Intervention effectmodel-written summary

Combined N and S fertilizer application at appropriate rates could increase head density and grain yield.

A claim from [Effects of N and S application on grain filling characteristics and yield of winter wheat]. · 2014

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined N and S fertilizer application at appropriate rates could increase head density and grain yield.

Taxon
winter wheatTriticum aestivume0
Material
Xiaoyan 22e0
Treatment
combined application of N and S fertilizerse6
Outcome
head density and grain yielde6
Direction
increasee6
Qualifier
at appropriate ratese6
Setting
Guanzhong Plain, Chinae0

Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValue

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

“A field experiment was conducted on the Guanzhong Plain, China, to evaluate the effects of N and S application on characteristics of winter wheat (cv. Xiaoyan 22) grain filling and yield”

✓ located verbatim in the source · abstract, characters 0–186
e6

“combined application of N and S fertilizers at appropriate rates could increase the head density and grain yield”

✓ located verbatim in the source · abstract, characters 1148–1260

Title

[Effects of N and S application on grain filling characteristics and yield of winter wheat].

Yu-Xia Zhao; Na Li; Fang Zhou; et al. PubMed 2014

Other claims from this paper (8)

Record rev-2eaaf0d499e004a8755ad99aabff378ae307f58b1eee3a564faa6659227d4544 · schema claims-v0.9 · position 8 in the model’s answer

sulfur atom · yield · Triticum aestivum (wheat)Results differ

148 papers: 124 positive, 24 negative or no effect

123 papers in the same direction as this claim · 23 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Sulfur application yielded hardly any benefit.

    Landscape positions dictating crop fertilizer responses in wheat-based farming systems of East African Highlands · 2020

    Opposite direction

  2. no effect
    Sulphur fertiliser had little effect on grain yield or grain nitrogen and sulphur concentration and uptake.

    Management of nitrogen and sulphur fertiliser for improved bread wheat ( Triticum aestivum ) quality · 2001

    Opposite direction

  3. no effect
    Sulfur rate, source and timing did not affect yield on soils with SOM above 20 g kg −1.

    Do Hard Red Spring Wheat Varieties Vary in Their Response to Sulfur? · 2019

    Opposite direction

  4. no effect
    Sulfur did not increase winter wheat grain yield at any site.

    In‐Season Application of Nitrogen and Sulfur in Winter Wheat · 2019

    Opposite direction

  5. no effect
    Sulfur source treatments had a nonsignificant residual effect on wheat grain yield.

    Effect of Direct and Residual Effects of Different Sulfur Fertilizers on Groundnut and Wheat Cropping System on Typic Haplaquent Soils · 2003

    Opposite direction

  6. negative
    Sulfur reduced lentil and wheat yields.

    Evaluation of soil pH manipulation on crop production in northern idaho · 1986

    Opposite direction

  7. no effect
    Zinc and sulfur treatments did not affect wheat biomass production or yield.

    Increasing the supply of sulphur increases the grain zinc concentration in bread and durum wheat · 2009

    Opposite direction

  8. no effect
    Additional S fertilizer produced no observed winter wheat yield response at any location.

    On‐Farm Winter Wheat Response to Nitrogen‐, Phosphorus‐, Potassium‐, and Sulfur‐Rich Strips in Oklahoma · 2017 · compared with farmer's fertility practice

    Opposite direction

139 papers more in this group

See all 148 papers →

nitrogen · yield · Triticum aestivum (wheat)Positive and negative results

2,061 papers: 1,737 positive, 324 negative or no effect

1,736 papers in the same direction as this claim · 285 in the opposite direction · 39 reporting no difference from an alternative

  1. negative
    The lowest N rates reduced grain number per square metre at any given photothermal quotient.

    The effects of radiation and nitrogen on number of grains in wheat · 1995

    Opposite direction

  2. negative
    Severe drought with low nitrogen reduced grain yields.

    Nitrogen Nutrition Improves the Potential of Wheat (Triticum aestivum L.) to Alleviate the Effects of Drought Stress during Vegetative Growth Periods · 2016

    Opposite direction

  3. negative
    Low nitrogen reduced grain yield to 4.3 t/ha.

    The Effects of Prolonged Drought and Nitrogen Fertilizer on Root and Shoot Growth and Water Uptake by Winter Wheat · 1989 · compared with both N and water

    Opposite direction

  4. negative
    Terminal spikelet production was delayed by about 2 d at these N treatments in Aroona.

    Leaf Emergence, Tiller Growth, and Apical Development of Nitrogen‐Dificient Spring Wheat · 1993

    Opposite direction

  5. no effect
    Nitrogen level, N timing and seeding rate had no significant effect on spring wheat grain yield across environments.

    Seeding Rate and Nitrogen Management Effects on Spring Wheat Yield and Yield Components · 2007

    Opposite direction

  6. no effect
    ear weight changed with two nitrogen treatments.

    Effect of source‐sink relations and nitrogen nutrition on senescence and N remobilization in the flag leaf of wheat · 1991

    Opposite direction

  7. negative
    In some environments, higher nitrogen rates lowered wheat yield.

    Graphic Analysis of Genotype, Environment, Nitrogen Fertilizer, and Their Interactions on Spring Wheat Yield · 2004

    Opposite direction

  8. no effect
    Nitrogen timing did not significantly affect grain yield.

    Hard Red Spring Wheat Response to Row Spacing, Seeding Rate, and Nitrogen · 2008

    Opposite direction

2,052 papers more in this group

See all 2,061 papers →

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this claim · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
    Current high nitrogen practices do not significantly raise crop yields relative to optimum fertilization.

    Reducing environmental risk by improving N management in intensive Chinese agricultural systems · 2009 · compared with knowledge-based optimum N fertilization

    Opposite direction

  2. negative
    Wheat yield declined by 0.04 Mg ha −1 yr −1 with 75 and 100% N-P-K fertilizer.

    Yield and Soil Nutrient Changes in a Long‐Term Rice‐Wheat Rotation in India · 2002

    Opposite direction

  3. 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

  4. negative
    Genetic gain in winter wheat yield without fertiliser N was 0.021 t ha −1 y −1, smaller than at 215–250 kg/ha N.

    Responses of grain yield, biomass and harvest index and their rates of genetic progress to nitrogen availability in ten winter wheat varieties · 2006 · compared with 215–250 kg/ha N

    Opposite direction

  5. no effect
    The fertilizing substances did not significantly change plant yields.

    The influence of chlorothalonil on the activity of soil microorganisms and enzymes · 2018

    Opposite direction

  6. no effect
    Compost did not significantly affect wheat grain yield, biomass or harvest index.

    Responses of Wheat Yield, Macro- and Micro-Nutrients, and Heavy Metals in Soil and Wheat following the Application of Manure Compost on the North China Plain · 2016

    Opposite direction

  7. no effect
    Wheat yields were similar in fertilized fallow and unfertilized green-manure plots.

    Wheat Yields, Nitrogen Uptake, and Soil Moisture Following Winter Legume Cover Crop vs. Fallow · 1998 · compared with unfertilized plots following a green manure crop

    Opposite direction

  8. 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

3,429 papers more in this group

See all 3,438 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.