Intervention effectmodel-written summary

Customized grade III with N and K compensation gave the highest onion bulb yield, yield attributes and nutrient uptake among customized grades.

A claim from Effect of Sulphur and Zinc Containing Customized Fertilizers on Growth, Yield and Nutrient Uptake of Onion · 2020

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Customized grade III with N and K compensation gave the highest onion bulb yield, yield attributes and nutrient uptake among customized grades.

Taxon
onionAllium cepae0
Treatment
recommended dose applied through grade III (12:45:00:05:01) and compensation of N and K through conventional sourcee0
Outcome
onion bulb yield, yield attributes and nutrient uptakee0
Direction
higheste0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“recommended dose applied through grade III (12:45:00:05:01) and compensation of N and K through conventional source recorded highest onion bulb yield, yield attributes and nutrient uptake by onion”

✓ located verbatim in the source · abstract, characters 834–1030

Title

Effect of Sulphur and Zinc Containing Customized Fertilizers on Growth, Yield and Nutrient Uptake of Onion

P.H. Rathod; R.N. Katkar; R. Vrushali; et al. International Journal of Current Microbiology and Applied Sciences 2020. doi:10.20546/ijcmas.2020.901.234

Other claims from this paper (3)

Record rev-6ea1bd4ba22e397c0c449702778e09dbe3d2dff9023e6af741a6aec99d38880f · schema claims-v0.9 · position 3 in the model’s answer

potassium · yield · Allium cepa (onion)Positive and negative results

59 papers: 54 positive, 5 negative or no effect

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

  1. negative
    N, P and K addition depressed onion yield in the first year.

    N–P–K FERTILIZER EFFECTS ON YIELD, COMPOSITION AND RESIDUES OF LETTUCE, CELERY, CARROT AND ONION GROWN ON AN ORGANIC SOIL IN QUEBEC · 1975

    Opposite direction

  2. no effect
    Higher fertilization did not increase onion yield beyond stated N, P and K levels.

    OPTIMAL SOIL pH AND SUFFICIENCY CONCENTRATIONS OF N, P AND K FOR MAXIMUM ALFALFA AND ONION YIELDS ON ACID ORGANIC SOILS · 1980

    Opposite direction

  3. no effect
    Potassium levels did not affect onion yield.

    Response of Rabi Onion cv. Nasik Red to nitrogen and Potassium Fertilizer · 2001

    Opposite direction

  4. no effect
    Up to 25% KCl caused no significant growth or yield decline under direct seeding.

    Onion Bulb Yield and Quality as Influenced by Seed or Seedling Planting Methods As well as Potassium Fertilizer Forms, K2SO4 and KCl, and Their Combination · 2023

    Opposite direction

  5. no effect
    Phosphorus, potash, and nutrient by spacing interactions had nonsignificant effects on yield.

    Influence of Nitrogen, Phosphorus, Potassium and Planting Distance on the Maturity and Yield of Onion (Allium Cepa L.). · 1974

    Opposite direction

  6. positive
    Raising potassium sulphate up to 150 kg/fed significantly affected total yield and its components (bulb weight and bulb dimension) of onion.

    RESPONSE OF GROWTH AND YIELD OF ONION PLANTS TO POTASSIUM FERTILIZER AND HUMIC ACID. · 2005

    Same direction

  7. positive
    Bulb yield of onion increased significantly up to 120 kg K2O/ha.

    Response of onion (Allium cepa) to potassium application · 2001

    Same direction

  8. positive
    Maximum onion yield was obtained with the variety Rasidpura Local at 150 kg nitrogen and 150 kg potassium per hectare.

    Response of onion to nitrogen and potassium fertilization under semi-arid condition of Rajasthan · 2003

    Same direction

50 papers more in this group

See all 59 papers →

nitrogen · yield · Allium cepa (onion)Positive and negative results

184 papers: 157 positive, 27 negative or no effect

156 papers in the same direction as this claim · 23 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
    High combined nitrogen and sulphur rates had an antagonistic effect on bulb nutrient uptake, yield components and yield.

    Nutrient uptake and yield of onion as influenced by nitrogen and sulphur fertilization · 2008

    Opposite directionCited by this paper

  2. negative
    Total yield at the lowest nitrogen rate was lower than at higher rates.

    Bolting, Yield, and Bulb Decay of Sweet Onion as Affected by Nitrogen Fertilization · 2003 · compared with higher N rates

    Opposite direction

  3. negative
    Onion yield decreased by 95 Mg·ha -1 for each 25% increase in the proportion of urea in fertilizer blends.

    Nitrogen Use Efficiency and Onion Yield Increased with a Polymer-coated Nitrogen Source · 2002

    Opposite direction

  4. no effect
    Yields of cabbage, carrots and onions were generally unaffected by N rate, except in cabbage in 2000.

    Assessment of Chlorophyll and Nitrate Meters as Field Tissue Nitrogen Tests for Cabbage, Onions, and Carrots · 2004

    Opposite direction

  5. negative
    N, P and K addition depressed onion yield in the first year.

    N–P–K FERTILIZER EFFECTS ON YIELD, COMPOSITION AND RESIDUES OF LETTUCE, CELERY, CARROT AND ONION GROWN ON AN ORGANIC SOIL IN QUEBEC · 1975

    Opposite direction

  6. negative
    An N rate of 120 kg ha−1 led to a yield drop in onion.

    Onion (Allium cepa L.) Yield and Growth Dynamics Response to In-Season Patterns of Nitrogen and Sulfur Uptake · 2020

    Opposite direction

  7. no effect
    Higher fertilization did not increase onion yield beyond stated N, P and K levels.

    OPTIMAL SOIL pH AND SUFFICIENCY CONCENTRATIONS OF N, P AND K FOR MAXIMUM ALFALFA AND ONION YIELDS ON ACID ORGANIC SOILS · 1980

    Opposite direction

  8. no effect
    Nitrogen manuring had practically no effect on yield.

    STUDIES IN THE PHYSIOLOGY OF THE ONION PLANT · 1947

    Opposite direction

175 papers more in this group

See all 184 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.