Paper · 1973 · Experimental Agriculture

Effects of Intercropping Maize or Sorghum with Cowpeas, Pigeon Peas or Beans

B. A. C. Enyi

6
claims
6
verbatim quotes
71
citations
1
research areas
—
Not open access

Abstract

SUMMARY Intercropping maize or sorghum with pigeon peas, cowpeas or beans led to a reduction in leaf area indices, fresh weight yield at time of anthesis, straw yield at harvest and grain yield of the cereal crops. In sorghum, pigeon peas and cowpeas had a greater adverse effect on grain yield than beans, but with maize, beans and cowpeas had a more adverse effect on grain yield than pigeon peas. While intercropping maize with either beans or cowpeas decreased total yield of grain (cereal and legume) per hectare, intercropping sorghum with pigeon peas increased total grain yield per hectare.

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Claims 6

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropping maize or sorghum with legumes reduced leaf area indices, fresh weight yield at anthesis and straw yield.

Taxon
maize or sorghumSorghumZea mayse0
Treatment
Intercropping maize or sorghum with pigeon peas, cowpeas or beanse0
Outcome
leaf area indices, fresh weight yield at time of anthesis, straw yield at harveste0
Direction
reductione0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping maize or sorghum with pigeon peas, cowpeas or beans led to a reduction in leaf area indices, fresh weight yield at time of anthesis, straw yield at harvest and grain yield of the cereal crops”

✓ located verbatim in the source · abstract, characters 8–213 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropping maize or sorghum with legumes reduced grain yield of the cereal crops.

Taxon
maize or sorghumSorghumZea mayse0
Treatment
Intercropping maize or sorghum with pigeon peas, cowpeas or beanse0
Outcome
grain yielde0
Direction
reductione0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping maize or sorghum with pigeon peas, cowpeas or beans led to a reduction in leaf area indices, fresh weight yield at time of anthesis, straw yield at harvest and grain yield of the cereal crops”

✓ located verbatim in the source · abstract, characters 8–213 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

In sorghum, pigeon peas and cowpeas had a greater adverse effect on grain yield than beans.

Taxon
sorghumSorghume1
Treatment
pigeon peas and cowpease1
Outcome
grain yielde1
Direction
greater adverse effecte1
Comparator
beanse1

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e1

“In sorghum, pigeon peas and cowpeas had a greater adverse effect on grain yield than beans”

✓ located verbatim in the source · abstract, characters 215–305 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

With maize, beans and cowpeas had a more adverse effect on grain yield than pigeon peas.

Taxon
maizeZea mayse2
Treatment
beans and cowpease2
Outcome
grain yielde2
Direction
more adverse effecte2
Comparator
pigeon pease2

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

e2

“with maize, beans and cowpeas had a more adverse effect on grain yield than pigeon peas”

✓ located verbatim in the source · abstract, characters 311–398 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropping maize with beans or cowpeas decreased total grain yield per hectare.

Taxon
maizeZea mayse3
Treatment
beans or cowpease3
Outcome
total yield of grain (cereal and legume) per hectaree3
Direction
decreasede3

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

e3

“intercropping maize with either beans or cowpeas decreased total yield of grain (cereal and legume) per hectare”

✓ located verbatim in the source · abstract, characters 406–517 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping sorghum with pigeon peas increased total grain yield per hectare.

Taxon
sorghumSorghume4
Treatment
pigeon pease4
Outcome
total grain yield per hectaree4
Direction
increasede4

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e4

“intercropping sorghum with pigeon peas increased total grain yield per hectare”

✓ located verbatim in the source · abstract, characters 519–597 · show in text ↑

Zea mays · yield · SorghumPositive and negative results

9 papers: 5 positive, 4 negative or no effect

3 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

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

19 papers: 14 positive, 5 negative or no effect

4 papers in the same direction as this paper · 14 in the opposite direction

  1. positive
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

intercropping · yield · SorghumResults differ

165 papers: 118 positive, 47 negative or no effect

46 papers in the same direction as this paper · 118 in the opposite direction

  1. positive
  2. positive
  3. positive

161 papers more in this group

See all 165 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 in the opposite direction

  1. positive
  2. no effect
  3. negative

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.