Intervention effectmodel-written summary

Reduced nitrogen fertilization reduced nitrogen content and photosynthetic pigment content.

A claim from Photosynthetic Capacity and Productivity of CO2-Enriched Rice (Oryza sativaL.) Under Field Conditions · 2005

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reduced nitrogen fertilization reduced nitrogen content and photosynthetic pigment content.

Taxon
Rice (Oryza sativaL.)Oryza sativat0
Treatment
reduction in N fertilizatione0
Outcome
content of nitrogen and photosynthetic pigmentse0
Direction
reducede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

“a reduction in N fertilization reduced the content of nitrogen and photosynthetic pigments”

✓ located verbatim in the source · abstract, characters 453–543
t0

“Rice (Oryza sativaL.)”

✓ located verbatim in the source · title, characters 57–78

Title

Photosynthetic Capacity and Productivity of CO2-Enriched Rice (Oryza sativaL.) Under Field Conditions

Harry Harmens; David J. Marriott; Trevor W. Ashenden Journal of Crop Improvement 2005. doi:10.1300/j411v13n01_04

Other claims from this paper (5)

Record rev-e5158656960c95eb3075e9f693edea0b79990abaacffdb2e01fbd27ae21e98d3 · schema claims-v0.9 · position 2 in the model’s answer

fertilization · physiology: photosynthesis · Oryza sativa (rice)Positive and negative results

83 papers: 78 positive, 5 negative or no effect

4 papers in the same direction as this claim · 78 in the opposite direction

  1. positive
    Compost increased rice chlorophyll, photosynthetic rate and water use efficiency.

    Influence of Soil Amendments on the Growth and Yield of Rice in Acidic Soil · 2018

    Opposite direction

  2. positive
    Additional nitrogen fertilizer maintained high Rubisco content.

    Cytokinin Effects on Ribulose‐1,5‐Bisphosphate Carboxylase/Oxygenase and Nitrogen Partitioning in Rice during Ripening · 2004

    Opposite direction

  3. positive
    Under optimized nitrogen application, the net photosynthetic rate of the upper three rice leaves was promoted.

    Morphophysiological mechanism of rice yield increase in response to optimized nitrogen management · 2017

    Opposite direction

  4. positive
    CRU maintained higher flag leaf SPAD and photosynthetic rate than MFP and FFP during grain filling.

    Application of Controlled-Release Urea Enhances Grain Yield and Nitrogen Use Efficiency in Irrigated Rice in the Yangtze River Basin, China · 2018 · compared with MFP and FFP

    Opposite direction

  5. positive
    Silicate fertilizer significantly increased photosynthesis rate in rice.

    Taxonomic and functional responses of soil microbial communities to slag-based fertilizer amendment in rice cropping systems · 2019

    Opposite direction

  6. positive
    Band fertilizer placement significantly increased canopy carbon dioxide assimilation over conventional application.

    Nitrogen Economy and Canopy Carbon Dioxide Assimilation of Tropical Lowland Rice · 1990 · compared with conventional fertilizer application methods

    Opposite direction

  7. positive
    Deep N fertilization with straw return (MDS) increased photosynthesis by 17.89%–28.40% compared with MB.

    Nitrogen Deep Placement Combined with Straw Mulch Cultivation Enhances Physiological Traits, Grain Yield and Nitrogen Use Efficiency in Mechanical Pot-Seedling Transplanting Rice · 2022 · compared with MB treatment

    Opposite direction

  8. positive
    Higher nitrogen increased chlorophyll fluorescence and relative chlorophyll content.

    High Nitrogen Fertilization Modulates Morpho-Physiological Responses, Yield, and Water Productivity of Lowland Rice under Deficit Irrigation · 2021

    Opposite direction

74 papers more in this group

See all 83 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.