Intervention effectmodel-written summary

A 60 kg ha-1 P2O5 dose increased commercial-root yield.

A claim from Production and physical quality of sweet potatoes under phosphate fertilization · 2024

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 60 kg ha-1 P2O5 dose increased commercial-root yield.

Taxon
sweet potatoesIpomoea batatast0
Material
Paranáe1
Treatment
60 kg ha-1 of P2O5e0
Outcome
yield of commercial rootse0
Direction
increasese0

Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The P doses influenced the production characteristics, mainly at the dose of 60 kg ha-1 of P2O5, which promoted increases in the yield of commercial roots.”

✓ located verbatim in the source · abstract, characters 1151–1306
e1

“The treatments consisted of five doses of P (0; 60; 120; 180 and 240 kg ha-1 of P2O5) via fertigation and tested on the sweet potato cultivar Paraná.”

✓ located verbatim in the source · abstract, characters 756–905
t0

“sweet potatoes”

✓ located verbatim in the source · title, characters 35–49

Title

Production and physical quality of sweet potatoes under phosphate fertilization

Pablo H. de A. Oliveira; Welder de A. R. Lopes; Anna K. S. de Oliveira; et al. Revista Caatinga 2024. doi:10.1590/1983-21252024v3711399rc

Other claims from this paper (2)

Record rev-480d07bb5bb2dc147990156482d271daf4127c7a69be86e79a9a0085d930b782 · schema claims-v0.9 · position 1 in the model’s answer

phosphorus · yield · Ipomoea batatas (sweet potato)Positive and negative results

23 papers: 19 positive, 4 negative or no effect

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

  1. no effect
    In high P soil, increasing P did not increase tuber yield.

    Sweet potato yield and quality as a function of phosphorus fertilization in different soils · 2023

    Opposite directionCited by this paper

  2. no effect
    Low phosphorus left tuber number unchanged.

    Molecular Mechanisms Underlying Sweet Potato (Ipomoea batatas L.) Responses to Phosphorus Deficiency · 2025

    Opposite direction

  3. no effect
    P and K did not significantly increase yield at Chitedze and Makoka.

    Response of sweetpotato to fertilizer application in Malawi. · 2008

    Opposite direction

  4. no effect
    Other fertilizer comparisons showed no difference in plant production or yield at either cutting.

    Sweetpotato Plant Bed Fertilization · 1997

    Opposite direction

  5. positive
    Screened PSB promoted sweetpotato yield in laboratory and field experiments.

    Multi-Omics Reveal the Efficient Phosphate-Solubilizing Mechanism of Bacteria on Rocky Soil · 2021

    Same direction

  6. positive
    The 60 kg P2O5/ha treatment produced the highest yield.

    Growth and yield response of sweet potato to different tillage methods and phosphorus fertilizer rates in Ghana · 2016

    Same direction

  7. positive
    Integrated use of nitrogen, phosphorus, potassium and farmyard manure gave a significantly higher sweet potato tuber yield (18.7 Mg ha-1).

    Effect of Lime, Inorganic, and Organic Sources on Soil Fertility, Yield, Quality, and Nutrient Uptake of Sweet Potato in Alfisols · 2011

    Same direction

  8. positive
    Maximum productivity of 1.68 kg m-2 occurred when the P2O5 dose was 191 kg ha-1.

    Mineral nutrition and yield of sweet potato according to phosphorus doses · 2016

    Same direction

14 papers more in this group

See all 23 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.