Intervention effectmodel-written summary

Tannery sludge compost increased nitrogen accumulation in cowpea.

A claim from Growth, nodulation and nitrogen fixation of cowpea in soils amended with composted tannery sludge · 2011

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tannery sludge compost increased nitrogen accumulation in cowpea.

Treatment
application of TSCe0
Outcome
N accumulatione0
Direction
increasede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

“The application of TSC increased N accumulation in the cowpea plants.”

✓ located verbatim in the source · abstract, characters 784–853

Title

Growth, nodulation and nitrogen fixation of cowpea in soils amended with composted tannery sludge

Joseany Andrade Santos; Luís Alfredo Pinheiro Leal Nunes; Wanderley José de Melo; et al. Revista Brasileira de Ciência do Solo 2011. doi:10.1590/s0100-06832011000600003

Other claims from this paper (4)

Record rev-0b47211c083cbf8a5030b35713e74d3ca42cf99746fad901a39d806e713ab9dd · schema claims-v0.9 · position 4 in the model’s answer

fertilization · nutrient: content · Vigna unguiculata (cowpea)Positive and negative results

78 papers: 71 positive, 7 negative or no effect

70 papers in the same direction as this claim · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
    Combined N and P fertilization reduced grain Zn content significantly at 60P

    Iron and zinc levels in Vigna unguiculata (L.) Walp under varying phosphorus and fixed nitrogen treatment conditions · 2018

    Opposite direction

  2. negative
    NPK 15:15:15 reduced soil calcium saturation from 25% to 21%.

    The Reactions of Common Chemical Fertilizers in An Ultisol and Their Effects on Cowpea Performance · 2019

    Opposite direction

  3. no effect
    Grain nitrogen accumulation did not differ among seven rhizobia inoculations, mineral nitrogen fertilization and controls.

    Strategies for Improving Cowpea Grain Yield in the Eastern Amazon: Biological Nitrogen Fixation, Phosphorus Nutrition, and Molybdenum Seed Enrichment · 2023 · compared with the control (without inoculation and N fertilization)

    Opposite direction

  4. negative
    NPK plus FYM resulted in lesser cowpea nutrient concentration and uptake.

    Residual Effect of Enzyme Industrial Waste-Municipal Solid Waste Composts Application on Growth, Yield, Content and Uptake of Nutrients by Cowpea · 2018

    Opposite direction

  5. no effect
    Phosphate fertilization had no substantial effect on lead uptake by cowpea.

    EFFECTS OF CALCIUM HYDROGEN PHOSPHATE ON LEAD UPTAKE BY COWPEA (VIGNA UNGUICULATA) · 2020

    Opposite direction

  6. negative
    NPK 15:15:15 reduced calcium saturation from 25% to 21%.

    The Reactions of Common Chemical Fertilizers in An Ultisol and Their Effects on Cowpea Performance · 2019 · compared with 25%

    Opposite direction

  7. no effect
    Nitrogen content and uptake in seed and straw at 6.0 t/ha vermicompost were statistically at par with 4.0 t/ha vermicompost.

    Effect of Vermicompost and Biofertilizers on Yield Attributes and Nutrient Content and it’s their Uptake of Cowpea [Vigna unguiculata (L.)Walp.] · 2017 · compared with 4.0 t/ha vermicompost

    No difference from an alternative

  8. positive
    Plants receiving inoculant and phosphorus had consistently high shoot nitrogen content compared with non-inoculated controls.

    Growth and Yield Responses of Cowpea to Inoculation and Phosphorus Fertilization in Different Environments · 2017 · compared with non-inoculated control plants

    Same direction

69 papers more in this group

See all 78 papers →

organic · nutrient: content · Vigna unguiculata (cowpea)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this claim

  1. positive
    All organic amendments produced better cowpea nutrient uptake than chemical fertilizer and control.

    Effects of organic amendments in comparison with chemical fertilizer on cowpea growth · 2015 · compared with chemical fertilizer and control

    Same direction

  2. positive
    P uptake by sorghum and cowpea was significantly higher with 6 t crop residue per hectare than with other residue treatments

    Effect of Eighteen Years of Continuous Crop Residue Application on Crop Yields, Soil P Fractions, and Crop P Uptake in Conservation Tillage Under Semi-Arid Tropical Rainfed Conditions · 2024 · compared with the other crop residue treatments

    Same direction

See all 3 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.