Intervention effectmodel-written summary

Nitrogen with Zn+Fe enriched vermicompost gave superior maize stover yield

A claim from Response of Maize (Zea mays L.) to Nitrogen Levels, Conventional and Enriched Organic Manures on Yield and Major Nutrient Uptake in a Vertisol · 2024

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen with Zn+Fe enriched vermicompost gave superior maize stover yield

Taxon
maizeZea mayse3
Treatment
Application of nitrogen at 200 kg ha-1+ Zn+Fe enriched vermicompost at 2.5 t ha-1e1
Outcome
stover yielde1
Direction
superiore1
Value
88.77 q ha-1e1
Comparator
other treatmentse1
Setting
Karnataka, Indiae2

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleQualifier

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

e1

“Application of nitrogen at 200 kg ha-1+ Zn+Fe enriched vermicompost at 2.5 t ha-1 was found superior in terms of grain yield (79.93 q ha-1), stover yield (88.77 q ha-1) and test weight (100 seeds) (39.67 g) over other treatments”

✓ located verbatim in the source · abstract, characters 375–603
e2

“A field experiment was conducted during kharif 2015-16 at Mulmuthla village of Dharwad taluk in Dharwad district, Karnataka, India”

✓ located verbatim in the source · abstract, characters 0–130
e3

“uptake of maize (Zea mays L.)”

✓ located verbatim in the source · abstract, characters 251–280

Title

Response of Maize (Zea mays L.) to Nitrogen Levels, Conventional and Enriched Organic Manures on Yield and Major Nutrient Uptake in a Vertisol

Dilip Kumar M; S. I. Tolanur International Journal of Plant & Soil Science 2024. doi:10.9734/ijpss/2024/v36i54563

Other claims from this paper (3)

Record rev-e57e4fee7eb1aa6d3446164e9ac76eb3ae88889078b1d95e4e536d90373edaf8 · 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 →

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

441 papers: 391 positive, 50 negative or no effect

390 papers in the same direction as this claim · 47 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
    Adding Zn to the intermediate Fe level accentuated Fe deficiency and depressed corn yield.

    Nutrient Balance Involving Phosphorus, Iron, and Zinc · 1965 · compared with intermediate Fe level

    Opposite direction

  2. negative
    Corn yield at zero zinc and 3.0 mM phosphorus was significantly lower than at 1.0 mM phosphorus.

    Potential for Phosphorus Toxicity in Zinc‐Stressed Corn and Potato · 1981 · compared with 1.0 m M P

    Opposite direction

  3. no effect
    Most foliar Zn applications had no grain-yield effect.

    Effect of Foliar Micronutrients (B, Mn, Fe, Zn) on Maize Grain Yield, Micronutrient Recovery, Uptake, and Partitioning · 2021

    Opposite direction

  4. negative
    In a pot experiment the highest Zn rate (250 ppm) slightly reduced corn yield.

    EFFECTS OF SOIL PROPERTIES AND AMENDMENTS ON THE AVAILABILITY OF ZINC IN SOILS · 1974

    Opposite direction

  5. negative
    Zn alone or P alone reduced aboveground dry matter and yield at harvest by 8-85% in LCV and FER soils relative to unfertilized plants

    Combining P and Zn fertilization to enhance yield and grain quality in maize grown on Mediterranean soils · 2021 · compared with unfertilized (control) plants

    Opposite direction

  6. no effect
    Maize grain yield did not respond to zinc application.

    Yield-limiting plant nutrients for maize production in northwest Ethiopia · 2022

    Opposite direction

  7. no effect
    Soil Zn did not affect maize yield at any Cd concentration.

    Cadmium‐zinc interaction in maize grown on sewer water irrigated soil · 1993

    Opposite direction

  8. negative
    Shoot and root dry matter yield depression under Zn stress was 78 to 95 and 72 to 94%, respectively, relative to 5 ppm supplemental Zn.

    Zinc Response in Corn as Influenced by Genetic Variability1 · 1976 · compared with 5 ppm supplemental Zn level

    Opposite direction

432 papers more in this group

See all 441 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. positive
    The high manure treatment increased grain weight per cob to 105.2 g.

    Nutrient uptake, yield and yield parameters of maize (Zea mays L.) as influenced by application of farmyard manure and biodigester liquid manure · 2013

    Same directionCited by this paper

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

2,176 papers more in this group

See all 2,185 papers →

3 of 4 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.