Paper · 2023 · Environment, Biodiversity and Soil Security

Eco-friendly treatments for weed control in maize fields intercropped with cowpea

Amany Elhabbak; Amira El-mehy

13
claims
25
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize at three planting distance (10, 15 and 20 cm), on weed control, yield of maize and economic evaluation. Hand hoeing once and twice caused reduction in dry weight of total weeds, and increased weed control efficiency (WCE), yield and yield components of maize and fresh forage yield/fed of cowpea. Highest values were with hand hoeing twice. Interplanting cowpea at 10 and 15 cm, increased percentage of WCE and fresh forage yield/fed of cowpea, irrespective hand hoeing levels, the opposite trend was observed with maize traits. Cowpea planted at 10 cm or 15 cm with using hand hoeing twice decreased the dry weight of total weeds at 45 and 60 days after planting and improved forage yield/fed of cowpea. Sole planting of both crops had the highest yields/fed. Nonetheless, intercropping cowpea + hand hoeing twice had yield and yield components at par with those of sole maize. The highest mean value of LER (1.51 and 1.48) was obtained by growing cowpea at 15 cm and twice time of hoeing. Weed control in maize with applied hand hoeing twice and planted cowpea at 15 cm recorded higher values of gross and net return. It could be concluded that application hand hoeing with growing cowpea as cover crop, at 15cm planting distance was suggested for weed control, increased maize performance and net return.

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Claims 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand hoeing once and twice reduced the dry weight of total weeds in maize fields.

Taxon
maizeZea mayse0
Treatment
Hand hoeing once and twicee1
Interactor
total weedse1weed
Outcome
dry weight of total weedse1
Direction
reductione1
Comparator
zeroe0

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

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e1

“Hand hoeing once and twice caused reduction in dry weight of total weeds”

✓ located verbatim in the source · abstract, characters 266–338 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand hoeing once and twice increased weed control efficiency in maize.

Taxon
maizeZea mayse0
Treatment
Hand hoeing once and twicee1
Outcome
weed control efficiency (WCE)e2
Direction
increasede2
Comparator
zeroe0

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

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e1

“Hand hoeing once and twice caused reduction in dry weight of total weeds”

✓ located verbatim in the source · abstract, characters 266–338 · show in text ↑
e2

“increased weed control efficiency (WCE), yield and yield components of maize and fresh forage yield/fed of cowpea”

✓ located verbatim in the source · abstract, characters 344–457 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand hoeing once and twice increased yield and yield components of maize.

Taxon
maizeZea mayse0
Treatment
Hand hoeing once and twicee1
Outcome
yield and yield components of maizee2
Direction
increasede2
Comparator
zeroe0

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

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e1

“Hand hoeing once and twice caused reduction in dry weight of total weeds”

✓ located verbatim in the source · abstract, characters 266–338 · show in text ↑
e2

“increased weed control efficiency (WCE), yield and yield components of maize and fresh forage yield/fed of cowpea”

✓ located verbatim in the source · abstract, characters 344–457 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand hoeing once and twice increased fresh forage yield per feddan of cowpea.

Treatment
Hand hoeing once and twicee1
Outcome
fresh forage yield/fed of cowpeae2
Direction
increasede2
Comparator
zeroe0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e1

“Hand hoeing once and twice caused reduction in dry weight of total weeds”

✓ located verbatim in the source · abstract, characters 266–338 · show in text ↑
e2

“increased weed control efficiency (WCE), yield and yield components of maize and fresh forage yield/fed of cowpea”

✓ located verbatim in the source · abstract, characters 344–457 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Interplanting cowpea at 10 and 15 cm increased the percentage of WCE and fresh forage yield per feddan of cowpea irrespective of hand hoeing levels.

Treatment
Interplanting cowpea at 10 and 15 cme3
Outcome
percentage of WCE and fresh forage yield/fed of cowpeae3
Direction
increasede3
Qualifier
irrespective hand hoeing levelse3

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“Interplanting cowpea at 10 and 15 cm, increased percentage of WCE and fresh forage yield/fed of cowpea, irrespective hand hoeing levels, the opposite trend was observed with maize traits”

✓ located verbatim in the source · abstract, characters 503–689 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Interplanting cowpea at 10 and 15 cm produced the opposite trend in maize traits, a decrease.

Taxon
maizeZea mayse0
Treatment
Interplanting cowpea at 10 and 15 cme3
Outcome
maize traitse3
Direction
decreaseinferrede3

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

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e3

“Interplanting cowpea at 10 and 15 cm, increased percentage of WCE and fresh forage yield/fed of cowpea, irrespective hand hoeing levels, the opposite trend was observed with maize traits”

✓ located verbatim in the source · abstract, characters 503–689 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cowpea planted at 10 or 15 cm with hand hoeing twice decreased the dry weight of total weeds at 45 and 60 days after planting.

Treatment
Cowpea planted at 10 cm or 15 cm with using hand hoeing twicee4
Interactor
total weedse4weed
Outcome
dry weight of total weedse4
Direction
decreasede4
Qualifier
at 45 and 60 days after plantinge4

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e4

“Cowpea planted at 10 cm or 15 cm with using hand hoeing twice decreased the dry weight of total weeds at 45 and 60 days after planting and improved forage yield/fed of cowpea”

✓ located verbatim in the source · abstract, characters 691–865 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cowpea planted at 10 or 15 cm with hand hoeing twice improved forage yield per feddan of cowpea.

Treatment
Cowpea planted at 10 cm or 15 cm with using hand hoeing twicee4
Outcome
forage yield/fed of cowpeae4
Direction
improvede4

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e4

“Cowpea planted at 10 cm or 15 cm with using hand hoeing twice decreased the dry weight of total weeds at 45 and 60 days after planting and improved forage yield/fed of cowpea”

✓ located verbatim in the source · abstract, characters 691–865 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sole planting of both crops had the highest yield per feddan.

Taxon
maizeZea mayse0
Treatment
Sole plantinge5
Outcome
yields/fede5
Direction
higheste5

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

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e5

“Sole planting of both crops had the highest yields/fed”

✓ located verbatim in the source · abstract, characters 867–921 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Intercropping cowpea with hand hoeing twice gave yield and yield components at par with sole maize.

Taxon
maizeZea mayse6
Treatment
intercropping cowpea + hand hoeing twicee6
Outcome
yield and yield componentse6
Direction
at pare6
Comparator
sole maizee6

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

e6

“intercropping cowpea + hand hoeing twice had yield and yield components at par with those of sole maize”

✓ located verbatim in the source · abstract, characters 936–1039 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Growing cowpea at 15 cm with twice hoeing gave the highest mean LER, 1.51 and 1.48.

Treatment
growing cowpea at 15 cm and twice time of hoeinge7
Outcome
mean value of LERe7
Direction
higheste7
Value
1.51 and 1.48e7

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e7

“The highest mean value of LER (1.51 and 1.48) was obtained by growing cowpea at 15 cm and twice time of hoeing”

✓ located verbatim in the source · abstract, characters 1041–1151 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Weed control in maize with hand hoeing twice and cowpea at 15 cm gave higher gross and net return.

Taxon
maizeZea mayse6
Treatment
applied hand hoeing twice and planted cowpea at 15 cme6
Outcome
gross and net returne6
Direction
highere6

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

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e6

“Weed control in maize with applied hand hoeing twice and planted cowpea at 15 cm recorded higher values of gross and net return”

✓ located verbatim in the source · abstract, characters 1153–1280 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Hand hoeing with cowpea as a cover crop at 15 cm planting distance is suggested for weed control in maize.

Taxon
maizeZea mayse0
Treatment
application hand hoeing with growing cowpea as cover crop, at 15cm planting distancee7
Outcome
weed controle7

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

“Afield study was conducted to investigate the effect of integrated three weed control treatments (zero, once and twice hoeing) and intercropped cowpea with maize”

✓ located verbatim in the source · abstract, characters 0–161 · show in text ↑
e7

“application hand hoeing with growing cowpea as cover crop, at 15cm planting distance was suggested for weed control”

✓ located verbatim in the source · abstract, characters 1309–1424 · show in text ↑

Vigna unguiculata · organism · Zea mays (maize)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

1 paper in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

Vigna unguiculata · yield · Zea mays (maize)Positive and negative results

127 papers: 107 positive, 20 negative or no effect

106 papers in the same direction as this paper · 16 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

123 papers more in this group

See all 127 papers →

intercropping · yield · Zea mays (maize)Positive and negative results

834 papers: 613 positive, 221 negative or no effect

220 papers in the same direction as this paper · 613 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

830 papers more in this group

See all 834 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.