Intervention effectmodel-written summary

Fe fertilizer increased grain yield of aerobic rice by 4 to 8.2% over control.

A claim from Enhancing iron density and uptake in grain and straw of aerobic rice through mulching and rhizo-foliar fertilization of iron · 2013

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fe fertilizer increased grain yield of aerobic rice by 4 to 8.2% over control.

Taxon
aerobic ricet0
Treatment
Fe fertilizere7
Outcome
grain and straw yielde7
Direction
increasede7
Value
4 to 8.2%e7
Qualifier
graine7
Comparator
controle7

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSetting

Verbatim

e7

“Application of Fe fertilizer increased the grain and straw yield 4 to 8.2% and 2.7 to 6.7% over control, respectively”

✓ located verbatim in the source · abstract, characters 1625–1742
t0

“Enhancing iron density and uptake in grain and straw of aerobic rice”

✓ located verbatim in the source · title, characters 0–68

Title

Enhancing iron density and uptake in grain and straw of aerobic rice through mulching and rhizo-foliar fertilization of iron

Gulab Singh Yadav; Yashbir Singh Shivay; Dinesh Kumar; et al. African Journal of Agricultural Research 2013. doi:10.5897/ajar12.760

Other claims from this paper (11)

Record rev-f938c5aaff6aca517eed554b8e9eb781f8ec29730657fbe51e2e423a8dc21faa · schema claims-v0.9 · position 11 in the model’s answer

iron atom · yield · Oryza sativa (rice)Results differ

71 papers: 57 positive, 14 negative or no effect

56 papers in the same direction as this claim · 13 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Iron application method did not affect grain yield.

    Effect of Iron Application on Rice Plants in Improving Grain Nutritional Quality in Northeastern of Thailand · 2022

    Opposite directionCites this paper

  2. positive
    Combined application of Fe with biochar and poultry manure enhanced rice plant growth, physiology and paddy yield in pH manipulated calcareous soil.

    INTEGRATING THE ORGANIC AMENDMENT WITH IRON FERTILIZATION FOR IMPROVING PRODUCTIVITY AND Fe BIOFORTIFICATION IN RICE UNDER ACIDIFIED CALCAREOUS SOIL · 2016

    Same directionCites this paper

  3. positive
    T4 seed priming gave the maximum grain yield, 6.23 t ha−1.

    Amelioration of Iron Deficiency in Direct Seeded Aerobic Rice ( Oryza Sativa L.) with Iron Seed Priming in Textually Different Soils · 2024

    Same directionCites this paper

  4. positive
    Foliar spray of Fe at 0.1% and B at 0.04% during both stages gave the highest seed yield.

    Agronomic biofortification of basmati rice (Oryza sativa L.) through iron and boron under varying seedling densities · 2024

    Same directionCites this paper

  5. negative
    Iron toxicity reduced rice yields by 16–78 %, averaging 43 %.

    Rice Yield Gap due to Iron Toxicity in West Africa · 2008 · compared with referential yield obtained in a non‐iron‐toxic site

    Opposite direction

  6. no effect
    Foliar-applied Zn, I, Fe or Se did not affect rice grain yield.

    Simultaneous Biofortification of Rice With Zinc, Iodine, Iron and Selenium Through Foliar Treatment of a Micronutrient Cocktail in Five Countries · 2020 · compared with local control (LC)

    Opposite direction

  7. negative
    Iron toxicity reduced rice grain yield by 34.2% in the field.

    Tolerance of rice germplasm to iron toxicity stress and the relationship between tolerance, Fe2+, P and K content in the leaves and roots · 2012

    Opposite direction

  8. negative
    Addition of surplus Fe++ at the booting and early ripening stage decreased rice yield extremely.

    Studies on the Nutrition of Rice Plant with Reference to the Occurrence of the So-called "Akagare" Disease : VI. Changes in the growth, nutrients-absorption and metabolism in plant as influenced by the excessive supply of ferrous iron · 1960

    Opposite direction

62 papers more in this group

See all 71 papers →

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

3,455 papers: 3,183 positive, 272 negative or no effect

3,182 papers in the same direction as this claim · 207 in the opposite direction · 65 reporting no difference from an alternative

  1. positive
    Combined application of Fe with biochar and poultry manure enhanced rice plant growth, physiology and paddy yield in pH manipulated calcareous soil.

    INTEGRATING THE ORGANIC AMENDMENT WITH IRON FERTILIZATION FOR IMPROVING PRODUCTIVITY AND Fe BIOFORTIFICATION IN RICE UNDER ACIDIFIED CALCAREOUS SOIL · 2016

    Same directionCites this paper

  2. 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

  3. no effect
    CRFs had no effect on crop yield.

    Effect of Enhanced Efficiency Fertilizers on Nitrous Oxide Emissions and Crop Yields: A Meta‐analysis · 2016

    Opposite direction

  4. negative
    The authors found fertilizer and irrigation investment had limited effects on rice production.

    Moving toward rice self-sufficiency in sub-Saharan Africa by 2030: Lessons learned from 10 years of the Coalition for African Rice Development · 2021

    Opposite direction

  5. 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

  6. negative
    Without P fertilization, rice produced no panicles or grain.

    Nitrogen, Phosphorus and Potassium Interactions in Upland Rice · 2014

    Opposite direction

  7. negative
    Broadcast and split prilled urea left 11 to 35% of applied nitrogen unrecovered at harvest.

    Nitrogen‐15 Balance and Residual Effects of Urea‐N in Wetland Rice Fields as Affected by Deep Placement Techniques · 1984

    Opposite direction

  8. no effect
    Cow dung manure rates did not significantly affect grain yield or greenhouse gas emissions.

    Influence of rice varieties, organic manure and water management on greenhouse gas emissions from paddy rice soils · 2021

    Opposite direction

3,446 papers more in this group

See all 3,455 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.