D produced significantly higher grain yield in ZT, and sulfosulfuron in CT. Irrespective of tillage, isoproturon + 2,4-D gave the highest net income (Rs 17.12 x 103/ha) and benefit : cost ratio (2.59). CT consumed 23.66% more energy than ZT. The EUE and energy productivity was highest with ZT and sulfosulfuron.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 20

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Isoproturon plus 2,4-D reduced weed density.

Treatment
isoproturon + 2,4-D (0.75 + 0.6 kg/ha)e0
Interactor
weedse0weed
Outcome
densitye0
Direction
lowere0

Not reportedComparator

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

“Significantly lower density, weight, and nutrient uptake by weeds was recorded with isoproturon + 2,4-D (0.75 + 0.6 kg/ha) resulting in higher mean grain yield (3.89 tonne /ha) and net income (Rs. 18,375/ha).”

✓ located verbatim in the source · abstract, characters 268–476 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Isoproturon plus 2,4-D reduced weed weight.

Treatment
isoproturon + 2,4-D (0.75 + 0.6 kg/ha)e0
Interactor
weedse0weed
Outcome
weighte0
Direction
lowere0

Not reportedComparator

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

“Significantly lower density, weight, and nutrient uptake by weeds was recorded with isoproturon + 2,4-D (0.75 + 0.6 kg/ha) resulting in higher mean grain yield (3.89 tonne /ha) and net income (Rs. 18,375/ha).”

✓ located verbatim in the source · abstract, characters 268–476 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Isoproturon plus 2,4-D reduced weed nutrient uptake by weeds.

Treatment
isoproturon + 2,4-D (0.75 + 0.6 kg/ha)e0
Interactor
weedse0weed
Outcome
nutrient uptake by weedse0
Direction
lowere0

Not reportedComparator

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

“Significantly lower density, weight, and nutrient uptake by weeds was recorded with isoproturon + 2,4-D (0.75 + 0.6 kg/ha) resulting in higher mean grain yield (3.89 tonne /ha) and net income (Rs. 18,375/ha).”

✓ located verbatim in the source · abstract, characters 268–476 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Isoproturon plus 2,4-D yielded higher mean grain yield.

Treatment
isoproturon + 2,4-D (0.75 + 0.6 kg/ha)e0
Interactor
weedse0weed
Outcome
mean grain yielde0
Direction
highere0
Value
3.89 tonne /hae0

Not reportedComparator

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

“Significantly lower density, weight, and nutrient uptake by weeds was recorded with isoproturon + 2,4-D (0.75 + 0.6 kg/ha) resulting in higher mean grain yield (3.89 tonne /ha) and net income (Rs. 18,375/ha).”

✓ located verbatim in the source · abstract, characters 268–476 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Isoproturon plus 2,4-D yielded higher net income.

Treatment
isoproturon + 2,4-D (0.75 + 0.6 kg/ha)e0
Interactor
weedse0weed
Outcome
net incomee0
Direction
highere0
Value
Rs. 18,375/hae0

Not reportedComparator

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

“Significantly lower density, weight, and nutrient uptake by weeds was recorded with isoproturon + 2,4-D (0.75 + 0.6 kg/ha) resulting in higher mean grain yield (3.89 tonne /ha) and net income (Rs. 18,375/ha).”

✓ located verbatim in the source · abstract, characters 268–476 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Weed-free treatment had highest energy output.

Treatment
Weed free treatmente0
Interactor
Weede0weed
Outcome
energy outpute0
Direction
higheste0

Not reportedComparator

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

“Weed free treatment recorded the highest energy output and lowest energy use efficiency (EUE).”

✓ located verbatim in the source · abstract, characters 477–571 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Weed-free treatment had lowest energy use efficiency (EUE).

Treatment
Weed free treatmente0
Interactor
Weede0weed
Outcome
energy use efficiency (EUE)e0
Direction
loweste0

Not reportedComparator

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

“Weed free treatment recorded the highest energy output and lowest energy use efficiency (EUE).”

✓ located verbatim in the source · abstract, characters 477–571 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Isoproturon plus 2,4-D gave highest EUE.

Treatment
Isoproturon + 2, 4-De0
Outcome
EUEe0
Direction
higheste0
Comparator
metribuzine0

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

“Isoproturon + 2, 4-D resulted in the highest EUE and energy productivity followed by metribuzin.”

✓ located verbatim in the source · abstract, characters 572–668 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Isoproturon plus 2,4-D gave highest energy productivity.

Treatment
Isoproturon + 2, 4-De0
Outcome
energy productivitye0
Direction
higheste0
Comparator
metribuzine0

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

“Isoproturon + 2, 4-D resulted in the highest EUE and energy productivity followed by metribuzin.”

✓ located verbatim in the source · abstract, characters 572–668 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Conventional tillage increased weed density versus zero tillage.

Treatment
Conventional tillage (CT)e0
Interactor
weedse0weed
Outcome
densitye0
Direction
increasede0
Comparator
zero tillage (ZT)e0

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

“Conventional tillage (CT) significantly increased density and dry matter of weeds when compared with zero tillage (ZT), thus, ZT increased grain yield of wheat by 2.18% as compared to CT.”

✓ located verbatim in the source · abstract, characters 669–856 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Conventional tillage increased weed dry matter of weeds versus zero tillage.

Treatment
Conventional tillage (CT)e0
Interactor
weedse0weed
Outcome
dry matter of weedse0
Direction
increasede0
Comparator
zero tillage (ZT)e0

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

“Conventional tillage (CT) significantly increased density and dry matter of weeds when compared with zero tillage (ZT), thus, ZT increased grain yield of wheat by 2.18% as compared to CT.”

✓ located verbatim in the source · abstract, characters 669–856 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zero tillage increased wheat grain yield by 2.18% versus conventional tillage.

Treatment
ZTe0
Outcome
grain yield of wheate0
Direction
increasede0
Value
2.18%e0
Comparator
CTe0

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

“Conventional tillage (CT) significantly increased density and dry matter of weeds when compared with zero tillage (ZT), thus, ZT increased grain yield of wheat by 2.18% as compared to CT.”

✓ located verbatim in the source · abstract, characters 669–856 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfosulfuron reduced weed density.

Treatment
Sulfosulfuron (25 g/ ha)e0
Interactor
weedse0weed
Outcome
densitye0
Direction
lowere0
Comparator
isoproturon + 2,4-De0

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

“Sulfosulfuron (25 g/ ha) recorded the lower density and dry weight of weeds and higher weed suppression efficiency (83.43%) fol- lowed by isoproturon + 2,4-D (81.04%).”

✓ located verbatim in the source · abstract, characters 857–1024 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfosulfuron reduced weed dry weight of weeds.

Treatment
Sulfosulfuron (25 g/ ha)e0
Interactor
weedse0weed
Outcome
dry weight of weedse0
Direction
lowere0
Comparator
isoproturon + 2,4-De0

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

“Sulfosulfuron (25 g/ ha) recorded the lower density and dry weight of weeds and higher weed suppression efficiency (83.43%) fol- lowed by isoproturon + 2,4-D (81.04%).”

✓ located verbatim in the source · abstract, characters 857–1024 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfosulfuron gave 83.43% weed suppression efficiency.

Treatment
Sulfosulfuron (25 g/ ha)e0
Interactor
weedse0weed
Outcome
weed suppression efficiencye0
Direction
highere0
Value
83.43%e0
Comparator
isoproturon + 2,4-De0

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

“Sulfosulfuron (25 g/ ha) recorded the lower density and dry weight of weeds and higher weed suppression efficiency (83.43%) fol- lowed by isoproturon + 2,4-D (81.04%).”

✓ located verbatim in the source · abstract, characters 857–1024 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Isoproturon plus 2,4-D gave 81.04% weed suppression efficiency.

Treatment
isoproturon + 2,4-De0
Interactor
weedse0weed
Outcome
weed suppression efficiencye0
Value
81.04%e0

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

“Sulfosulfuron (25 g/ ha) recorded the lower density and dry weight of weeds and higher weed suppression efficiency (83.43%) fol- lowed by isoproturon + 2,4-D (81.04%).”

✓ located verbatim in the source · abstract, characters 857–1024 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

isoprturon + 2,4-D gave higher grain yield under ZT.

Treatment
isoprturon + 2,4-De0
Outcome
grain yielde0
Direction
highere0
Setting
ZTe0

Not reportedComparator

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

“Application of isoprturon + 2,4-D produced significantly higher grain yield in ZT, and sulfosulfuron in CT.”

✓ located verbatim in the source · abstract, characters 1025–1132 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

sulfosulfuron gave higher grain yield under CT.

Treatment
sulfosulfurone0
Outcome
grain yielde0
Direction
highere0
Setting
CTe0

Not reportedComparator

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

“Application of isoprturon + 2,4-D produced significantly higher grain yield in ZT, and sulfosulfuron in CT.”

✓ located verbatim in the source · abstract, characters 1025–1132 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Isoproturon plus 2,4-D gave highest net income.

Treatment
isoproturon + 2,4-De0
Outcome
net incomee0
Direction
higheste0
Value
Rs 17.12 x 103/hae0

Not reportedComparator

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

“Irrespective of tillage, isoproturon + 2,4-D gave the highest net income (Rs 17.12 x 103/ha) and benefit : cost ratio (2.59).”

✓ located verbatim in the source · abstract, characters 1133–1258 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Isoproturon plus 2,4-D gave highest benefit : cost ratio.

Treatment
isoproturon + 2,4-De0
Outcome
benefit : cost ratioe0
Direction
higheste0
Value
2.59e0

Not reportedComparator

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

“Irrespective of tillage, isoproturon + 2,4-D gave the highest net income (Rs 17.12 x 103/ha) and benefit : cost ratio (2.59).”

✓ located verbatim in the source · abstract, characters 1133–1258 · show in text ↑
t0

“wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 29–54 · show in text ↑

isoproturon · growth · Triticum aestivum (wheat)Results differ

10 papers: 7 positive, 3 negative or no effect

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

  1. negative
  2. negative
  3. negative

6 papers more in this group

See all 10 papers →

2,4-D · growth · Triticum aestivum (wheat)Results differ

51 papers: 35 positive, 16 negative or no effect

34 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

47 papers more in this group

See all 51 papers →

isoproturon · yield · Triticum aestivum (wheat)Results differ

89 papers: 75 positive, 14 negative or no effect

74 papers in the same direction as this paper · 7 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative

85 papers more in this group

See all 89 papers →

2,4-D · yield · Triticum aestivum (wheat)Results differ

116 papers: 78 positive, 38 negative or no effect

77 papers in the same direction as this paper · 34 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

112 papers more in this group

See all 116 papers →

2,4-D · pest · Triticum aestivum (wheat)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. negative
  2. positive
See all 3 papers →

isoproturon · pest · Triticum aestivum (wheat)Positive and negative results

4 papers: 1 positive, 3 negative or no effect

3 in the opposite direction

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

2,4-D · weed · Triticum aestivum (wheat)Positive and negative results

66 papers: 64 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

62 papers more in this group

See all 66 papers →

isoproturon · weed · Triticum aestivum (wheat)Positive and negative results

74 papers: 72 positive, 2 negative or no effect

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

  1. positive
  2. negative
  3. negative

70 papers more in this group

See all 74 papers →

8 of 11 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.