Intervention effectmodel-written summary

ZnSO4 30 kg ha-1 and Nano urea 4 ml lit-1 produced the highest B:C ratio of 2.14.

A claim from Influence of different levels of zinc and nano-urea application on yield and economics of maize · 2025

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ZnSO4 30 kg ha-1 and Nano urea 4 ml lit-1 produced the highest B:C ratio of 2.14.

Taxon
maizeZea mayst0
Treatment
ZnSO4 30 kg ha-1 and Nano urea 4 ml lit-1e0
Outcome
B:C ratioe0
Direction
higheste0
Value
2.14e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of ZnSO4 30 kg ha-1 and Nano urea 4 ml lit-1 resulted in the highest Gross returns (149558.3 ha-1), Net returns (108228.29 ha-1) and B:C ratio (2.14)”

✓ located verbatim in the source · abstract, characters 623–786
t0

“maize”

✓ located verbatim in the source · title, characters 90–95

Title

Influence of different levels of zinc and nano-urea application on yield and economics of maize

Jigyasa Ninama; Victor Debbarma; Dilip Choudhary International Journal of Research in Agronomy 2025. doi:10.33545/2618060x.2025.v8.i4sc.2840

Other claims from this paper (6)

Record rev-e4ba2207a211007203d7623c092a499fdfca71c05a35f3d5238cf6dfe94d141d · schema claims-v0.9 · position 6 in the model’s answer

zinc sulfate · yield · Zea mays (maize)Results differ

128 papers: 124 positive, 4 negative or no effect

123 papers in the same direction as this claim · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Zinc sulfate at 25 versus 35 kg ha -1 did not significantly alter maize grain yield.

    Production and Profitability of Maize as Influenced by Different Levels of Nitrogen, Phosphorus and Zinc in Central Plateau Zone of Maharashtra · 2017

    Opposite direction

  2. no effect
    Zinc sulfate doses produced no change in grain yield.

    FOLIAR FEEDING WITH ZINC AS A BIOFORTIFICATION STRATEGY IN MAIZE · 2019

    Opposite direction

  3. negative
    Foliar ZnSO 4 was less effective than soil applied Zn on the more calcareous soil.

    III. Response of sweet corn to sources of zinc · 1977 · compared with soil‐applied Zn

    Opposite direction

  4. no effect
    M1 plus S8 was on par with M1 plus S4.

    Growth and Yield of Rabi Maize (Zea mays L.) at Different Planting Densities and N-Levels · 2017 · compared with M1 (1,00,000 plants ha-1) and S4 (300 kg N ha-1)

    No difference from an alternative

  5. positive
    Optimal zinc fertilizer increased summer maize grain yield.

    Effects of zinc fertilizer rate and application method on photosynthetic characteristics and grain yield of summer maize · 2016

    Same direction

  6. positive
    ZnSO4 yielded the highest corn dry matter production.

    Influence of water solubility of granular zinc fertilizers on plant uptake and growth · 1999

    Same direction

  7. positive
    Sole and combined zinc and iron sulfate application improved maize yield attributes.

    Biofortification of maize with zinc and iron not only enhances crop growthbut also improves grain quality · 2021

    Same direction

  8. positive
    Foliar spray of ZnSO4 at the 9-leaf stage gave the maximum grain yield in maize hybrid Monsanto-6525.

    Exploring the Role of Zinc in Maize (Zea Mays L.) through Soil and Foliar Application · 2015

    Same direction

119 papers more in this group

See all 128 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 →

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

2,185 papers: 1,906 positive, 279 negative or no effect

1,905 papers in the same direction as this claim · 234 in the opposite direction · 45 reporting no difference from an alternative

  1. negative
    Low nitrogen decreased maize grain yield.

    Within-Leaf Nitrogen Allocation in Adaptation to Low Nitrogen Supply in Maize during Grain-Filling Stage · 2016

    Opposite direction

  2. no effect
    Nitrogen timing did not affect corn production in the other two years.

    Corn Production as Affected by Nitrogen Application Timing and Tillage · 2004

    Opposite direction

  3. negative
    For the two years after 1992, losses were significantly higher for 134 kg N ha−1 on the clay loam.

    Nitrate Leaching and Nitrogen Budget as Affected by Maize Nitrogen Rate and Soil Type · 2000

    Opposite direction

  4. negative
    Nitrogen stress reduced kernel number of maize in field conditions.

    Nitrogen Deficiency in Maize: II. Carbon‐Nitrogen Interaction Effects on Kernel Number and Grain Yield · 1995

    Opposite direction

  5. no effect
    At high N rates, yields under the two tillage systems were approximately equal.

    Soil Nitrogen Availability after Long‐term Continuous No‐tillage and Conventional Tillage Corn Production · 1986

    Opposite direction

  6. negative
    Pretreatment with inhibitors of NOS and nitrate reductase blocked the water stress-induced increase in NO production in maize.

    Nitric Oxide Reduces Hydrogen Peroxide Accumulation Involved in Water Stress‐induced Subcellular Anti‐oxidant Defense in Maize Plants · 2008

    Opposite direction

  7. no effect
    Amending urea with KCI did not significantly change yield, ear-leaf nitrogen or nitrogen uptake in the tested year.

    Nitrogen Fertilizer Source, and Method and Time of Application Effects on No‐till Corn Yields and Nitrogen Uptakes1 · 1986 · compared with unamended surface‐applied counterparts

    Opposite direction

  8. negative
    Rate of dry matter accumulation in maize decreased with declining N supply.

    Influence of N supply on development and dry matter accumulation of an old and a new maize hybrid · 1994

    Opposite direction

2,176 papers more in this group

See all 2,185 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.