Intervention effectmodel-written summary

The 120 kg P, 120 kg K and 20 kg N/ha plus Rhizobium treatment maximized root length, shell fresh weight and pod length.

A claim from Response of vegetable cowpea to P, K and Rhizobium inoculation under Andaman condition · 2001

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 120 kg P, 120 kg K and 20 kg N/ha plus Rhizobium treatment maximized root length, shell fresh weight and pod length.

Treatment
120 kg P, 120 kg K and 20 kg N/ha + Rhizobium inoculatione0
Interactor
RhizobiumRhizobiume0symbiont
Outcome
length of root, fresh weight of shell and length/pode0
Direction
maximume0

Not reportedMaterialGeneCompoundOrgan / stageSecond 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 ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The length of root, fresh weight of shell and length/pod were maximum with 120 kg P, 120 kg K and 20 kg N/ha + Rhizobium inoculation”

✓ located verbatim in the source · abstract, characters 341–473
e1

“cowpea cv. Arka Garima”

✓ located verbatim in the source · abstract, characters 36–58

Title

Response of vegetable cowpea to P, K and Rhizobium inoculation under Andaman condition

Kishan Swaroop; A. N. Ganeshamurthy; Shalika Rathore Indian Journal of Horticulture 2001

Other claims from this paper (2)

Record rev-d65a5393820fc06119e64765e6999a20248d4fdbd4887869dd88deeb4f900cfc · schema claims-v0.9 · position 2 in the model’s answer

Rhizobium · growth · Vigna unguiculata (cowpea)Positive and negative results

29 papers: 26 positive, 3 negative or no effect

25 papers in the same direction as this claim · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Rhizobium inoculation did not significantly affect biomass partitioning coefficients.

    Effect of Rhizobium Sp. Inoculation on N2-Fixing and Photosynthetic Activities of Two Cowpea [Vigna unguiculata (L.) Walp.] Genotypes · 1999

    Opposite direction

  2. negative
    Rhizobium inoculated 15 days before the test pathogen significantly reduced cowpea plant growth compared with inoculation 15 days after the pathogen.

    Effect of Individual, Concomitant and Sequential Inoculations of Rhizobium, Rotylenchulus Reniformis, Meloidogyne Incognita and Rhizoctonia Solani on Cowpea Plant Growth, Disease Development and Nematode Multiplication · 1988 · compared with inoculation 15 days after the test pathogen

    Opposite direction

  3. no effect
    Conventional and reduced-input cowpeas did not differ in root and shoot dry weights, shoot:root ratio, nodulation, nitrogen concentration, or seed yield.

    Root Characteristics and Seed Yields of Cowpeas Grown with and without Added Nitrogen Fertilizer · 1999 · compared with conventional

    No difference from an alternative

  4. positive
    Combined inoculation with 40 kg P/ha significantly increased stem girth to 1.84 cm.

    Influence of phosphorus and bio-fertilizers on growth and yield of cowpea [Vigna unguiculata (L.) Walp.] in acidic soil of NEH region of India · 2017 · compared with rest of treatment combination

    Same direction

  5. positive
    SOY7 inoculation improved legume growth compared with uninoculated controls.

    Genotypic Characterization of Indigenous Rhizobium Strain from Cultivated Cowpea (Vigna unguiculata L.) in Bangladesh · 2017 · compared with uninoculated controls

    Same direction

  6. positive
    Molybdenum plus Rhizobium and PSB gave significantly higher plant height (78.64cm).

    Effect of Molybdenum and Bio-fertilizers on Growth and Yield of Cowpea (Vigna unguiculata L.) · 2022

    Same direction

  7. positive
    Inoculum with or without fertilizer or nitrogen alone increased plant height relative to control.

    Effect of Rhizobium inoculum and N-fertilizer on bio-mass production of cowpea (Vigna unguiculata) forage at different stages of maturity · 2005 · compared with control

    Same direction

  8. positive
    Seaweed extract with or without Rhizobium increased cowpea vegetative growth traits relative to control.

    Synergetic effects of seaweed extract and Rhizobium on cowpea · 2021 · compared with the control

    Same direction

20 papers more in this group

See all 29 papers →

phosphorus · growth · Vigna unguiculata (cowpea)Results differ

56 papers: 52 positive, 4 negative or no effect

51 papers in the same direction as this claim · 4 in the opposite direction

  1. negative
    Leaf area of cowpea was reduced under low P

    Acid phosphatase activity in bean and cowpea plants grown under phosphorus stress · 1994 · compared with 1.0

    Opposite direction

  2. negative
    Phosphorus combined with different doses of manipueira had a negative effect on the initial development (V4 stage) of cowpea in a greenhouse, relative to mineral fertilization.

    Growth and formation of bean phytomass (Vigna unguiculata L.) fertilized with mineral fertilizer and manipueira · 2018 · compared with mineral fertilization

    Opposite direction

  3. no effect
    Plant height and leaf number did not vary with varieties or phosphorus.

    Response of fodder cowpea (Vigna unguiculata) varieties to application of phosphorus · 2001

    Opposite direction

  4. no effect
    Phosphorus did not significantly affect cowpea growth parameters.

    Performance of cowpea varieties under different phosphorus levels and spacing in Tanzania · 2025

    Opposite direction

  5. positive
    Phosphorus increased cowpea shoot dry weight and shoot and grain nitrogen content across locations.

    Growth and Yield Responses of Cowpea to Inoculation and Phosphorus Fertilization in Different Environments · 2017

    Same direction

  6. positive
    Phosphorus application significantly improved cowpea growth.

    Organic acids in the rhizosphere and root characteristics of soybean (Glycine max) and cowpea (Vigna unguiculata) in relation to phosphorus uptake in poor savanna soils · 2008

    Same direction

  7. positive
    Phosphorus application significantly enhanced shoot and root dry weight and total biomass of cowpea genotypes.

    Phosphorus Response Efficiency in Cowpea Genotypes · 2011

    Same direction

  8. positive
    Single super phosphate gave a higher total biomass than phosphate rocks in maize and cowpea.

    Effects of phosphate rock application on dry matter yield and phosphorus recovery of maize and cowpea grown in sequence · 2010 · compared with phosphate rocks (PR)

    Same direction

47 papers more in this group

See all 56 papers →

potassium · growth · Vigna unguiculata (cowpea)Positive and negative results

19 papers: 18 positive, 1 negative or no effect

17 papers in the same direction as this claim · 1 in the opposite direction

  1. negative
    Higher potassium rates with salinity depressed main stem growth relative to salinity alone.

    Growth and gas exchange in the cowpea under saline irrigation and rates of potassium = Crescimento e trocas gasosas de plantas de feijão-caupi sob irrigação salina e doses de potássio · 2015 · compared with isolated effect of salinity

    Opposite direction

  2. positive
    Potassium promoted growth of both mungbean and cowpea under suboptimal soil moisture.

    Influence of Soil Moisture and Fertilizer Potassium on the Vegetative Growth of Mungbean (Vigna radiata L. Wilczek) and Cowpea (Vigna unguiculata L. Walp) · 2001

    Same direction

  3. positive
    Cowpea dry matter increased significantly at 100 ppm humic acid and 300 kg/ha potassium.

    The effect of different levels of humic acid and potassium fertilizer on physiological indices of growth · 2014

    Same direction

  4. positive
    Inoculant followed by P and K fertilizer was effective for cowpea growth in field conditions.

    Combined Application of Inoculant, Phosphorus and Potassium Enhances Cowpea Yield in Savanna Soils · 2020

    Same direction

  5. positive
    T6 produced significantly higher plant height (204.6 cm) in fodder cowpea or postharvest soil.

    Effect of Organic and Inorganic Nutrient Sources on Growth, Yield, Nutrient Uptake and Economics of Fodder Cowpea [Vigna unguiculata (L.) Walp.] · 2020

    Same direction

  6. positive
    Low potassium alone significantly reduced cowpea shoot and leaf biomass.

    Influence of ultraviolet-B enhanced solar radiation on growth and photosynthesis of potassium deficient cowpea seedlings · 1999

    Same directionAbout lacking this nutrient, so it counts the other way round

  7. positive
    Potassium up to 129 kg. h-1 significantly increased plant length to 53.33 cm versus control.

    Response of Three Varieties of Cowpea( Vigna sinensis L.) to Different levels of potassium fertilizer under southern region conditions of Iraq · 2019 · compared with control

    Same direction

  8. positive
    The combined amendments increased plant fresh and dry weight.

    Effect of Feldspar, Compost and Biochar on Cultivating Cowpea (Vigna unguiculata ssp. unguiculata) Plant and Soil Sandy Clay Loam Properties · 2022

    Same direction

10 papers more in this group

See all 19 papers →

3 of 5 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.