Intervention effectmodel-written summary

Tuber yield and plant N uptake were similar with N rates above 56 kg/ha applied at tuber initiation

A claim from Nitrogen Fertilizer Rate and Application Timing for Chipping Potato Cultivar Atlantic · 2014

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tuber yield and plant N uptake were similar with N rates above 56 kg/ha applied at tuber initiation

Treatment
N rates above 56 kg hae4
Outcome
Tuber yield and plant N uptakee4
Direction
similare4

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“N fertilizer management of potato ( Solanum tuberosum L.)”

✓ located verbatim in the source · abstract, characters 15–72
e4

“Tuber yield and plant N uptake were similar with N rates above 56 kg ha”

✓ located verbatim in the source · abstract, characters 1182–1253

Title

Nitrogen Fertilizer Rate and Application Timing for Chipping Potato Cultivar Atlantic

Lincoln Zotarelli; Libby R. Rens; Daniel J. Cantliffe; et al. Agronomy Journal 2014. doi:10.2134/agronj14.0193

Other claims from this paper (6)

Record rev-0d2fc25354d6e9ee7f4f04ec9ed762a54d9b15540b736ce07eb404b8b2517f5c · schema claims-v0.9 · position 3 in the model’s answer

nitrogen · yield · Solanum tuberosum (potato)Results differ

132 papers: 109 positive, 23 negative or no effect

22 papers in the same direction as this claim · 109 in the opposite direction

  1. positive
    At the 90% NSI threshold, SPAD management improved tuber yield per unit nitrogen.

    Chlorophyll meter‐based leaf nitrogen status to manage nitrogen in tropical potato production · 2021

    Opposite directionCites this paper

  2. positive
    Potato yield was higher with 120–180 kg ha−1 N and an 8:2 base/topdressing ratio in silt loam.

    Effect of N Fertilizer Dosage and Base/Topdressing Ratio on Potato Growth Characteristics and Yield · 2023

    Opposite directionCites this paper

  3. positive
    Yield gains were most consistent between 277 and 295 kg N ha − 1.

    Quantifying the response of goldrush potato to nitrogen on sandy soil · 2026

    Opposite directionCites this paper

  4. positive
    Well-watered, sufficient nitrogen, and well-watered combined with sufficient nitrogen increased potato yield, mainly by enhancing source capacity.

    Regulation Effects of Water and Nitrogen on the Source-Sink Relationship in Potato during the Tuber Bulking Stage · 2016

    Opposite direction

  5. positive
    Nitrogen application could alleviate the drought-induced reduction in tuber yield and total biomass.

    Yield and Physiological Response of Potatoes Indicate Different Strategies to Cope with Drought Stress and Nitrogen Fertilization · 2016

    Opposite direction

  6. positive
    Mixed nitrogen significantly increased tuber dry weight relative to either nitrogen form alone.

    Study of various NH4+/NO3−mixtures for enhancing growth of potatoes · 1993 · compared with single NH4+ or NO3- form

    Opposite direction

  7. positive
    Yields were higher with CRU at 150 kg N/ha than with CAN at 150 or 200 kg N/ha in potato.

    Efficiency of Controlled‐Release Urea for a Potato Production System in Quebec, Canada · 2011 · compared with 150CAN or 200CAN

    Opposite direction

  8. positive
    In 1998 a maximum potato yield of 40.8 t/ha was obtained at Kufri (Shimla) with 180 kg N, 100 kg P2O5 and 150 kg K2O per hectare, against 14.6 t/ha at the control plots.

    Potassium and integrated nutrient management in potato. · 2002 · compared with control plots

    Opposite direction

123 papers more in this group

See all 132 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.