Intervention effectmodel-written summary

Soybean intercropping significantly improved maize cob and grain number per cob compared with sole maize.

A claim from Influence of inter-cropping systems and nitrogen levels on the growth and yield of maize · 2014

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Soybean intercropping significantly improved maize cob and grain number per cob compared with sole maize.

Taxon
maizeZea mayse0
Treatment
soybean intercropped maizee0
Outcome
cob, number of grains per cobe0
Direction
improvede0
Comparator
sole maizee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

“The yield attributes of maize including cob, number of grains per cob, shelling per cent and test weight were significantly improved under soybean intercropped maize over sole maize”

✓ located verbatim in the source · abstract, characters 1023–1204

Title

Influence of inter-cropping systems and nitrogen levels on the growth and yield of maize

O.V.S. Thenua; Jasbir Singh Annals of Agricultural Research 2014

Other claims from this paper (4)

Record rev-6bc06bb5d7cd1cb4a0e74799c20f3aaa2531a7899b6d4f19327662a8e2066a5f · schema claims-v0.9 · position 2 in the model’s answer

Glycine max · yield · Zea mays (maize)Positive and negative results

180 papers: 155 positive, 25 negative or no effect

154 papers in the same direction as this claim · 18 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
    Intercropping maize with soybean significantly increased LAI, grain yield, maize equivalents and nitrogen uptake over sole maize.

    Response of nitrogen in maize (Zea mays)-based intercropping system · 1999 · compared with sole crop of maize

    Same directionCited by this paper

  2. no effect
    Soybean presence did not affect maize yield in either season.

    EFFECT OF VARYING MAIZE DENSITIES ON INTERCROPPED MAIZE AND SOYBEAN IN NEPAL · 2005

    Opposite direction

  3. no effect
    Soybean density did not affect maize yield.

    Plant Density and Soybean Maturity in a Soybean‐Maize Intercrop · 1995

    Opposite direction

  4. negative
    Perennial ryegrass planted two weeks later reduced corn yield by 13% at Lamberton.

    Effect of Cover Crops Alfalfa, Red Clover, and Perennial Ryegrass on Soybean Cyst Nematode Population and Soybean and Corn Yields in Minnesota · 2006

    Opposite direction

  5. negative
    Intercropping decreased corn dry matter yield relative to sole corn.

    Corn-soybean intercropping and nitrogen rates affected crop nitrogen and carbon uptake and C:N ratio in upland red soil · 2018 · compared with sole corn

    Opposite direction

  6. negative
    Delayed soybean sowing reduced maize yield.

    Challenges to the Adaptation of Double Cropping Agricultural Systems in Brazil under Changes in Climate and Land Cover · 2020

    Opposite direction

  7. negative
    Soybean-corn systems resulted in at least a $200 ha-1 decrease in 2-year gross margin.

    Economic Comparisons of Crop Rotations Including Alfalfa, Soybean, and Corn1 · 1986

    Opposite direction

  8. negative
    Returning soybean residue significantly decreased corn yields by 1.1 and 2.5 Mg ha −1 in two of twelve site-years.

    Soybean Residue Management and Tillage Effects on Corn Yields and Response to Applied Nitrogen · 2010

    Opposite direction

171 papers more in this group

See all 180 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. positive
    Maize plus frenchbean in a 2:2 arrangement had the highest total grain equivalent yield, 4.87 tonnes/ha.

    Production potential, biological feasibility and economic viability of maize (Zea mays)-based intercropping systems under rainfed conditions of Kashmir valley · 2008

    Same directionCited by this paper

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

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.