Intervention effectmodel-written summary

The combination of 150 kg N/fad and 30 kg P2O5/fad gave the highest maize grain yield per plant.

A claim from EFFECT OF PRECEDING WINTER CROPS, NITROGEN AND PHOSPHORUS FERTILIZER LEVELS ON GROWTH AND YIELD OF MAIZE (Zea mays L.) · 2003

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combination of 150 kg N/fad and 30 kg P2O5/fad gave the highest maize grain yield per plant.

Taxon
maizeZea mayse0
Treatment
150 kg N/fad and 30 kg P2O5 /fade0
Outcome
grain yield /plante0
Direction
higheste0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

“highest values of grain yield /plant of maize were obtained with 150 kg N/fad and 30 kg P2O5 /fad in both seasons”

✓ located verbatim in the source · abstract, characters 1501–1614

Title

EFFECT OF PRECEDING WINTER CROPS, NITROGEN AND PHOSPHORUS FERTILIZER LEVELS ON GROWTH AND YIELD OF MAIZE (Zea mays L.)

M. Badr,; S. Bassal; E. Ibrahim Journal of Plant Production 2003. doi:10.21608/jpp.2003.252708

Other claims from this paper (6)

Record rev-d1c9271bdcbab2a79dda2f8a485ba34781f2a1f3ee1f064ede5bb87ddac9c4f3 · schema claims-v0.9 · position 6 in the model’s answer

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

627 papers: 549 positive, 78 negative or no effect

548 papers in the same direction as this claim · 69 in the opposite direction · 9 reporting no difference from an alternative

  1. no effect
    Phosphorus-based manure or compost application gave corn grain yields similar to N-based treatments.

    Phosphorus‐ and Nitrogen‐Based Manure and Compost Applications Corn Production and Soil Phosphorus · 1999 · compared with N‐based treatments

    Opposite direction

  2. no effect
    No effect of P fertilizer on maize yield was detected early in the trial.

    SUSTAINABLE MAIZE PRODUCTION USING GLIRICIDIA/MAIZE INTERCROPPING IN SOUTHERN MALAWI · 2006

    Opposite direction

  3. negative
    Lowest phosphorus supply significantly depressed maize shoot dry matter.

    Effect of Selected Mycorrhizal Inoculation on Phosphorus Sustainability in Sterile and Non‐sterile Soils in the Harran Plain in South Anatolia · 2003

    Opposite direction

  4. no effect
    plant ha-1 at harvest was not significantly affected by nitrogen and phosphorus levels.

    Effect of Different Levels of Nitrogen and Phosphorus on the Phenology and Yield of Maize Varieties · 2014

    Opposite direction

  5. no effect
    Phosphorus had no effect on dry matter yield.

    The Effect of Nitrogen and Phosphorus Fertilization on Growth, Yield and Quality of Forage Maize (Zea mays L.) · 2006

    Opposite direction

  6. no effect
    Maize yields did not increase where NP was applied.

    Trends of Yield and Soil Fertility in a Long-Term Wheat-Maize System · 2014

    Opposite direction

  7. negative
    Annual blanket N, P and K rates did not produce optimum maize yield under intensive land use.

    Response of maize to nitrogen, phosphorus, and potassium fertilizers in the savanna zones of Nigeria · 1995

    Opposite direction

  8. no effect
    Grain yield seldom responded to P and K fertilization.

    Over‐Fertilization Does Not Build Soil Test Phosphorus and Potassium in Ohio · 2018

    Opposite direction

618 papers more in this group

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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
    Preceding crop and nitrogen source interacted to significantly increase grain yield in the second season.

    EFFECT OF PRECEDING CROPS, ORGANIC AND MINERAL NITROGEN AND PLANT DENSITY ON PRODUCTIVITY OF MAIZE PLANT · 2002

    Same directionCited by this paper

  2. positive
    Each nitrogen increase to 125 kg/fad significantly increased plant height, leaf area and ear length.

    RESPONSE OF SOME MAIZE HYBRIDS TO NITROGEN FERTILIZER LEVELS UNDER CULTIVATED SANDY SOILS. · 2009

    Same directionCites this paper

  3. positive
    Nitrogen application up to 120 kg N/fed. significantly increased grain yield and its components of maize.

    Impact of Water Stress and Nitrogen Fertilizer on Yield, Yield Components and Quality of Maize Hybrids (zea mays l.). · 2010

    Same directionCites this paper

  4. positive
    Ammonium sulphate with compost at 120 kg N/fed. was the better treatment for maize grain yield and its components.

    INFLUENCE OF MINERAL AND NITROGEN FERTILIZATION ON MAIZE YIELD AND ITS COMPONENTS · 2009

    Same directionCites this paper

  5. 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

  6. 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

  7. 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

  8. 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

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.