Intervention effectmodel-written summary

Topdressed nitrogen did not affect rice when legume cover crops were used.

A claim from Use of nitrogen from fertilizer and cover crops by upland rice in an Oxisol under no-tillage in the Cerrado · 2016

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Topdressed nitrogen did not affect rice when legume cover crops were used.

Treatment
N fertilizer application as topdressinge0
Outcome
Ricee0
Direction
not affectede0
Qualifier
when legume cover crops are usede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Rice is not affected by N fertilizer application as topdressing, when legume cover crops are used.”

✓ located verbatim in the source · abstract, characters 1009–1107

Title

Use of nitrogen from fertilizer and cover crops by upland rice in an Oxisol under no-tillage in the Cerrado

Edson Cabral da Silva; Takashi Muraoka; Vinícius Ide Franzini; et al. Pesquisa Agropecuária Brasileira 2016. doi:10.1590/s0100-204x2016000600004

Other claims from this paper (3)

Record rev-77cf0456d207e8cd2f41252579669a8f4676f4f1de759e022371ee406876acd8 · schema claims-v0.9 · position 1 in the model’s answer

fertilization · organism · Oryza sativa (rice)Positive and negative results

135 papers: 113 positive, 22 negative or no effect

21 papers in the same direction as this claim · 113 in the opposite direction

  1. positive
    NDWR significantly increased brown, milled and head milled rice rate compared with local farmer practice.

    Optimizing integrative cultivation management improves grain quality while increasing yield and nitrogen use efficiency in rice · 2019 · compared with LFP

    Opposite direction

  2. positive
    ONF improved physicochemical and textural properties of milled rice at higher yield levels.

    Optimization of nitrogen fertilization improves rice quality by affecting the structure and physicochemical properties of starch at high yield levels · 2022

    Opposite direction

  3. positive
    Rice yield rose significantly with increasing NPK to the full recommended dose.

    Integrated nutrient management in a rice-wheat system · 1992

    Opposite direction

  4. positive
    Microscopy indicated greater lodging resistance of rice stem cells under controlled-release urea than under conventional urea.

    Controlled‐Release Nitrogen Fertilizer Improved Lodging Resistance and Potassium and Silicon Uptake of Direct‐Seeded Rice · 2019 · compared with urea treatment

    Opposite direction

  5. positive
    In rice, 50% nitrogen substitution with green manure produced maximum grain yield of 7.37 t ha−1, 16.8% above chemical NPK.

    Effect of Long-Term Integrated Nutrient Management on Rice (Oryza sativa L.) - Wheat (Triticum aestivum L.) Productivity and Soil Properties in North-Western Himalaya · 2014 · compared with 100% NPK added through chemical fertilizers

    Opposite direction

  6. positive
    Zinc fertilization raised brown rice zinc by 20%, less than vegetative zinc.

    Zinc Concentration in Rice (Oryza sativaL.) Grains and Allocation in Plants as Affected by Different Zinc Fertilization Strategies · 2016 · compared with vegetative parts

    Opposite direction

  7. positive
    Manure yielded more rice than fertilizer.

    RESPONSE OF WHEAT–RICE AND MAIZE/MILLET SYSTEMS TO FERTILIZER AND MANURE APPLICATIONS IN THE MID-HILLS OF NEPAL · 1999 · compared with fertilizer

    Opposite direction

  8. positive
    Total milled rice percentage was greatest with top-dress nitrogen at IE+28 d for Cocodrie.

    Grain Yield and Milling Quality Response of Two Rice Cultivars to Top‐Dress Nitrogen Application Timings · 2006

    Opposite direction

126 papers more in this group

See all 135 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.