Intervention effectmodel-written summary

Spring ammonium nitrate fertilizing by scattering on thawed/frozen soil was less efficient, with a productivity increase from 0.21 t/ha after peas to 0.65 t/ha after maize.

A claim from The choice of the terms and methods of nitrogen additional fertilizing for winter bread wheat in the southern part of the Rostov region · 2020

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spring ammonium nitrate fertilizing by scattering on thawed/frozen soil was less efficient, with a productivity increase from 0.21 t/ha after peas to 0.65 t/ha after maize.

Taxon
winter bread wheatTriticum aestivumt0
Treatment
ammonium nitrate fertilizing by the scattering method in the spring on thawed/frozen soile0
Outcome
productivitye0
Direction
increasee0
Value
0.21 t/ha sown after peas to 0.65 t/ha sown after maizee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

t0

“winter bread wheat”

✓ located verbatim in the source · title, characters 75–93
e0

“ammonium nitrate fertilizing by the scattering method in the spring on thawed/frozen soil was lower, the productivity increase ranged from 0.21 t/ha sown after peas to 0.65 t/ha sown after maize”

✓ located verbatim in the source · abstract, characters 1096–1290

Title

The choice of the terms and methods of nitrogen additional fertilizing for winter bread wheat in the southern part of the Rostov region

A. A. Sukharev; G. M. Zelenskaya Grain Economy of Russia 2020. doi:10.31367/2079-8725-2020-69-3-43-47

Other claims from this paper (13)

Record rev-fd955ee7ae1fe6bf0e85eefb6616112627cbe5769cfae870edcd14b8ac612d25 · schema claims-v0.9 · position 8 in the model’s answer

ammonium nitrate · yield · Triticum aestivum (wheat)Positive and negative results

54 papers: 49 positive, 5 negative or no effect

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

  1. negative
    Spring broadcast of urea and AN gave negligible grain yield response in one trial.

    No‐till Winter Wheat Production on the Canadian Prairies: Placement of Urea and Ammonium Nitrate Fertilizers · 1989

    Opposite direction

  2. negative
    Early AN stimulation became detrimental during high-temperature stem elongation.

    No‐till Winter Wheat Production: Response to Spring Applied Nitrogen Fertilizer Form and Placement · 1991

    Opposite direction

  3. negative
    Late broadcast AN and urea produced lower dry matter yields than early applications.

    No‐Till Winter Wheat Dry Matter and Tissue Nitrogen Response to Nitrogen Fertilizer Form and Placement · 1991 · compared with early broadcast AN and urea

    Opposite direction

  4. negative
    Sprayed ammonium nitrate/urea solution gave the smallest yields.

    Experiments evaluating aqueous ammonia, aqueous urea and a solution of ammonium nitrate and urea as nitrogenous fertilizers for winter wheat · 1977

    Opposite direction

  5. negative
    Wheat grain yield was lower with ammonium nitrate because plants lodged.

    Sources and management of nitrogen before or after irrigation on the winter wheat and bean production · 2020

    Opposite direction

  6. positive
    In the low fertility zone, increasing ammonium nitrate fertilization from 50 to 350 kg/ha raised wheat yield by 26%.

    A study of the responsiveness of crops to fertilizers by zones of stable intra-field heterogeneity based on big satellite data analysis · 2019 · compared with 50 kg ha−1

    Same direction

  7. positive
    ammonium nitrate had a similar wheat grain yield increase over urea.

    Agricultural Management of Enhanced‐Efficiency Fertilizers in the North‐Central United States · 2008 · compared with urea

    Same direction

  8. positive
    Ammonium nitrate produced significantly higher grain yields than urea at 67 kg N/ha at either application date.

    Winter Wheat Recropping on Dryland as Affected by Stubble Height and Nitrogen Fertilization · 1977 · compared with urea

    Same direction

45 papers more in this group

See all 54 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.