Intervention effectmodel-written summary

Eggshell powder significantly improved tomato plant growth relative to P-deficient and P-sufficient controls.

A claim from Preliminary evaluation of eggshells as a source of phosphate on hydroponically grown tomato (Solanum lycopersicum L.) seedlings · 2020

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Eggshell powder significantly improved tomato plant growth relative to P-deficient and P-sufficient controls.

Treatment
eggshell powdere0
Outcome
plant growthe0
Direction
improvede0
Comparator
P-deficient controle0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The addition of eggshell powder to the nutrient solution significantly improved plant growth and increased protein and chlorophyll concentration, not only with respect to P-deficient control, but also with P-sufficient ones.”

✓ located verbatim in the source · abstract, characters 1062–1286
t0

“tomato (Solanum lycopersicum L.) seedlings”

✓ located verbatim in the source · title, characters 85–127

Title

Preliminary evaluation of eggshells as a source of phosphate on hydroponically grown tomato (Solanum lycopersicum L.) seedlings

S. Astolfi; F. Caddeu; E. Coppa; et al. Journal of Plant Nutrition 2020. doi:10.1080/01904167.2020.1750641

Other claims from this paper (2)

Record rev-432a99a023a4cbc8cbdd706d1505cad1073f9560614e3ee31257c2334adc6e1a · schema claims-v0.9 · position 1 in the model’s answer

botanical · growth · Solanum lycopersicum (tomato)Positive and negative results

291 papers: 203 positive, 88 negative or no effect

202 papers in the same direction as this claim · 87 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Removal of yeast extract had no significant effect on the growth-promoting traits of CB7.

    Efficiency of plant growth‐promoting P‐solubilizing Bacillus circulans CB7 for enhancement of tomato growth under net house conditions · 2014

    Opposite direction

  2. negative
    All cover crop extracts initially delayed tomato germination.

    Comparison of the Allelopathic Potential of Leguminous Summer Cover Crops: Cowpea, Sunn Hemp, and Velvetbean · 2007

    Opposite direction

  3. negative
    Callicarpa leachate inhibited tomato radicle growth by 47%.

    Allelochemical stress produced by the aqueous leachate of Callicarpa acuminata: effects on roots of bean, maize, and tomato · 2002

    Opposite direction

  4. negative
    Increasing Mikania extract concentrations progressively decreased germination, radicle length and fresh weight of tomato.

    Effects of aqueous extracts and decomposition of Mikania micrantha H.B.K. debris on selected agronomic crops · 2002

    Opposite direction

  5. no effect
    Treating tomato seeds with the three retested extracts had no effect on seedling vigor, height, or weight.

    The effect of plant extracts as seed treatments to control bacterial leaf spot of tomato in Tanzania · 2012

    Opposite direction

  6. no effect
    The essential oils had no remarkable effect on tomato germination and growth.

    In vitro antifungal activity of four chemotypes of Lippia alba (Verbenaceae) essential oils against Alternaria solani (Pleosporeaceae) isolates · 2016

    Opposite direction

  7. negative
    tomato germination was reduced by 100% by sunnhemp leaf extract.

    Allelopathic Effects of Sunnhemp (Crotalaria juncea L.) on Germination of Vegetables and Weeds · 2012 · compared with the control

    Opposite direction

  8. negative
    Cold and hot pine substrate extracts reduced tomato germination and radicle growth.

    Laboratory bioassay and greenhouse evaluation of a pine tree substrate used as a container substrate · 2009

    Opposite direction

282 papers more in this group

See all 291 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.