Paper · 2013 · DOAJ (DOAJ: Directory of Open Access Journals)

Integration of Chemical and Manual Weed Management on Weed Density, Yield and Production Economics of Lentil (Lens culinaris Medikus)

Jamkhogin Lhungdim; Yogesh Kumar Singh; R. Pd. Singh

18
claims
38
verbatim quotes
5
citations
2
research areas
✓
Open access · cc-by-sa

Abstract

A field study was conducted during rabi, 2010-11 and 2011-12 at Agricultural Research farm, BHU, Varanasi (U.P.) where five herbicides either as sole, integrated with mechanical weeding (MW) or sequentially applied were evaluated for efficacies of the herbicides on controlling weeds, their influences on yield and production economics on lentil (Lens culinaris Medikus) variety HUL 57. Results revealed that, two hand weeding (HW) was the most effective method for weed control next to weed free. At 60 DAS however, lowest density and dry matter accumulation of all weed species were recorded with two hand weeding at 30 and 45 DAS followed by sequential/continuous application of Pendimethalin (PE) and Imazethapyr (post-emergence/POE) that remained statistically at par with Pendimethalin+MW in the case of BLWs and grasses and Chlorimuron ethyl+MW in respect of sedges. Maximum weed control efficiency (WCE) was achieved under two HW (83%) followed by Pendimethalin+MW at 45 DAS and continuous application of Pendimethalin+Imazethapyr (76% each). However, significantly highest yield (1365 kg ha-1), highest pods plant-1 (66.07), seeds pod-1 (1.94) and nodules plant-1 (8.20) were recorded under Pendimethalin+MW which was comparable and significantly not different from Pendimethalin+Imazethapyr @ 37.5 g a.i. ha-1. Among sole applications, Pendimethalin and Pendimethalin+Imazethapyr (pre-mixed) significantly suppressed broadleaved weeds but poorly controlled the sedges and grasses though it was better than control. In the economic factor, Pendimethalin+MW with highest net return and benefit:cost ratio (` 47521 ha-1 and 3.15) and lowest weed index (4.51) was comparatively better than all the treatments including control. This integrated treatment was found as the most profit-oriented and sustainable weed management system in lentil.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-sa. 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 18

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Two hand weedings were the most effective weed control method in lentil, next only to the weed-free treatment.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
two hand weeding (HW)e0
Outcome
weed controle0
Direction
most effectivee0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“two hand weeding (HW) was the most effective method for weed control next to weed free”

✓ located verbatim in the source · abstract, characters 410–496 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Weed control efficiency was maximum, 83%, under two hand weedings in lentil.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
two HWe0
Outcome
weed control efficiency (WCE)e0
Direction
Maximume0
Value
83%e0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Maximum weed control efficiency (WCE) was achieved under two HW (83%)”

✓ located verbatim in the source · abstract, characters 874–943 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pendimethalin+MW at 45 DAS gave a weed control efficiency of 76% in lentil, below that of two hand weedings.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MW at 45 DASe0
Outcome
weed control efficiency (WCE)e0
Direction
lowerinferrede0
Value
76%e0
Comparator
two HWe0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Maximum weed control efficiency (WCE) was achieved under two HW (83%) followed by Pendimethalin+MW at 45 DAS and continuous application of Pendimethalin+Imazethapyr (76% each)”

✓ located verbatim in the source · abstract, characters 874–1049 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Continuous application of Pendimethalin+Imazethapyr gave a weed control efficiency of 76% in lentil, below that of two hand weedings.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
continuous application of Pendimethalin+Imazethapyre0
Outcome
weed control efficiency (WCE)e0
Direction
lowerinferrede0
Value
76%e0
Comparator
two HWe0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Maximum weed control efficiency (WCE) was achieved under two HW (83%) followed by Pendimethalin+MW at 45 DAS and continuous application of Pendimethalin+Imazethapyr (76% each)”

✓ located verbatim in the source · abstract, characters 874–1049 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 60 DAS, two hand weedings at 30 and 45 DAS gave the lowest density and dry matter accumulation of all weed species in lentil.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
two hand weeding at 30 and 45 DASe0
Interactor
weed speciese0weed
Outcome
density and dry matter accumulatione0
Direction
loweste0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“lowest density and dry matter accumulation of all weed species were recorded with two hand weeding at 30 and 45 DAS”

✓ located verbatim in the source · abstract, characters 517–632 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Sequential or continuous Pendimethalin (PE) and Imazethapyr (POE) application was statistically at par with Pendimethalin+MW for density and dry matter of broadleaved weeds and grasses.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
sequential/continuous application of Pendimethalin (PE) and Imazethapyr (post-emergence/POE)e0
Interactor
weed speciese0weed
Outcome
density and dry matter accumulatione0
Direction
statistically at pare0
Qualifier
BLWs and grassese0
Comparator
Pendimethalin+MWe0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“lowest density and dry matter accumulation of all weed species were recorded with two hand weeding at 30 and 45 DAS followed by sequential/continuous application of Pendimethalin (PE) and Imazethapyr (post-emergence/POE) that remained statistically at par with Pendimethalin+MW in the case of BLWs and grasses”

✓ located verbatim in the source · abstract, characters 517–826 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

For sedges, sequential or continuous Pendimethalin (PE) and Imazethapyr (POE) application was statistically at par with Chlorimuron ethyl+MW for weed density and dry matter.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
sequential/continuous application of Pendimethalin (PE) and Imazethapyr (post-emergence/POE)e0
Interactor
weed speciese0weed
Outcome
density and dry matter accumulatione0
Direction
statistically at pare0
Qualifier
sedgese0
Comparator
Chlorimuron ethyl+MWe0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“lowest density and dry matter accumulation of all weed species were recorded with two hand weeding at 30 and 45 DAS followed by sequential/continuous application of Pendimethalin (PE) and Imazethapyr (post-emergence/POE) that remained statistically at par with Pendimethalin+MW in the case of BLWs and grasses and Chlorimuron ethyl+MW in respect of sedges”

✓ located verbatim in the source · abstract, characters 517–872 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pendimethalin+MW gave the significantly highest lentil yield, 1365 kg ha-1.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
yielde0
Direction
higheste0
Value
1365 kg ha-1e0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“significantly highest yield (1365 kg ha-1), highest pods plant-1 (66.07), seeds pod-1 (1.94) and nodules plant-1 (8.20) were recorded under Pendimethalin+MW”

✓ located verbatim in the source · abstract, characters 1060–1216 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pendimethalin+MW gave the highest number of pods per plant, 66.07, in lentil.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
pods plant-1e0
Direction
higheste0
Value
66.07e0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“significantly highest yield (1365 kg ha-1), highest pods plant-1 (66.07), seeds pod-1 (1.94) and nodules plant-1 (8.20) were recorded under Pendimethalin+MW”

✓ located verbatim in the source · abstract, characters 1060–1216 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pendimethalin+MW gave the highest number of seeds per pod, 1.94, in lentil.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
seeds pod-1e0
Direction
higheste0
Value
1.94e0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“significantly highest yield (1365 kg ha-1), highest pods plant-1 (66.07), seeds pod-1 (1.94) and nodules plant-1 (8.20) were recorded under Pendimethalin+MW”

✓ located verbatim in the source · abstract, characters 1060–1216 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pendimethalin+MW gave the highest number of nodules per plant, 8.20, in lentil.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
nodules plant-1e0
Direction
higheste0
Value
8.20e0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“significantly highest yield (1365 kg ha-1), highest pods plant-1 (66.07), seeds pod-1 (1.94) and nodules plant-1 (8.20) were recorded under Pendimethalin+MW”

✓ located verbatim in the source · abstract, characters 1060–1216 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Lentil yield and yield attributes under Pendimethalin+MW were comparable to and not significantly different from Pendimethalin+Imazethapyr at 37.5 g a.i. ha-1.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
yielde0
Direction
comparablee0
Comparator
Pendimethalin+Imazethapyr @ 37.5 g a.i. ha-1e0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“significantly highest yield (1365 kg ha-1), highest pods plant-1 (66.07), seeds pod-1 (1.94) and nodules plant-1 (8.20) were recorded under Pendimethalin+MW which was comparable and significantly not different from Pendimethalin+Imazethapyr @ 37.5 g a.i. ha-1”

✓ located verbatim in the source · abstract, characters 1060–1319 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Among sole applications, Pendimethalin and pre-mixed Pendimethalin+Imazethapyr significantly suppressed broadleaved weeds in lentil.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin and Pendimethalin+Imazethapyr (pre-mixed)e0
Interactor
broadleaved weedse0weed
Outcome
broadleaved weedse0
Direction
suppressede0

Not reportedComparator

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Among sole applications, Pendimethalin and Pendimethalin+Imazethapyr (pre-mixed) significantly suppressed broadleaved weeds”

✓ located verbatim in the source · abstract, characters 1321–1444 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sole Pendimethalin and pre-mixed Pendimethalin+Imazethapyr controlled sedges and grasses poorly, though better than the control.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin and Pendimethalin+Imazethapyr (pre-mixed)e0
Interactor
sedges and grassese0weed
Outcome
sedges and grassese0
Direction
poorly controllede0
Comparator
controle0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Among sole applications, Pendimethalin and Pendimethalin+Imazethapyr (pre-mixed) significantly suppressed broadleaved weeds but poorly controlled the sedges and grasses though it was better than control”

✓ located verbatim in the source · abstract, characters 1321–1523 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pendimethalin+MW gave the highest net return in lentil, 47521 ha-1, better than all treatments including the control.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
net returne0
Direction
higheste0
Value
47521 ha-1e0
Comparator
all the treatments including controle1

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Pendimethalin+MW with highest net return and benefit:cost ratio (` 47521 ha-1 and 3.15) and lowest weed index (4.51)”

✓ located verbatim in the source · abstract, characters 1549–1665 · show in text ↑
e1

“all the treatments including control”

✓ located verbatim in the source · abstract, characters 1696–1732 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pendimethalin+MW gave the highest benefit:cost ratio in lentil, 3.15, better than all treatments including the control.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
benefit:cost ratioe0
Direction
higheste0
Value
3.15e0
Comparator
all the treatments including controle1

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Pendimethalin+MW with highest net return and benefit:cost ratio (` 47521 ha-1 and 3.15) and lowest weed index (4.51)”

✓ located verbatim in the source · abstract, characters 1549–1665 · show in text ↑
e1

“all the treatments including control”

✓ located verbatim in the source · abstract, characters 1696–1732 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pendimethalin+MW gave the lowest weed index in lentil, 4.51, better than all treatments including the control.

Taxon
Lens culinaris MedikusLens culinarist0
Treatment
Pendimethalin+MWe0
Outcome
weed indexe0
Direction
loweste0
Value
4.51e0
Comparator
all the treatments including controle1

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

t0

“Lens culinaris Medikus”

✓ located verbatim in the source · title, characters 110–132 · show in text ↑
e0

“Pendimethalin+MW with highest net return and benefit:cost ratio (` 47521 ha-1 and 3.15) and lowest weed index (4.51)”

✓ located verbatim in the source · abstract, characters 1549–1665 · show in text ↑
e1

“all the treatments including control”

✓ located verbatim in the source · abstract, characters 1696–1732 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude that the integrated Pendimethalin+MW treatment was the most profit-oriented and sustainable weed management system in lentil.

Taxon
lentilLens culinarise0
Outcome
most profit-oriented and sustainable weed management systeme0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“This integrated treatment was found as the most profit-oriented and sustainable weed management system in lentil”

✓ located verbatim in the source · abstract, characters 1734–1846 · show in text ↑

pendimethalin · organism · Lens culinaris (lentil)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

Imazethapyr · yield · Lens culinaris (lentil)Positive and negative results

18 papers: 15 positive, 3 negative or no effect

2 papers in the same direction as this paper · 15 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

14 papers more in this group

See all 18 papers →

pendimethalin · yield · Lens culinaris (lentil)Positive and negative results

24 papers: 22 positive, 2 negative or no effect

1 paper in the same direction as this paper · 22 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

20 papers more in this group

See all 24 papers →

pendimethalin · weed · Lens culinaris (lentil)Results agree

14 papers: 14 positive, 0 negative or no effect

13 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

herbicide · yield · Lens culinaris (lentil)Results differ

47 papers: 36 positive, 11 negative or no effect

35 papers in the same direction as this paper · 8 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. positive
  3. no effect

43 papers more in this group

See all 47 papers →

herbicide · symbiosis · Lens culinaris (lentil)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

3 papers more in this group

See all 7 papers →

herbicide · weed · Lens culinaris (lentil)Positive and negative results

24 papers: 23 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

20 papers more in this group

See all 24 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.