Intervention effectmodel-written summary

Adding sulphur to nitrogen fertilization significantly increased protein content and yield, especially with in-soil application.

A claim from Sulphur as a factor that affects nitrogen effectiveness in spring rapeseed agrotechnics. Part II. Yield of seeds and protein · 2016

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Adding sulphur to nitrogen fertilization significantly increased protein content and yield, especially with in-soil application.

Taxon
spring rapeseedt0
Treatment
in-soil sulphur applicatione0
Outcome
protein content and yielde0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier

Verbatim

t0

“spring rapeseed”

✓ located verbatim in the source · title, characters 59–74
e0

“and also protein content and yield, in particular in the conditions of in-soil sulphur application”

✓ located verbatim in the source · abstract, characters 1011–1109

Title

Sulphur as a factor that affects nitrogen effectiveness in spring rapeseed agrotechnics. Part II. Yield of seeds and protein

B. Barczak; Z. Skinder; Roman Piotrowski 2016

Other claims from this paper (4)

Record rev-e7c59fcc03654cbe12021632934261bfcdab02fa2d2abb655e7736e7791b9650 · schema claims-v0.9 · position 5 in the model’s answer

sulfur atom · quality: protein · Brassica napus (oilseed rape)Results differ

10 papers: 6 positive, 4 negative or no effect

5 papers in the same direction as this claim · 4 in the opposite direction

  1. positive
    Protein increased from 22.4% to 23.2% as sulfur rose from zero to 20 kg/ha.

    Influence of nitrogen and sulfur fertilization on quality of canola (Brassica napus L.) under rainfed conditions · 2007

    Same directionCited by this paper

  2. negative
    Sulphur decreased seed protein content.

    Variation in yield, oil and protein content of rapeseed (Brassica campestris) in relation to levels of nitrogen, sulphur and plant density · 2001

    Opposite direction

  3. no effect
    No S treatment affected the protein concentration in canola seed.

    Feasibility of a New Granular Rapid Release Elemental S Fertilizer in Preventing S Deficiency of Canola on a S-Deficient Soil · 2014

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  4. no effect
    Different sulfur levels had no significant effect on the amount of grain protein.

    IMPROVING THE CONTENT OF OIL, PROTEIN AND SOME YIELD COMPONENTS OF CANOLA IN TWO CALCAREOUS SOIL, CONSEQUENCE THE SULFUR AND CATTLE MANURE APPLICATION · 2012

    Opposite direction

  5. no effect
    Sulfur fertilizer had no effect on total fat and total protein in rapeseed.

    Effects of sulfur fertilizer on yield and quality of rapeseed · 2001

    Opposite direction

  6. positive
    Sulphur increased grain protein on sites with a yield response to sulphur.

    THE EFFECT OF NITROGEN, SULPHUR AND BORON ON YIELD AND QUALITY OF RAPESEED (Brassica napus L. and B. campestris L.) · 1987

    Same direction

  7. positive
    Sulfur deficiency substantially reduced mature seed protein content.

    Species and varietal differences in the proteins of rapeseed · 1969

    Same directionAbout lacking this nutrient, so it counts the other way round

  8. positive
    S increased protein content from 48.9 to 49.9%.

    Effect of NSB fertilizer nutrients on yield and quality of canola in a rotational composite design · 1986

    Same direction

1 paper more in this group

See all 10 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.