Intervention effectmodel-written summary

Phosphate fertilization significantly increased corn yield components from the second season.

A claim from Increasing Rates of Phosphate Fertilizer with and without Controlled Release on Corn and Soybean in the Brazilian Cerrado Region

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Phosphate fertilization significantly increased corn yield components from the second season.

Treatment
phosphate fertilizatione0
Outcome
corn yield componentse0
Direction
increasede0
Qualifier
from the second season after the operatione0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

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

t0

“Corn and Soybean”

✓ located verbatim in the source · title, characters 80–96
e0

“phosphate fertilization significantly increased corn yield components from the second season after the operation”

✓ located verbatim in the source · abstract, characters 468–580

Title

Increasing Rates of Phosphate Fertilizer with and without Controlled Release on Corn and Soybean in the Brazilian Cerrado Region

Luiz Cláudio Garcia; Felipe Augusto Rogrigues Vaurof; Welington Massinham; et al. RePEc: Research Papers in Economics

Other claims from this paper (3)

Record rev-6bb8a1d96b35228921b65fb50fb54262b9f3feb20b3a0931ae8ff47a602b914a · schema claims-v0.9 · position 1 in the model’s answer

phosphate · yield · Zea mays (maize)Results differ

23 papers: 20 positive, 3 negative or no effect

19 papers in the same direction as this claim · 3 in the opposite direction

  1. negative
    Non-stabilized urea-di-ammonium phosphate fertilization was largely ineffective for maize field establishment, nutrient acquisition and yield

    The Form of N Supply Determines Plant Growth Promotion by P-Solubilizing Microorganisms in Maize · 2019

    Opposite direction

  2. no effect
    In 2015, grain yield with rock phosphate residues and no annual phosphate was not superior to control.

    Maize yield influenced by the residual effects of sedimentary phosphates in high-calcium soil · 2020 · compared with control treatment

    Opposite direction

  3. no effect
    Production system and phosphate fertilizer did not influence corn grain productivity.

    Phosphate fertilization in a corn-Urochloa intercrop system · 2025

    Opposite direction

  4. positive
    Half recommended phosphorus fertilizer gave better maize yield.

    The effect of phosphate solubilizing microbe producing growth regulators on soil phosphate, growth and yield of maize and fertilizer efficiency on Ultisol · 2014

    Same direction

  5. positive
    OMF gave higher first-cultivation dry matter yield.

    Agronomic and P recovery efficiency of organomineral phosphate fertilizer from poultry litter in sandy and clayey soils · 2017 · compared with MAP

    Same direction

  6. positive
    Phosphate fertilization increased corn productivity relative to the unfertilized control.

    Organomineral Phosphorus Fertilization in the Production of Corn, Soybean and Bean Cultivated in Succession · 2017 · compared with control

    Same direction

  7. positive
    PW and DCP in a 2:1 P ratio gave maximum maize dry matter yield.

    Yield and phosphorus-uptake by crops as influenced by chemical fertilizer and integrated use of industrial by-products · 2005

    Same direction

  8. positive
    Biological phosphate fertilizer generally improved corn production.

    THE EFFECT OF DIFFERENT LEVELS OF PHOSPHORUS FROM TRIPLE SUPERPHOSPHATE CHEMICAL FERTILIZERS AND BIOLOGICAL PHOSPHATE FERTILIZER (FERTILE 2) ON PHYSIOLOGICAL GROWTH PARAMETERS OF CORN (SC704) IN AHVAZ WEATHER CONDITIONS · 2014

    Same direction

14 papers more in this group

See all 23 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.