Intervention effectmodel-written summary

The combined vermicompost and nano iron treatment gave the maximum number of seed per row.

A claim from Response of Seed Yield, Its Components and Leaf Area Index of Spring Corn to Consume Vermicompost and Iron Nano fertilizer · 2018

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined vermicompost and nano iron treatment gave the maximum number of seed per row.

Taxon
Spring CornZea mays subsp. mayst0
Treatment
10 t.ha-1 vermicompost with 0.006 L.ha-1 iron Nano fertilizere0
Outcome
number of seed per rowe0
Direction
maximume0
Value
49e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the maximum amount of number of rows per ear (20), number of seed per row (49), 1000 seeds weight (545 gr), seed yield (6000 gr.m-2), biological yield (1939 gr.m-2), harvest index (30%) and leaf area index (5.81) belonged to 10 t.ha-1 vermicompost with 0.006 L.ha-1 iron Nano fertilizer”

✓ located verbatim in the source · abstract, characters 1454–1740
t0

“Spring Corn”

✓ located verbatim in the source · title, characters 62–73

Title

Response of Seed Yield, Its Components and Leaf Area Index of Spring Corn to Consume Vermicompost and Iron Nano fertilizer

Najmeh Razmandeh; Saeed Zakernejad; Khoshnaz Payandeh Journal of Crop Nutrition Science 2018

Other claims from this paper (8)

Record rev-94686b06339491e9b09a4a08d04cef99c8d94c6a3b187605ff807d2318381cd5 · schema claims-v0.9 · position 2 in the model’s answer

iron atom · yield · Zea mays (maize)Results differ

73 papers: 62 positive, 11 negative or no effect

61 papers in the same direction as this claim · 11 in the opposite direction

  1. no effect
    Iron EDTA did not increase dry matter yield.

    Effect of urea and ammonium nitrate on the uptake of iron through leaves · 1984

    Opposite direction

  2. no effect
    Foliar iron or zinc chelate did not improve maize grain yield in field trials.

    Lipid-based Fe- and Zn- nanoformulation is more effective in alleviating Fe- and Zn- deficiency in maize · 2019

    Opposite direction

  3. no effect
    Iron treatments had little or no effect on corn yields

    Availability of Zinc, Copper and Iron in Fusions with Sulfur1 · 1969

    Opposite direction

  4. negative
    Soil iron contamination very strongly reduced maize dry matter yield by 95%.

    Effects of Humic Acids on Calorific Value and Chemical Composition of Maize Biomass in Iron-Contaminated Soil Phytostabilisation · 2024

    Opposite direction

  5. no effect
    Cowpea cover cropping did not affect maize yield.

    Cover crop and nitrogen fertilizer influence on inbred maize performance and soil nitrogen · 2022

    Opposite direction

  6. negative
    The highest soil Fe contamination reduced maize biomass yield by up to 93%.

    Trace Elements in Maize Biomass Used to Phyto-Stabilise Iron-Contaminated Soils for Energy Production · 2024

    Opposite direction

  7. no effect
    K, Mn, B, Mo and Fe had no effect on maize foliage or grain yield.

    Nutritional investigations in irrigated maize on some black earth soils, Darling Downs, Queensland. · 1970

    Opposite direction

  8. negative
    Increasing iron reduced dry matter yield and shoot potassium.

    The response of maize to copper and iron application in sand culture · 2004

    Opposite direction

64 papers more in this group

See all 73 papers →

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

233 papers: 215 positive, 18 negative or no effect

214 papers in the same direction as this claim · 11 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
    Nanoparticle irrigation had mostly insignificant inhibitory effects on long-term shoot production.

    Colloidal suspensions of clay or titanium dioxide nanoparticles can inhibit leaf growth and transpiration via physical effects on root water transport · 2009

    Opposite direction

  2. no effect
    Half NP plus Biopower with BPF or EM gave similar maize yield to full NP.

    Enhancing crop growth, nutrients availability, economics and beneficial rhizosphere microflora through organic and biofertilizers · 2007 · compared with full rate of NP fertilizer

    Opposite direction

  3. negative
    Nitrogen fertilizer treatments showed annual corn yield declines of 94 to 260 kg ha−1 yr−1, except for nonsignificant decline under NPK.

    Effects of Inorganic Fertilizer Inputs on Grain Yields and Soil Properties in a Long‐Term Wheat–Corn Cropping System in South China · 2008

    Opposite direction

  4. negative
    Maize yield under NP was 12.4% lower than under balanced NPK.

    How different long‐term fertilization strategies influence crop yield and soil properties in a maize field in the North China Plain · 2013 · compared with balanced NPK treatment

    Opposite direction

  5. negative
    Under 100% NP, maize grain yield fell 67% in 1994 to 1998 relative to 1973 to 1977.

    EFFECTS OF TWENTY-FIVE YEARS OF FERTILIZER USE ON MAIZE AND WHEAT YIELDS AND QUALITY OF AN ACIDIC SOIL IN THE WESTERN HIMALAYAS · 2003 · compared with 1973 to 1977

    Opposite direction

  6. no effect
    Nano-N with 75% conventional N gave wheat and maize grain yield at par with full conventional fertilizer.

    Changes in microbial community structure and yield responses with the use of nano-fertilizers of nitrogen and zinc in wheat–maize system · 2024 · compared with N 100 PK

    Opposite direction

  7. negative
    Maize yield and nutrient uptake were lower under N and NP than under NPK, NPKS or NPK plus FYM.

    Soil Organic Carbon, Hydraulic Properties and Yield of Maize and Wheat under Long-term Fertilization in an Inceptisol · 2017 · compared with nitrogen, phosphorus and potassium (NPK) applied plot, nitrogen, phosphorus, potassium and sulphur (NPKS) applied plot and NPK+ farmyard manure (FYM) treatment

    Opposite direction

  8. negative
    RT—NP had the lowest leaf area, yield and biomass.

    Effects of Long-term Rotation and Fertilization on the Growth,Yield and Water Use of Spring Maize · 2010

    Opposite direction

224 papers more in this group

See all 233 papers →

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

3,908 papers: 3,485 positive, 423 negative or no effect

3,484 papers in the same direction as this claim · 338 in the opposite direction · 85 reporting no difference from an alternative

  1. negative
    If the V8 sufficiency index was below 90%, in-season nitrogen application did not attain maximum yields.

    Ability for In‐Season Correction of Nitrogen Deficiency in Corn Using Chlorophyll Meters · 1997

    Opposite direction

  2. no effect
    N fertilization did not significantly influence belowground NPP of corn.

    Nitrogen fertilizer effects on soil carbon balances in Midwestern U.S. agricultural systems · 2009

    Opposite direction

  3. negative
    Average grain yield of maize was reduced by 37% at low N (no N fertilizer) compared with high N.

    Improving Nitrogen‐Use Efficiency in European Maize · 2003 · compared with HN

    Opposite direction

  4. no effect
    2 t pm/ha + 30-20-20 kg NPK/ha gave maize biomass and grain yields similar to 4 t pm/ha.

    Poultry manure effect on growth and yield of maize · 2009 · compared with 4 t pm/ha

    Opposite direction

  5. no effect
    Maize yields did not respond to P fertilization.

    Arbuscular mycorrhizal fungi in soil and roots respond differently to phosphorus inputs in an intensively managed calcareous agricultural soil · 2016

    Opposite direction

  6. no effect
    More N fertilizer on the previous small-grain crop rarely increased spring soil nitrate or corn yield.

    Soil Nitrate Accumulation and Corn Response to Preceding Small‐Grain Fertilization and Cover Crops · 1999

    Opposite direction

  7. no effect
    Starter fertilizer did not increase yield.

    Corn Yield is Equal in Conventional, Reduced, and No Tillage after 20 Years · 1996

    Opposite direction

  8. negative
    IC produced the lowest second-year or continuous corn yield.

    Managing Soil Carbon and Nitrogen for Productivity and Environmental Quality · 2004

    Opposite direction

3,899 papers more in this group

See all 3,908 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.