Intervention effectmodel-written summary

Fertilizer spraying after flowering increased grain protein content dramatically.

A claim from Effects of Spraying Nitrogen and Zinc Fertilizers after Flowering on Grain Weight and Nutritional Quality of Winter Wheat · 2013

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilizer spraying after flowering increased grain protein content dramatically.

Taxon
winter wheatTriticum aestivume0
Treatment
fertilizer sprayinge4
Outcome
protein content in grainse4
Direction
increasede4
Qualifier
dramaticallye4

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“grain weight and nutritional quality of different winter wheat cultivars”

✓ located verbatim in the source · abstract, characters 77–149
e4

“The protein content in grains was increased dramatically after fertilizer spraying,and the effect of nitrogen fertilizer was greater than zinc fertilizer”

✓ located verbatim in the source · abstract, characters 580–733

Title

Effects of Spraying Nitrogen and Zinc Fertilizers after Flowering on Grain Weight and Nutritional Quality of Winter Wheat

Guo Tian-cai Mailei zuowu xuebao 2013

Other claims from this paper (13)

Record rev-824efbf164a707e667654a42394d80ed3329385337a6c623dcca1a15352623de · schema claims-v0.9 · position 3 in the model’s answer

application · quality: protein · Triticum aestivum (wheat)Positive and negative results

125 papers: 110 positive, 15 negative or no effect

109 papers in the same direction as this claim · 14 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Foliar fungicide had no effect on grain protein, head density or kernels per head of winter wheat.

    Planting Date and Foliar Fungicide Effects on Yield Components and Grain Traits of Winter Wheat · 2001

    Opposite direction

  2. no effect
    Foliar Zn had no significant effect on wheat grain protein concentration.

    Foliar zinc fertilization improves the zinc nutritional value of wheat (Triticum aestivum L.) grain · 2011

    Opposite direction

  3. no effect
    Foliar fungicide had no effect on wheat grain protein.

    Nitrogen and Foliar Fungicide Effects on Winter Wheats · 1993

    Opposite direction

  4. no effect
    Foliar urea did not decrease varietal differences in kernel protein content.

    Nitrogen Utilization in High and Low Protein Wheat Varieties1 · 1960

    Opposite direction

  5. no effect
    In-crop nitrogen applications were not more effective than application at seeding.

    In-crop application effect of nitrogen fertilizer on grain protein concentration of spring wheat in the Canadian prairies · 2006 · compared with application at the time of seeding

    Opposite direction

  6. negative
    Foliar herbicides significantly decreased essential and non-essential amino acids and protein contents in wheat.

    Fluctuation in amino acids content in Triticum aestivum L. cultivars as an indicator on the impact of post-emergence herbicides in controlling weeds · 2021

    Opposite direction

  7. negative
    Foliar Se application decreased protein content.

    Enhancing nutritional value of common wheat: Impact of foliar selenium application on grain yield and quality under rainfed conditions · 2025

    Opposite direction

  8. no effect
    Foliar fertilisers did not significantly influence crude protein and starch content of spring wheat grain.

    The influence of foliar fertilization with nitrogen, sulphur, amino acids and microelements on spring wheat · 2017

    Opposite direction

116 papers more in this group

See all 125 papers →

fertilization · quality: protein · Triticum aestivum (wheat)Positive and negative results

566 papers: 501 positive, 65 negative or no effect

500 papers in the same direction as this claim · 56 in the opposite direction · 9 reporting no difference from an alternative

  1. no effect
    Adjusting fertilizer N rates for the N contribution of the previous pulse crop effectively neutralized the benefits on wheat yield and protein relative to mustard.

    Pulse Crops for the Northern Great Plains · 2003 · compared with mustard

    Opposite direction

  2. no effect
    Fertilizer timing did not influence protein concentration.

    Influence of nitrogen application rate and timing on grain protein composition and gluten strength in Swedish wheat cultivars · 2004

    Opposite direction

  3. negative
    Failure to apply N fertilizer to continuous wheat gave the lowest grain protein, about 13.5%.

    FIRST 12 YEARS OF A LONG-TERM CROP ROTATION STUDY IN SOUTHWESTERN SASKATCHEWAN — YIELDS AND QUALITY OF GRAIN · 1983

    Opposite direction

  4. no effect
    Grain protein concentration and N uptake were similar for CRU and seed-placed urea.

    Controlled-release urea for winter wheat in southern Alberta · 2007 · compared with seed-placed urea

    Opposite direction

  5. no effect
    Fertiliser P had no significant effect on protein concentration in wheat grain.

    Comparing the nitrogen and phosphorus requirements of canola and wheat for grain yield and quality · 2009

    Opposite direction

  6. no effect
    Fertilizer potassium had no significant effect on grain protein concentration in canola and wheat.

    Comparing the Nitrogen and Potassium Requirements of Canola and Wheat for Yield and Grain Quality · 2009

    Opposite direction

  7. no effect
    Cu fertilization had no effect on protein concentration in wheat grain.

    Relative effectiveness of various sources, methods, times and rates of copper fertilizers in improving grain yield of wheat on a Cu-deficient soil · 2005

    Opposite direction

  8. no effect
    Increasing wheat sowing proportion with N fertilization did not improve wheat grain protein concentration.

    Crop Management Affects the Performance of a Winter Pea–Wheat Intercrop · 2016

    Opposite direction

557 papers more in this group

See all 566 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.