Intervention effectmodel-written summary

Foliar fertilizers increased harvest index by 4.4% to 7.5%

A claim from WINTER OILSEED RAPE YIELD DEPENDING ON FOLIAR FERTILIZATION · 2020

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar fertilizers increased harvest index by 4.4% to 7.5%

Taxon
winter oilseed rapeBrassica napuse0
Treatment
Foliar fertilizerse3
Outcome
harvest indexe3
Direction
increasede3
Value
4.4% to 7.5%e3
Comparator
control variante1
Setting
Zawady Agricultural Experimental Statione2

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleQualifier

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“on the seed yield of three winter oilseed rape morphotypes”

✓ located verbatim in the source · abstract, characters 333–391
e1

“The control variant – without foliar feeding and amino acids applied”

✓ located verbatim in the source · abstract, characters 956–1024
e2

“The study was carried out in 2016-2019 at the Zawady Agricultural Experimental Station”

✓ located verbatim in the source · abstract, characters 438–524
e3

“Foliar fertilizers used in the experiment increased the thousand seed weight (on average in the range from 0.9% to 3.4%), seed yield (on average in the range from 2.5% to 18.5%), straw yield (on average in the range from 2.1% to 5.4%) and the harvest index (on average in the range from 4.4% to 7.5%)”

✓ located verbatim in the source · abstract, characters 1206–1506

Title

WINTER OILSEED RAPE YIELD DEPENDING ON FOLIAR FERTILIZATION

Anna Sikorska; Marek Gugała; Krystyna Zarzecka Acta Scientiarum Polonorum Agricultura 2020. doi:10.37660/aspagr.2020.19.1.2

Other claims from this paper (10)

Record rev-c5da4f01f6b20feb819a4b33e71c86f9f24235b172a6785f9a077f6f0dc768a5 · schema claims-v0.9 · position 4 in the model’s answer

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

93 papers: 85 positive, 8 negative or no effect

84 papers in the same direction as this claim · 8 in the opposite direction

  1. positive
    Foliar boron at early flowering increased yields by up to 10%.

    Growth, yield, and yield components of canola as affected by nitrogen, sulfur, and boron application · 2015

    Same directionCited by this paper

  2. positive
    Autumn foliar fertilization increased plant density before harvest.

    The response of winter oilseed rape to diverse foliar fertilization · 2019

    Same directionCited by this paper

  3. positive
    Variants D and E significantly increased pods per plant, seed yield, and fat yield versus control.

    The Reaction of Winter Oilseed Rape to Different Foliar Fertilization with Macro- and Micronutrients · 2021 · compared with the control

    Same directionCites this paper

  4. negative
    Foliar applications yielded 30% of in-furrow treatments during high flea beetle stress.

    Potential for Insecticidal Management of Flea Beetle (Coleoptera: Chrysomelidae) on Canola · 1991 · compared with in-furrow treatments

    Opposite direction

  5. negative
    Higher dose or later spraying increased root biomass allocation and resistance but lowered yield.

    Effects of paclobutrazol on biomass production in relation to resistance to lodging and pod shattering in Brassica napus L. · 2017

    Opposite direction

  6. no effect
    Additional foliar fertilization did not affect flower number or pollen grains per flower.

    The impact of foliar fertilization on the number of bees (Apoidea) on spring oilseed rape. · 2012

    Opposite direction

  7. negative
    Two foliar boron sprays applied at five different growth stages slightly decreased root yield of rutabaga.

    EFFECTS OF FOLIAR SPRAYS OF BORON APPLIED AT DIFFERENT STAGES OF GROWTH ON INCIDENCE OF BROWN-HEART IN RUTABAGAS · 1987

    Opposite direction

  8. no effect
    Canola leaf area index, seed yield and thousand seed weight were unaffected by simulated imazamethabenz spray drift at the dosages examined.

    Response of four annual broadleaf crops to simulated imazamethabenz spray drift · 1995

    Opposite direction

84 papers more in this group

See all 93 papers →

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

378 papers: 337 positive, 41 negative or no effect

336 papers in the same direction as this claim · 37 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
    Autumn foliar fertilization increased plant density before harvest.

    The response of winter oilseed rape to diverse foliar fertilization · 2019

    Same directionCited by this paper

  2. positive
    Variants D and E significantly increased pods per plant, seed yield, and fat yield versus control.

    The Reaction of Winter Oilseed Rape to Different Foliar Fertilization with Macro- and Micronutrients · 2021 · compared with the control

    Same directionCites this paper

  3. positive
    Fertilization in the dry-spring year raised shoot dry weight, pods per plant and seeds per pod of oilseed rape.

    Technology of winter oilseed rape with foliar fertilization. · 2019 · compared with control

    Same directionCited by this paper

  4. negative
    The authors concluded that N fertiliser could not compensate for the yield reduction in canola and wheat due to late sowing.

    Effects of sowing time and nitrogen fertiliser on canola and wheat, and nitrogen fertiliser on Indian mustard. I. Dry matter production, grain yield, and yield components · 2001

    Opposite direction

  5. no effect
    Incorporation timing of feedlot cattle manure had no impact on soil or crop performance.

    Effect of rate, frequency and incorporation of feedlot cattle manure on soil nitrogen availability, crop performance and nitrogen use efficiency in east-central Saskatchewan · 2004

    Opposite direction

  6. no effect
    Fertilizer timing had little effect on crop yield.

    Combining agronomic practices and herbicides improves weed management in wheat–canola rotations within zero-tillage production systems · 2005

    Opposite direction

  7. no effect
    Nutrient applications were unnecessary to raise canola yield in fertile fields.

    Effects of Manure and Fertilizer Applications on Canola Oil Content and Fatty Acid Composition · 2010

    Opposite direction

  8. no effect
    The HI-S:total S ratio was not affected by nitrogen fertilizer application at normal field rates in a growth chamber study.

    USE OF PLANT ANALYSIS TO PREDICT SULFUR DEFICIENCY IN RAPESEED (Brassica napus and B. campestris) · 1983

    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.