Paper · 2022 · Crop Research

Evaluation of weed management practices on weed dynamics and yield of maize (Zea mays L.)

MAHESWARA REDDY BADA; S. ELANKAVI; G. BARADHAN; et al.

5
claims
10
verbatim quotes
5
citations
2
research areas
—
Not open access

Abstract

Maize (Zea mays L.) is the world's most adaptable and rapidly growing food crop. Weed infestation is a major issue in maize, particularly during the early stages of growth, so weed control is critical to reducing competition with the maize crop. Therefore, a field experiment was undertaken in farmer's field at Chidambaram, Tamil Nadu, during March- June 2021 to determine the impact of various weed management strategies on weed dynamics and yield of maize. The experiment was laid out in randomized block design with three replications and nine treatments viz., atrazine, topramezone, tembotrione, halo sulfuron methyl and hand weeding. According to findings, hand weeding twice at 15 and 30 DAS had the best weed control efficiency and highest grain yield (6.73 t/ha) but it was comparable to atrazine (P. E.) @ 1 kg a.i /ha on 3 DAS+Topramezone (PoE) @ 36.5 g a.i./ha on 18 DAS (6.63 t/ha) and atrazine (P. E.) @ 1 kg a.i./ha on 3 DAS+Tembotrione (PoE) @ 120 g a.i./ha on 18 DAS (6.55 t/ha). Based on the results of the experiments, we conclude that sequential application of pre- and post-emergence herbicides resulted in the highest weed control efficiency and grain yield, as hand weeding twice at 15 and 30 DAS is cumbersome and expensive.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Twice hand weeding gave the best weed control efficiency.

Taxon
MaizeZea mayst0
Treatment
hand weeding twice at 15 and 30 DASe0
Interactor
weede0weed
Outcome
weed control efficiencye0
Direction
beste0

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

e0

“hand weeding twice at 15 and 30 DAS had the best weed control efficiency and highest grain yield (6.73 t/ha) but it was comparable to atrazine (P. E.) @ 1 kg a.i /ha on 3 DAS+Topramezone (PoE) @ 36.5 g a.i./ha on 18 DAS (6.63 t/ha) and atrazine (P. E.) @ 1 kg a.i./ha on 3 DAS+Tembotrione (PoE) @ 120 g a.i./ha on 18 DAS (6.55 t/ha)”

✓ located verbatim in the source · abstract, characters 663–995 · show in text ↑
t0

“Maize”

✓ located after whitespace/quote normalisation · title, characters 70–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Twice hand weeding gave the highest grain yield of 6.73 t/ha.

Taxon
MaizeZea mayst0
Treatment
hand weeding twice at 15 and 30 DASe0
Interactor
weede0weed
Outcome
grain yielde0
Direction
higheste0
Value
6.73 t/hae0

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

e0

“hand weeding twice at 15 and 30 DAS had the best weed control efficiency and highest grain yield (6.73 t/ha) but it was comparable to atrazine (P. E.) @ 1 kg a.i /ha on 3 DAS+Topramezone (PoE) @ 36.5 g a.i./ha on 18 DAS (6.63 t/ha) and atrazine (P. E.) @ 1 kg a.i./ha on 3 DAS+Tembotrione (PoE) @ 120 g a.i./ha on 18 DAS (6.55 t/ha)”

✓ located verbatim in the source · abstract, characters 663–995 · show in text ↑
t0

“Maize”

✓ located after whitespace/quote normalisation · title, characters 70–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Atrazine followed by topramezone yielded 6.63 t/ha, comparable to hand weeding.

Taxon
MaizeZea mayst0
Treatment
atrazine (P. E.) @ 1 kg a.i /ha on 3 DAS+Topramezone (PoE) @ 36.5 g a.i./ha on 18 DASe0
Interactor
weede0weed
Outcome
grain yielde0
Direction
comparablee0
Value
6.63 t/hae0
Comparator
hand weeding twice at 15 and 30 DASe0

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

e0

“hand weeding twice at 15 and 30 DAS had the best weed control efficiency and highest grain yield (6.73 t/ha) but it was comparable to atrazine (P. E.) @ 1 kg a.i /ha on 3 DAS+Topramezone (PoE) @ 36.5 g a.i./ha on 18 DAS (6.63 t/ha) and atrazine (P. E.) @ 1 kg a.i./ha on 3 DAS+Tembotrione (PoE) @ 120 g a.i./ha on 18 DAS (6.55 t/ha)”

✓ located verbatim in the source · abstract, characters 663–995 · show in text ↑
t0

“Maize”

✓ located after whitespace/quote normalisation · title, characters 70–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Atrazine followed by tembotrione yielded 6.55 t/ha, comparable to hand weeding.

Taxon
MaizeZea mayst0
Treatment
atrazine (P. E.) @ 1 kg a.i./ha on 3 DAS+Tembotrione (PoE) @ 120 g a.i./ha on 18 DASe0
Interactor
weede0weed
Outcome
grain yielde0
Direction
comparablee0
Value
6.55 t/hae0
Comparator
hand weeding twice at 15 and 30 DASe0

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

e0

“hand weeding twice at 15 and 30 DAS had the best weed control efficiency and highest grain yield (6.73 t/ha) but it was comparable to atrazine (P. E.) @ 1 kg a.i /ha on 3 DAS+Topramezone (PoE) @ 36.5 g a.i./ha on 18 DAS (6.63 t/ha) and atrazine (P. E.) @ 1 kg a.i./ha on 3 DAS+Tembotrione (PoE) @ 120 g a.i./ha on 18 DAS (6.55 t/ha)”

✓ located verbatim in the source · abstract, characters 663–995 · show in text ↑
t0

“Maize”

✓ located after whitespace/quote normalisation · title, characters 70–75 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors conclude sequential herbicides provide high weed control efficiency and yield given the burden of hand weeding.

Taxon
MaizeZea mayst0
Interactor
weede0weed
Outcome
sequential application of pre- and post-emergence herbicidese0

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

e0

“sequential application of pre- and post-emergence herbicides resulted in the highest weed control efficiency and grain yield, as hand weeding twice at 15 and 30 DAS is cumbersome and expensive”

✓ located verbatim in the source · abstract, characters 1055–1247 · show in text ↑
t0

“Maize”

✓ located after whitespace/quote normalisation · title, characters 70–75 · show in text ↑

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 →

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.