Paper · 2015 · Zenodo (CERN European Organization for Nuclear Research)

Effect Of Cowpea (Vigna Sinensis L.) With Maize (Zea Mays L.) Intercropping On Yield And Its Components

W. A. Hamd Alla; E. M. Shalaby; R. A. Dawood; et al.

13
claims
24
verbatim quotes
45
citations
1
research areas
✓
Open access · cc-by

Abstract

A field experiment was carried out at Arab El- Awammer Research Station, Agric. Res. Center. Assiut Governorate during summer seasons of 2013 and 2014. The present study assessed the effect of cowpea with maize intercropping on yield and its components. The experiment comprised of three treatments (sole cowpea, sole maize and cowpea-maize intercrop). The experimental design was a randomized complete block with four replications. Results indicated that intercropped maize plants with cowpea, exhibited greater potentiality and resulted in higher values of most of the studied criteria viz., plant height, number of ears/plant, number of rows/ear, number of grains/row, grains weight/ear, 100–grain weight and straw and grain yields. Fresh and dry forage yields of cowpea were lower in intercropping with maize than sole. Furthermore, the combined of the two seasons revealed that the total Land Equivalent Ratio (LER) between cowpea and maize was 1.65. The Aggressivity (A) maize was 0.45 and cowpea was -0.45. This showed that maize was the dominant crop, whereas cowpea was the dominated. The Competitive Ratio (CR) indicated that maize more competitive than cowpea, maize was 1.75 and cowpea was 0.57. The Actual Yield Loss (AYL) maize was 0.05 and cowpea was -0.40. The Monetary Advantage Index (MAI) was 2360.80.

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Claims 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the cowpea-maize intercrop, maize had higher plant height, ears per plant and rows per ear than sole maize.

Taxon
maizeZea mayse1
Treatment
intercropped maize plants with cowpeae1
Interactor
cowpeaVigna unguiculatae1other
Outcome
plant height, number of ears/plant, number of rows/eare3
Direction
highere2
Qualifier
most of the studied criteriae2
Comparator
sole maizee0

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

Verbatim

e0

“The experiment comprised of three treatments (sole cowpea, sole maize and cowpea-maize intercrop)”

✓ located verbatim in the source · abstract, characters 254–351 · show in text ↑
e1

“intercropped maize plants with cowpea”

✓ located verbatim in the source · abstract, characters 456–493 · show in text ↑
e2

“resulted in higher values of most of the studied criteria”

✓ located verbatim in the source · abstract, characters 530–587 · show in text ↑
e3

“plant height, number of ears/plant, number of rows/ear”

✓ located verbatim in the source · abstract, characters 594–648 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the cowpea-maize intercrop, maize had higher numbers of grains per row, grain weight per ear and 100-grain weight than sole maize.

Taxon
maizeZea mayse1
Treatment
intercropped maize plants with cowpeae1
Interactor
cowpeaVigna unguiculatae1other
Outcome
number of grains/row, grains weight/ear, 100–grain weighte4
Direction
highere2
Qualifier
most of the studied criteriae2
Comparator
sole maizee0

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

Verbatim

e0

“The experiment comprised of three treatments (sole cowpea, sole maize and cowpea-maize intercrop)”

✓ located verbatim in the source · abstract, characters 254–351 · show in text ↑
e1

“intercropped maize plants with cowpea”

✓ located verbatim in the source · abstract, characters 456–493 · show in text ↑
e2

“resulted in higher values of most of the studied criteria”

✓ located verbatim in the source · abstract, characters 530–587 · show in text ↑
e4

“number of grains/row, grains weight/ear, 100–grain weight”

✓ located verbatim in the source · abstract, characters 650–707 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the cowpea-maize intercrop, maize had higher straw and grain yields than sole maize.

Taxon
maizeZea mayse1
Treatment
intercropped maize plants with cowpeae1
Interactor
cowpeaVigna unguiculatae1other
Outcome
straw and grain yieldse5
Direction
highere2
Qualifier
most of the studied criteriae2
Comparator
sole maizee0

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

Verbatim

e0

“The experiment comprised of three treatments (sole cowpea, sole maize and cowpea-maize intercrop)”

✓ located verbatim in the source · abstract, characters 254–351 · show in text ↑
e1

“intercropped maize plants with cowpea”

✓ located verbatim in the source · abstract, characters 456–493 · show in text ↑
e2

“resulted in higher values of most of the studied criteria”

✓ located verbatim in the source · abstract, characters 530–587 · show in text ↑
e5

“straw and grain yields”

✓ located verbatim in the source · abstract, characters 712–734 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Fresh and dry forage yields of cowpea were lower when intercropped with maize than in sole cowpea.

Treatment
intercropping with maizee6
Interactor
maizeZea mayse6other
Outcome
Fresh and dry forage yieldse6
Direction
lowere6
Comparator
sole cowpeae0

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 ↗
Zea mays
Zea mays · InteractorAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The experiment comprised of three treatments (sole cowpea, sole maize and cowpea-maize intercrop)”

✓ located verbatim in the source · abstract, characters 254–351 · show in text ↑
e6

“Fresh and dry forage yields of cowpea were lower in intercropping with maize than sole”

✓ located verbatim in the source · abstract, characters 736–822 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The total Land Equivalent Ratio between cowpea and maize in the intercrop was 1.65.

Taxon
cowpea and maizeVigna unguiculataZea mayse7
Outcome
Land Equivalent Ratio (LER)e7
Value
1.65e7

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 ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e7

“total Land Equivalent Ratio (LER) between cowpea and maize was 1.65”

✓ located verbatim in the source · abstract, characters 887–954 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maize had an aggressivity of 0.45 in the cowpea-maize intercrop.

Taxon
maizeZea mayse4
Outcome
Aggressivity (A)e4
Value
0.45e4

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

e4

“The Aggressivity (A) maize was 0.45 and cowpea was -0.45”

✓ located verbatim in the source · abstract, characters 956–1012 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cowpea had an aggressivity of -0.45 in the cowpea-maize intercrop.

Outcome
Aggressivity (A)e4
Value
-0.45e4

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

“The Aggressivity (A) maize was 0.45 and cowpea was -0.45”

✓ located verbatim in the source · abstract, characters 956–1012 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Maize was the dominant crop and cowpea the dominated crop in the intercrop.

Taxon
maizeZea mayse5
Outcome
dominant crope5

Not reportedDirection

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

e5

“maize was the dominant crop, whereas cowpea was the dominated”

✓ located verbatim in the source · abstract, characters 1031–1092 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maize had a Competitive Ratio of 1.75 in the intercrop, more competitive than cowpea.

Taxon
maizeZea mayse6
Outcome
Competitive Ratio (CR)e6
Direction
more competitivee6
Value
1.75e6
Comparator
cowpeae6

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

“The Competitive Ratio (CR) indicated that maize more competitive than cowpea, maize was 1.75 and cowpea was 0.57”

✓ located verbatim in the source · abstract, characters 1094–1206 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cowpea had a Competitive Ratio of 0.57 in the intercrop, lower than maize.

Outcome
Competitive Ratio (CR)e6
Direction
lowerinferrede6
Value
0.57e6
Comparator
maizee6

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

e6

“The Competitive Ratio (CR) indicated that maize more competitive than cowpea, maize was 1.75 and cowpea was 0.57”

✓ located verbatim in the source · abstract, characters 1094–1206 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maize had an Actual Yield Loss of 0.05 in the intercrop.

Taxon
maizeZea mayse7
Outcome
Actual Yield Loss (AYL)e7
Value
0.05e7

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

e7

“The Actual Yield Loss (AYL) maize was 0.05 and cowpea was -0.40”

✓ located verbatim in the source · abstract, characters 1208–1271 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cowpea had an Actual Yield Loss of -0.40 in the intercrop.

Outcome
Actual Yield Loss (AYL)e7
Value
-0.40e7

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

e7

“The Actual Yield Loss (AYL) maize was 0.05 and cowpea was -0.40”

✓ located verbatim in the source · abstract, characters 1208–1271 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The Monetary Advantage Index of the cowpea-maize intercrop was 2360.80.

Taxon
Maize (Zea Mays L.)Zea mayst0
Outcome
Monetary Advantage Index (MAI)e0
Value
2360.80e0

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

t0

“Maize (Zea Mays L.)”

✓ located verbatim in the source · title, characters 42–61 · show in text ↑
e0

“The Monetary Advantage Index (MAI) was 2360.80”

✓ located verbatim in the source · abstract, characters 1273–1319 · show in text ↑

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

27 papers: 18 positive, 9 negative or no effect

8 papers in the same direction as this paper · 18 in the opposite direction

  1. positive
  2. positive
  3. positive

23 papers more in this group

See all 27 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. positive
  3. negative

123 papers more in this group

See all 127 papers →

intercropping · yield · Vigna unguiculata (cowpea)Results differ

103 papers: 63 positive, 40 negative or no effect

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

  1. positive
  2. positive
  3. positive

99 papers more in this group

See all 103 papers →

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

834 papers: 613 positive, 221 negative or no effect

612 papers in the same direction as this paper · 181 in the opposite direction · 40 reporting no difference from an alternative

  1. no effect
  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.