organic · Yield · Allium cepa (onion)

Results differ29 papers: 20 positive, 9 negative or no effect · 1 pair of papers confirmed to differ

49 claims from these papers; 9 citations between them.

Papers whose results differ, checked claim by claim 1

1 pair of papers on this question report results that differ: an effect in one paper, the opposite effect or no effect in the other. Two model reviewers reading both claims accepted each pair.

Improving Onion Yield and Market Grade by Mechanical Straw Application to Irrigation Furrows (1999)
increaseStraw mulch increased station onion yield by 64% in 1991.
Effect of different types of mulch on bulb yield of shallot (2021)
no changeStraw mulch did not significantly change shallot bulb yield relative to no mulch.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →

How these papers cite each other

9 citations between these papers: 5 on the same side, 4 across the two sides.

Positive result
Negative result or no effect
Citation, pointing to the cited paper
Citation across the two sides
Larger circle: more citations overall

Years run left to right. Citations come from the papers’ OpenAlex reference lists. Hover a paper to bring forward its citations; click it to open the paper.

Papers reporting a positive result 20

Improving Onion Yield and Market Grade by Mechanical Straw Application to Irrigation Furrows · 1999
- positive
  Straw mulch increased station onion yield by 74% in 1995.
- positive
  Straw mulch increased station onion yield by 64% in 1991.
cited by 2 papers here
Productivity and soil fertility status as influenced by integrated use of n-fixing biofertilizers, organic manures and inorganic fertilizers in onion · 2006
- positive
  Biofertilizer with organic and chemical fertilizers significantly increased onion yield.
- positive
  Integrated fertilizer yielded 22% more than the recommended fertilizer control.
  compared with control (RDF)
- positive
  The integrated treatment significantly increased harvest index.
- positive
  The integrated treatment significantly increased available soil NPK after harvest.
Straw Mulch and Reduced-Risk Pesticide Impacts on Thrips andIris Yellow Spot Viruson Western-Grown Onions · 2009
- positive
  Straw mulch increased total onion yield by as much as 13% versus bare soil.
  compared with bare soil treatments
- positive
  Straw mulch increased jumbo onion yield by as much as 18% versus bare soil.
  compared with bare soil treatments
cites 2 papers herecited by 1 paper here
Weed management in onion using chemical, non-chemical, and manual methods · 2010
- positive
  Rice straw mulch yielded net returns of US$ 1,522 ha–1.
  compared with non-treated control
- positive
  Rice straw mulch produced a 26 t ha–1 bulb yield increase versus untreated control.
  compared with non-treated control
- positive
  Rice straw mulch significantly increased onion bulb yield relative to the weed-free treatment.
  compared with weed-free treatment
Effect of Mulch and Different Levels of N and K on the Growth and Yield of Onion · 2013
- positive
  Straw mulch raised bulb yield to 10.89 t ha-1, 13.79% above non-mulch.
  compared with non-mulch
- positive
  Maximum nitrogen and potassium with straw mulch gave highest bulb yield of 14.67 t ha-1.
- positive
  120 kg ha-1 nitrogen with straw mulch gave highest yield of 13.31 t ha-1.
- positive
  112.5 kg ha-1 potassium with straw mulch gave highest bulb yield of 11.58 t ha-1.
Effect of date of transplanting and mulching on growth, yield and quality of onion (Allium cepa L.) cv. Nasik Red · 2017
- positive
  Onion leaf number was maximal at 8.89 per plant with December 1 transplanting and wheat straw mulch.
- positive
  Onion yield was maximal at 5.166 kg/plot and 387.46 q/ha with December 1 transplanting and wheat straw mulch.
Aplikasi Mulsa dan Biokultur Urin Sapi terhadap Pertumbuhan dan Hasil Bawang Merah · 2018
- positive
  Rice straw mulch combined with four cow urine bioculture applications significantly affected shallot growth and production.
cited by 1 paper here
Combined application of mulches and organic fertilizers enhance shallot production in dryland · 2019
- positive
  The same treatment increased bulb yield of shallot from 4.27 to 10.22 t/ha.
- positive
  The same treatment positively affected bulb diameter and fresh bulb weight of shallot.
cited by 2 papers here
Effect of organic, inorganic and integrated nutrient management on yield attributes, production of onion and soil properties, under vertisol of Maharashtra · 2020
- positive
  Integrated nutrient management produced the highest leaf strew yield of 2.02 qt ha -1.
- positive
  Integrated nutrient management produced the highest onion bulb yield of 139.57 qt ha -1.
Improving water productivity and yield of onion crop by combining early planting and straw mulch under different irrigation levels in dry Mediterranea region · 2020
- positive
  Early planting with straw mulch more than doubled bulb yield.
  compared with planting in April without mulch
Increasing Shallot Production in Marginal Land Using Mulches and Coconut Husk Fertilizer · 2021
- positive
  Straw mulch with 1000 L ha-1 coconut husk liquid fertilizer gave the highest bulb yield, 9.63 t ha-1.
  compared with other treatments
- positive
  Straw mulch with 1000 L ha-1 coconut husk liquid fertilizer gave the highest plant height, number of leaves per plant and number of tillers compared with other treatments.
  compared with other treatments
cites 1 paper herecited by 1 paper here
AGRONOMIC PERFORMANCE OF SHALLOT (Allium cepa L. var. Aggregatum) UNDER DIFFERENT MULCH AND ORGANIC FERTILIZERS · 2022
- positive
  Rice straw mulch plus bioculture had a positive significant effect on fresh weight, dry weight and bulb diameter of shallot.
- positive
  Rice straw mulch plus bioculture had a positive significant effect on bulb yield of shallot.
- positive
  Rice straw mulch plus bioculture had a positive significant effect on plant height, number of leaves and number of tillers of shallot.
cites 2 papers here
Onion Yield and Internal Quality Increased by Straw Mulch and Reduced by Artificial Heat, but Not Affected by Kaolin Particle Film · 2022
- positive
  Straw mulch produced the highest yield of onion bulbs larger than 102 mm.
cites 2 papers here
APPLICATION OF PLANT BIOMASS COMPOST APPLICATION AND THE USE OF SEVERAL TYPES OF mulch ON THE GROWTH AND PRODUCTION OF RED ONION (allium ascalonicum L.) · 2022
- positive
  Jengkol skin mulch and 15 tons/ha fertilizer gave the highest shallot growth and production, yielding 850.00 grams/plot.
Herbicidal efficacy of some natural products and mulching compared to herbicides for weed control in onion fields · 2023
- positive
  Rice straw mulch increased bulb diameter by 57.55 percent over the weedy check.
  compared with weedy check
- positive
  Rice straw mulch increased bulb weight by 45.74 percent over the weedy check.
  compared with weedy check
- positive
  Rice straw mulch increased onion yield by 66.22 percent over the weedy check.
  compared with weedy check
- positive
  Rice straw mulch increased bulb length by 67.52 percent over the weedy check.
  compared with weedy check
Investigating the effects of fish effluents as organic fertilisers on onion (Allium cepa) yield, soil nutrients, and soil microbiome · 2023
- positive
  Fish water and aerobically treated sludge produced higher onion yields than manure.
  compared with manure
Tropic soil properties and productivity of Shallot Lembah Palu variety · 2023
- positive
  Organic matter at 15 tons ha−1 gave fresh tuber weight of 10.94 tons ha−1, higher than 10 tons ha−1.
  compared with 10 tons of ha −1
Morfologi Tanaman Bawang Merah (Allium ascalonicum) terhadap Pemberian Mikoriza dan Media Tanam Limbah Kelapa Sawit · 2023
- positive
  Top soil plus sludge was the best medium for onion growth and production.
Effect of Deficit Irrigation and Mulch Application on Onion (Allium cepa L.) Bulb Yield and Water Productivity Under Drip Irrigation at Ambo, West Shoa, Ethiopia · 2024
- positive
  Straw mulch gave the highest bulb yield at 41038 kg/ha.
Effect of Regulated Deficit Irrigation and Mulch Levels on Quality and Economic Importance of Onion (Allium cepa L.) at Werer, Middle Awash Valley, Ethiopia · 2024
- positive
  Application of 80% ETc and 6 t/ha straw mulch gave higher net benefits for onion.
- positive
  Application of 80% ETc and 6 t/ha straw mulch gave a lower cost of production for onion.

Papers reporting a negative result or no effect 9

SEWAGE SLUDGE COMPOST AS A SOIL AMENDMENT FOR HORTICULTURAL CROPS · 1992
- no effect
  Sludge compost at 30 cm did not change onion yield.
Evaluation of cultural practices (surface burning, deep ploughing, organic amendments) for management of rice root-knot nematode in rice - onion cropping system and their effect on onion (Allium cepa L.) yield · 2001
- no effect
  Organic amendment did not increase onion yield.
Long-term organic nutrient management in high value rice (Oryza sativa)potato (Solanum tuberosum)/onion (Allium cepa) cropping system in Chhattisgarh · 2001
- negative
  Onion bulb yield under organic input treatments remained lower than under inorganic and integrated treatments.
  compared with inorganic and integrated treatment
Impact of Straw Mulch on Populations of Onion Thrips (Thysanoptera: Thripidae) in Onion · 2008
- no effect
  Straw mulch did not affect overall onion yield.
cites 1 paper herecited by 1 paper here
Impact of Straw Mulch on Populations of Onion Thrips (Thysanoptera: Thripidae) in Onion · 2008
- no effect
  Straw mulch did not affect overall onion yield.
cited by 1 paper here
Direct and secondary effects of soil mulching with straw on fresh mass and number of weeds, vegetable yield. · 2009
- no effect
  Cabbage and onion yield after straw mulch was similar to the yield after farmyard manure.
  compared with farmyard manureNo difference from an alternative treatment
Integrated nutrient management for sustainable onion production · 2015
- no effect
  Integrated fertilization produced onion bulb yield at par with the previous recommendation.
  compared with previous recommendation (150: 50: 80: 50 kg NPKS + 20 t FYM/ha)No difference from an alternative treatment
Effect of different types of mulch on bulb yield of shallot · 2021
- no effect
  Straw mulch did not significantly change shallot bulb yield relative to no mulch.
  compared with control treatment
cites 1 paper here
Pertumbuhan Dan Hasil Bawang Merah (Allium ascalonicum L.) Pada Beberapa Jenis Dan Dosis Bahan Organik · 2022
- no effect
  Organic matter type and dose had no significant effect on plant height, leaf number or tiller number.

A paper is on the positive side when any of its claims here is positive. Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.

organic · Yield · Allium cepa (onion)

Papers whose results differ, checked claim by claim 1

How these papers cite each other

Papers reporting a positive result 20

Papers reporting a negative result or no effect 9

organic on Allium cepa (onion) against other targets

organic · yield on other organisms