Intervention effectmodel-written summary

Onion bulb yield was highest at 140 kg/ha potassium with 35 kg/ha sulfur.

A claim from Effect of Different Level of Potassium and Sulfur Fertilizers on Growth and Yield of Onion (Allium cepa L.) · 2024

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Taxon: onionAllium cepat0
Material: BARI Piaz-6e0
Treatment: 140 kg/ha potassium with 35 kg/ha dose of sulfure4
Outcome: bulb yielde4
Direction: higheste4
Setting: Dhaka, Bangladeshe0

Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier

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

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

Verbatim

t0
“Onion (Allium cepa L.)”
✓ located verbatim in the source · title, characters 85–107

e0
“An experiment was undertaken at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during October, 2020 to June 2021 to observe the influence of different levels (100, 120, 140 and 160 kg K/ha) of potash and sulfur (5, 15, 25, and 35 kg S/ha) on growth, yield of BARI Piaz-6”
✓ located verbatim in the source · abstract, characters 0–280

e4
“The highest plant height, leaf number, leaf length, bulb diameter, bulb height, individual bulb weight, bulb yield was observed at 140 kg/ha potassium with 35 kg/ha dose of sulfur”
✓ located verbatim in the source · abstract, characters 838–1017

Title

Effect of Different Level of Potassium and Sulfur Fertilizers on Growth and Yield of Onion (Allium cepa L.)

Md. Mahmudul Hasan Manik; Md. Abdur Razzaque; Md. Imdadul Haque; et al. Asian Journal of Agriculture and Allied Sciences 2024. doi:10.56557/ajaas/2024/v7i140

Other claims from this paper (9)

Intervention effect Different doses of sulfur significantly affected leaf number, leaf length and bulb diameter of onion.
Intervention effect Different doses of sulfur significantly affected bulb height, individual bulb weight and bulb yield of onion.
Intervention effect Different potassium doses significantly varied all growth and yield parameters, with the highest results at 140 kg/ha and the lowest at 100 kg/ha.
Intervention effect The interaction of sulfur and potassium doses significantly influenced all onion growth and yield data.
Intervention effect Onion plant height, leaf number and leaf length were highest at 140 kg/ha potassium with 35 kg/ha sulfur.
Intervention effect Onion bulb diameter, bulb height and individual bulb weight were highest at 140 kg/ha potassium with 35 kg/ha sulfur.
Intervention effect Onion plant height, leaf number and leaf length were lowest at the lowest sulfur and potassium doses (5 kg S/ha and 100 kg K/ha).
Intervention effect Onion bulb diameter, bulb height and individual bulb weight were lowest at the lowest sulfur and potassium doses (5 kg S/ha and 100 kg K/ha).
Intervention effect Onion bulb yield was lowest at the lowest sulfur and potassium doses (5 kg S/ha and 100 kg K/ha).

Record rev-5ef16eeddb479ea08965eb57ecefe5ecacd0426000b9c1f5c9ac41278175e15d · schema claims-v0.9 · position 7 in the model’s answer

sulfur atom · yield · Allium cepa (onion)Results differ

45 papers: 38 positive, 7 negative or no effect

37 papers in the same direction as this claim · 7 in the opposite direction

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 direction
no effect
Excess sulphur did not significantly influence yield.
Effect of sulphur nutrition on pungency and storage life of short day onion (Allium cepa) · 2013
Opposite direction
no effect
K/S rate did not affect individual bulb weight.
Sweet Onion (Allium cepa) Plant Growth and Bulb Yield and Quality as Affected by Potassium and Sulfur Fertilization Rates · 2016
Opposite direction
negative
Seepage irrigation significantly reduced onion yield against all treatments except CS in 2015/2016.
Effect of cyclic irrigation using moderately saline and non‐saline water on onion (Allium cepa L.) yield and soil salinization in semi‐arid areas of Northern Ethiopia* · 2020 · compared with all but CS
Opposite direction
no effect
Sulphur beyond 30 kg/ha brought the onion yield back to the level of 0 and 15 kg/ha.
Effects of sulphur in presence and absence of farmyard manure on onion (Allium cepa) under onion-maize (Zea mays) cropping sequence · 2008 · compared with 0 and 15 kg/ha
Opposite direction
no effect
Sulfur treatments did not affect onion yield or grade.
RELATIONSHIP BETWEEN PUNGENCY, SOLUBLE SOLIDS, AND SUSCEPTIBILITY TO NECK ROT IN ONIONS · 1992
Opposite direction
no effect
High-dilution sulphur sprays did not influence bulb weight or postharvest conservation of onion compared with untreated control.
High dilutions of Sulphur and relationship with the onion thrips, downy mildew incidence and yield of onion in organic system · 2015 · compared with untreated plot
Opposite direction
positive
Sulfur fertilizer significantly increased bulb and tissue dry weights, total dry matter, leaf area index and growth rates.
Effect of sulphur on growth, yield and yield attributes in onion (Allium cepa L.) · 2013
Same direction

36 papers more in this group

See all 45 papers →

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

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
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
no effect
Potassium levels did not affect onion yield.
Response of Rabi Onion cv. Nasik Red to nitrogen and Potassium Fertilizer · 2001
Opposite direction
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
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
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
positive
Bulb yield of onion increased significantly up to 120 kg K2O/ha.
Response of onion (Allium cepa) to potassium application · 2001
Same direction
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 →

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.

Other papers on the same question

sulfur atom · yield · Allium cepa (onion)Results differ

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