Intervention effectmodel-written summary

Nitrogen application methods significantly increased rice yield.

A claim from Research of Nitrogen Application on Super Rice Yield and Nitrogen Efficiency in Jilin Province · 2012

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen application methods significantly increased rice yield.

Treatment
Different N application methodse0
Outcome
rice yielde0
Direction
increasede0
Comparator
no nitrogen fertilizere1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

“Different N application methods could increased rice yield significantly”

✓ located verbatim in the source · abstract, characters 346–418
e1

“Compared with no nitrogen fertilizer,nitrogen fertilizer increased the number of tillers of rice significantly”

✓ located verbatim in the source · abstract, characters 564–674

Title

Research of Nitrogen Application on Super Rice Yield and Nitrogen Efficiency in Jilin Province

Yubo Qin Jilin Agricultural Sciences 2012

Other claims from this paper (5)

Record rev-dd10b59ec22eb57331cd1f52cfb625e01bb62e1f4f8faa4d3cc887776f019dc7 · schema claims-v0.9 · position 2 in the model’s answer

nitrogen · yield · Oryza sativa (rice)Positive and negative results

2,045 papers: 1,803 positive, 242 negative or no effect

1,802 papers in the same direction as this claim · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. negative
    Green manure and rice straw nitrogen, alone or in combination with inorganic N, gave lower grain yield, agronomic efficiency and apparent nitrogen uptake than a standard split application of prilled urea.

    Long-term Comparison of the Agronomic Efficiency and Residual Benefits of Organic and Inorganic Nitrogen Sources for Tropical Lowland Rice · 1996 · compared with a standard split application of prilled urea

    Opposite direction

  2. negative
    Chaffy grain number and chaffy grain weight per 5 panicles increased significantly with enhancing nitrogen doses.

    Physiological response of rice (Oryza sativaL.) genotypes to elevated nitrogen applied under field conditions · 2014

    Opposite direction

  3. negative
    Excessive nitrogen yielded 2.68–6.31% less than appropriate nitrogen application.

    Excessive Nitrogen Application Leads to Lower Rice Yield and Grain Quality by Inhibiting the Grain Filling of Inferior Grains · 2022 · compared with appropriate nitrogen application (270 kg N ha−1)

    Opposite direction

  4. negative
    SCU reduced rice yield, though not significantly.

    Effects of different types of slow- and controlled-release fertilizers on rice yield · 2021

    Opposite direction

  5. negative
    Preflood urea applied 14 days early yielded lowest grain yield of rice.

    Ammonia Volatilization and Nitrogen Uptake for Conventional and Conservation Tilled Dry‐Seeded, Delayed‐Flood Rice · 2007

    Opposite direction

  6. no effect
    Applying 30 kg N ha−1 at each SPAD drop below 37.5 gave rice yields equivalent to 120 kg N ha−1 applied in three splits

    Chlorophyll Meter– and Leaf Color Chart–Based Nitrogen Management for Rice and Wheat in Northwestern India · 2002 · compared with 120 kg N ha−1 applied in three splits

    Opposite direction

  7. no effect
    Ammonium sulphate nitrate gave growth, yield and grain nitrogen results statistically at par with Super Net.

    EFFECT OF NITROGEN FERTILIZERS ON GROWTH, YIELD AND QUALITY OF HYBRID RICE (ORYZA SATIVA) · 2005 · compared with sulphur-containing nitrogen fertilizer-Super Net

    Opposite direction

  8. negative
    Rice straw plus urea mix-application (SU) gave lower rice plant growth, yield and nutrient accumulation.

    Application of different organic and mineral fertilizers on the growth, yield and nutrient accumulation of rice in a Japanese ordinary paddy field · 2010

    Opposite direction

2,036 papers more in this group

See all 2,045 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.