Intervention effectmodel-written summary

Increasing N dose up to 300 kg/ha increased marketable percentage of mature bulbs.

A claim from THE INFLUENCE OF N SOURCES AND FERTILIZATION DOSES ON DRY ONION (ALLIUM CEPA L.) YIELD AND BULBS SHELF LIFE · 2009

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing N dose up to 300 kg/ha increased marketable percentage of mature bulbs.

Taxon
DRY ONION (ALLIUM CEPA L.)t0
Treatment
N doses up to 300 kg/hae0
Outcome
marketable percentage of matured bulbse0
Direction
increasee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Verbatim

e0

“Generally speaking, the increase of N doses up to 300 kg/ha was followed by a steady increase of the total yield and of the marketable percentage of matured bulbs.”

✓ located verbatim in the source · abstract, characters 1033–1196
t0

“DRY ONION (ALLIUM CEPA L.)”

✓ located verbatim in the source · title, characters 54–80

Title

THE INFLUENCE OF N SOURCES AND FERTILIZATION DOSES ON DRY ONION (ALLIUM CEPA L.) YIELD AND BULBS SHELF LIFE

N. Zeka; TH. Nasto; A. Balliu Acta Horticulturae 2009. doi:10.17660/actahortic.2009.830.70

Other claims from this paper (4)

Record rev-e593e78dcff7b8907a9bf9583f14d3b7ed67a64248ad23e9aeba54d3998167ba · schema claims-v0.9 · position 2 in the model’s answer

nitrogen · quality: postharvest · Allium cepa (onion)Positive and negative results

41 papers: 36 positive, 5 negative or no effect

35 papers in the same direction as this claim · 5 in the opposite direction

  1. positive
    Onion trial result: Total marketable fresh onion yield was increased.

    Nitrogen Effects on Onion Yield Under Drip and Furrow Irrigation · 2008

    Same directionCited by this paper

  2. positive
    Nitrogen up to 40 kg N/ha increased days to 10% sprouting in storage at two sites.

    Effect of nitrogen on the yield and quality of irrigated onions ( Allium cepa L.) cv. Cream Gold grown on siliceous sands · 1990

    Same directionCited by this paper

  3. negative
    An initial period of low N delayed bulb scale development and ripening relative to high N, particularly under 14 h photoperiods.

    Effects of Nitrogen Supply on Bulb Development in OnionAllium cepaL. · 1989 · compared with high N

    Opposite direction

  4. negative
    Excessive nitrogen caused rapid deterioration and weight loss of bulbs during ambient storage.

    Effect of N, K and S on the Yield and Storability of Transplanted Onion (Allium cepa L.) in the Hilly Region · 1970

    Opposite direction

  5. negative
    High nitrogen advanced sprouting in storage relative to no or low nitrogen.

    Nitrogen-water Relationships of Onions Grown on Organic Soil1 · 1977 · compared with no N or with the low N rates

    Opposite direction

  6. negative
    Excess nitrogen increased bulb rots, sprouting and weight loss.

    Quality and Storage Life of Onion (Allium cepa L.) as Influenced by Applications of Nitrogen, Phosphorus and Potassium Fertilizer, at Jimma, South Western Ethiopia · 2018

    Opposite direction

  7. negative
    Irrigation at 10% depletion of field capacity with 150 kg N ha-1 gave higher total postharvest liquid weight loss (PLW) of onion over 120 days of storage.

    Effect of Nitrogen and Water Use on Yield And Storability of Onion · 2023

    Opposite direction

  8. positive
    69 kg N ha-1 increased marketable bulb yield by 17%.

    Growth, bulb yield and quality of onion ( Allium cepa L.) as influenced by nitrogen and phosphorus fertilization on vertisol I. growth attributes, biomass production and bulb yield · 2011 · compared with control

    Same direction

32 papers more in this group

See all 41 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.