Intervention effectmodel-written summary

Grain yield increased as nitrogen application rose without manure.

A claim from Maize Temporal Yield Variability under Long‐Term Manure and Fertilizer Application: Fractal Analysis · 1995

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain yield increased as nitrogen application rose without manure.

Taxon
MaizeZea mayst0
Treatment
increasing N application ratee0
Outcome
Grain yielde0
Direction
increasede0
Comparator
without manuree0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Grain yield increased with increasing N application rate without manure”

✓ located verbatim in the source · abstract, characters 966–1037
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5

Title

Maize Temporal Yield Variability under Long‐Term Manure and Fertilizer Application: Fractal Analysis

B. Eghball; J. F. Power; G. D. Binford; et al. Soil Science Society of America Journal 1995. doi:10.2136/sssaj1995.03615995005900050023x

Other claims from this paper (5)

Record rev-def684faa007b4c5eeafe4f734cf5b6384367d81e50a1d929b14ca3c189fcc98 · schema claims-v0.9 · position 1 in the model’s answer

nitrogen · yield · Zea mays (maize)Positive and negative results

2,185 papers: 1,906 positive, 279 negative or no effect

1,905 papers in the same direction as this claim · 234 in the opposite direction · 45 reporting no difference from an alternative

  1. positive
    At Kade, major-season grain yield was 3.71 t ha-1 in controls and 4.24 t ha-1 with Actyva at 100 kg N ha-1.

    Comparative study of the efficacy of actyva compound fertilizer (N23 P10 K5 3S 2MgO 0.3Zn) on maize cultivation in the coastal savanna and the humid forest ecologies of Ghana. · 2012 · compared with control

    Same directionCites this paper

  2. negative
    Low nitrogen decreased maize grain yield.

    Within-Leaf Nitrogen Allocation in Adaptation to Low Nitrogen Supply in Maize during Grain-Filling Stage · 2016

    Opposite direction

  3. no effect
    Nitrogen timing did not affect corn production in the other two years.

    Corn Production as Affected by Nitrogen Application Timing and Tillage · 2004

    Opposite direction

  4. negative
    For the two years after 1992, losses were significantly higher for 134 kg N ha−1 on the clay loam.

    Nitrate Leaching and Nitrogen Budget as Affected by Maize Nitrogen Rate and Soil Type · 2000

    Opposite direction

  5. negative
    Nitrogen stress reduced kernel number of maize in field conditions.

    Nitrogen Deficiency in Maize: II. Carbon‐Nitrogen Interaction Effects on Kernel Number and Grain Yield · 1995

    Opposite direction

  6. no effect
    At high N rates, yields under the two tillage systems were approximately equal.

    Soil Nitrogen Availability after Long‐term Continuous No‐tillage and Conventional Tillage Corn Production · 1986

    Opposite direction

  7. negative
    Pretreatment with inhibitors of NOS and nitrate reductase blocked the water stress-induced increase in NO production in maize.

    Nitric Oxide Reduces Hydrogen Peroxide Accumulation Involved in Water Stress‐induced Subcellular Anti‐oxidant Defense in Maize Plants · 2008

    Opposite direction

  8. no effect
    Amending urea with KCI did not significantly change yield, ear-leaf nitrogen or nitrogen uptake in the tested year.

    Nitrogen Fertilizer Source, and Method and Time of Application Effects on No‐till Corn Yields and Nitrogen Uptakes1 · 1986 · compared with unamended surface‐applied counterparts

    Opposite direction

2,176 papers more in this group

See all 2,185 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.