Intervention effectmodel-written summary

All intercropping treatments had high land equivalent ratios indicating yield advantage over sole cropping.

A claim from Influence of Maize and Cowpea Mixed Sowing on Forage Production and Quality Under Various Tillage Practices · 2016

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All intercropping treatments had high land equivalent ratios indicating yield advantage over sole cropping.

Taxon
Maize and CowpeaVigna unguiculataZea mayst0
Treatment
intercropping treatmente0
Outcome
land equivalent ratio (LER)e0
Direction
highe0
Comparator
sole croppinge0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

e0

“In all intercropping treatment land equivalent ratio (LER) was recorded high indicating that yield advantages for intercropping as compared to sole cropping”

✓ located verbatim in the source · abstract, characters 822–978
t0

“Maize and Cowpea”

✓ located verbatim in the source · title, characters 13–29

Title

Influence of Maize and Cowpea Mixed Sowing on Forage Production and Quality Under Various Tillage Practices

Muhammad Kamran Khan; Shahid Ibni Zamir; Ihtisham Ul Haq; et al. Transylvanian Review 2016

Other claims from this paper (6)

Record rev-ea56141d365d139dfb1b636bd97025e64c60409cbc82b071e7f272477aad9c9f · schema claims-v0.9 · position 4 in the model’s answer

intercropping · yield · Vigna unguiculata (cowpea)Results differ

103 papers: 63 positive, 40 negative or no effect

62 papers in the same direction as this claim · 33 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
    Intercrop cowpea yields were less than sole cowpea yields at all sowings.

    Relative Sowing Time and Density of Component Crops in a Maize/Cowpea Intercrop System · 1987 · compared with sole cowpea yields

    Opposite direction

  2. negative
    Intercropping reduced cowpea seed yield from 3195 to 2170 kg ha −1 in 1981.

    Cassava‐Cowpea and Cassava‐Peanut Intercropping. I. Yield and Land Use Efficiency]1 · 1986

    Opposite direction

  3. no effect
    Cowpea grain yield was not significantly affected by intercropping.

    Effect Of Cowpea Planting Density On Growth, Yield And Productivity Of Component Crops In Cowpea/Cassava Intercropping System · 2008

    Opposite direction

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

    Effect Of Cowpea (Vigna Sinensis L.) With Maize (Zea Mays L.) Intercropping On Yield And Its Components · 2015 · compared with sole cowpea

    Opposite direction

  5. negative
    Intercropping reduced cowpea grain yield by up to 55%.

    Response of tomato and okra to nitrogen fertilizer in sole cropping and intercropping with cowpea · 1991

    Opposite direction

  6. no effect
    Cowpea density had no significant effect on harvest indices.

    Effects of Intercrop Population Density and Row Orientation on Growth and Yields of Sorghum - Cowpea Cropping Systems in Semi Arid Rongai, Kenya · 2014

    Opposite direction

  7. negative
    Sole crops had more pods per plant than intercrops.

    The effect of intercropping maize with cowpea and lablab on crop yield · 2013 · compared with sole crops

    Opposite direction

  8. negative
    Hedgerow intercropping gave lower cowpea yields than a crop rotation with legume cover crops.

    Crop yield, C and N balance of three types of cropping systems on an Ultisol in Northern Lampung · 2000 · compared with a crop rotation with legume cover crops

    Opposite direction

94 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 claim · 181 in the opposite direction · 40 reporting no difference from an alternative

  1. no effect
    When intercropped with beans, the yields of organic and conventional systems were similar.

    Productivity, profitability and partial nutrient balance in maize-based conventional and organic farming systems in Kenya · 2016

    Opposite direction

  2. no effect
    Seeding intercrops when corn was 0.15 to 0.30 m high did not change first-year corn grain yield.

    Contributions of Ground Cover, Dry Matter, and Nitrogen from Intercrops and Cover Crops in a Corn Polyculture System1 · 1987

    Opposite direction

  3. negative
    At 120 kg N ha−1, legume intercrops reduced maize yields by 18 to 31%.

    Relay‐Intercropping of Sunnhemp and Cowpea into a Smallholder Maize System in Zimbabwe · 2000

    Opposite direction

  4. no effect
    Intercropping did not significantly affect maize grain yield in 2007.

    Effect of Intercropping and Crop Arrangement on Yield and Productivity of Late Season Maize/soybean Mixtures in the Humid Environment of South Southern Nigeria · 2012

    Opposite direction

  5. negative
    Intercropping reduced maize grain yield by 23–70%.

    Yield stability of cassava, maize, soya bean and cowpea intercrops · 2003 · compared with sole crop

    Opposite direction

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

    Effects of Intercropping Maize or Sorghum with Cowpeas, Pigeon Peas or Beans · 1973

    Opposite direction

  7. negative
    White lupine intercropping inhibited maize growth and yield.

    Growth and phosphorus uptake of maize cultivated alone, in mixed culture with other crops or after incorporation of their residues · 2003

    Opposite direction

  8. negative
    In maize/beans intercrop, maize yield was depressed by 15% compared with sole maize.

    The effect of planting combinations and weeding on the growth and yield of component crops of maize/bean and maize/pumpkin intercrops · 2002 · compared with its sole yield

    Opposite direction

825 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.