Intervention effectmodel-written summary

Sulphur fertilizer increased flixweed biomass.

A claim from Differential response of weed and crop species to potassium and sulphur fertilizers · 2007

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Taxon: canolaBrassica napus var. napuse0
Treatment: Sulphur fertilizere0
Interactor: flixweede0weed
Outcome: biomass production of canola, flixweede0
Direction: increasede0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

*Brassica napus var. napus* · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0
“Sulphur fertilizer increased the biomass production of canola, flixweed (Descurainia sophia L.) and wild mustard (Sinapis arvensis L.)”
✓ located verbatim in the source · abstract, characters 545–679

Title

Differential response of weed and crop species to potassium and sulphur fertilizers

C. A. Grant; D. A. Derksen; R. E. Blackshaw; et al. Canadian Journal of Plant Science 2007. doi:10.4141/p06-138

Other claims from this paper (12)

Intervention effect Seven weed species significantly increased biomass with potassium fertilizer.
Intervention effect Canola biomass did not increase with potassium addition.
Intervention effect Wheat biomass did not increase with potassium addition.
Intervention effect Sulphur fertilizer increased canola biomass.
Intervention effect Sulphur fertilizer increased wild mustard biomass.
Intervention effect Sulphur fertilizer increased hairy nightshade biomass.
Intervention effect Sulphur fertilizer increased round-leaved mallow biomass.
Intervention effect Sulphur fertilizer increased stork’s-bill biomass.
Intervention effect Sulphur fertilizer did not increase spring wheat biomass.
Intervention effect Sulphur fertilizer did not increase biomass of any grass weed species.
Association The greenhouse data suggest fertilizer can shift relative weed–crop competition when weeds respond more than the crop.
Recommendation The authors recommend field testing the competition concept.

Record rev-4bbf881cafcb2a6fcaf374271b368e8dff649be9b4fc5a2a9d77c9586b90fbc3 · schema claims-v0.9 · position 5 in the model’s answer

sulfur atom · yield · Brassica napus (oilseed rape)Results differ

59 papers: 49 positive, 10 negative or no effect

10 papers in the same direction as this claim · 48 in the opposite direction

positive
In N.W. Saskatchewan, sulphur increased rapeseed yield by 1.06 t ha −1.
THE EFFECT OF NITROGEN, SULPHUR AND BORON ON YIELD AND QUALITY OF RAPESEED (Brassica napus L. and B. campestris L.) · 1987
Opposite direction
positive
N + S fertilization increased seed plus straw yield and seed plus straw S uptake relative to N alone in most cases.
Effectiveness of sulphate-S fertilization at different growth stages for yield, seed quality and S uptake of canola · 2002 · compared with N alone
Opposite direction
positive
Sulfur fertilization substantially increased canola seed and straw yield and sulfur and nitrogen uptake.
Interactive effects of N and S fertilizers on canola yield and seed quality on S-deficient Gray Luvisol soils in northeastern Saskatchewan · 2007
Opposite direction
positive
Seeds per siliqua increased with foliar sulfur at 500 ppm.
Foliar application of sulfur improved growth, yield and physiological attributes of canola (brassica napus L.) under heat stress conditions · 2021
Opposite direction
positive
Increasing sulfur increased pods per plant and biological yield.
EFFECT OF NITROGEN AND SULFUR FERTILIZATION ON YIELD COMPONENTS, SEED AND OIL YIELDS OF CANOLA · 2011
Opposite direction
positive
Sulphur at 40 and 60 kg S/ha increased winter rapeseed grain yield by 11-12% compared with the not fertilized treatment.
Effect of sulphur and micronutrients fertilization on yield and fat content in winter rape seeds (Brassica napus L.) · 2015 · compared with not fertilized treatment
Opposite direction
positive
Sulfur application increased rapeseed grain yield.
Inoculation of rapeseed under different rates of inorganic nitrogen and sulfur fertilizer: impact on water relations, cell membrane stability, chlorophyll content and yield · 2014
Opposite direction
positive
Sulfur increased yield from 3.1 to 27.1 g.
Effects of applied sulfur on glucosinolate and oil concentrations in the seeds of rape ( Brassica napus L.) and turnip rape ( Brassica rapa L. var. silvestris (Lam.) Briggs) · 1989
Opposite direction

50 papers more in this group

See all 59 papers →

fertilization · yield · Brassica napus (oilseed rape)Positive and negative results

378 papers: 337 positive, 41 negative or no effect

41 papers in the same direction as this claim · 336 in the opposite direction

positive
NPK increased rapeseed yield 61-76% over PK across sites.
Effects of fertilization on crop production and nutrient-supplying capacity under rice-oilseed rape rotation system · 2017 · compared with PK fertilization
Opposite direction
positive
P increased rape yields.
Effects of Nitrogen and Phosphorus Fertilization on Plant Growth and Nitrate Accumulation in Vegetables · 2004
Opposite direction
positive
The 3% calcium-fortified composted manure significantly enhanced growth and yield parameters of canola compared with control.
Alleviation of Salinity-Induced Oxidative Stress, Improvement in Growth, Physiology and Mineral Nutrition of Canola (Brassica napus L.) through Calcium-Fortified Composted Animal Manure · 2020 · compared with control
Opposite direction
positive
N fertilization increased oilseed rape grain yield by 109–160%.
Nitrogen Fertilizer Management for Enhancing Crop Productivity and Nitrogen Use Efficiency in a Rice-Oilseed Rape Rotation System in China · 2016 · compared with RO1
Opposite direction
positive
Sulphur fertilizer solved the problem of poor seed set in rapeseed cultivars.
THE EFFECT OF NITROGEN, SULPHUR AND BORON ON YIELD AND QUALITY OF RAPESEED (Brassica napus L. and B. campestris L.) · 1987
Opposite direction
positive
Fertilization treatments improved grain yield.
Improving yield-related physiological characteristics of spring rapeseed by integrated fertilizer management under water deficit conditions · 2020
Opposite direction
positive
Tested fertilization significantly affected seed yield relative to the unfertilized control at 2.24 t ha −1.
Effect of Timing and Nitrogen Fertilizer Application on Winter Oilseed Rape (Brassica napus L.). I. Growth Dynamics and Seed Yield · 2004 · compared with control
Opposite direction
positive
N + S fertilization increased seed plus straw yield and seed plus straw S uptake relative to N alone in most cases.
Effectiveness of sulphate-S fertilization at different growth stages for yield, seed quality and S uptake of canola · 2002 · compared with N alone
Opposite direction

369 papers more in this group

See all 378 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 · Brassica napus (oilseed rape)Results differ

fertilization · yield · Brassica napus (oilseed rape)Positive and negative results