Intervention effectmodel-written summary

Higher irrigation and nitrogen increased wheat yield.

A claim from Impact of various irrigation levels and nitrogen rates on wheat (Triticum aestivum L.) yield and nitrate leaching · 2023

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher irrigation and nitrogen increased wheat yield.

Treatment
higher application of irrigation water and N fertilizere0
Outcome
wheat yielde0
Direction
increasede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“higher application of irrigation water and N fertilizer increased wheat yield and economic returns, and NO3- leaching.”

✓ located verbatim in the source · abstract, characters 1993–2111

Title

Impact of various irrigation levels and nitrogen rates on wheat (Triticum aestivum L.) yield and nitrate leaching

Abdul Ghaffar Khan; Abid Niaz; Shahzadi Mahpara; et al. Journal of King Saud University - Science 2023. doi:10.1016/j.jksus.2023.102940

Other claims from this paper (15)

Record rev-e884aa53f1fd134b26279c5284c56633deec9e5b460fc059e1942b89a77ca608 · schema claims-v0.9 · position 13 in the model’s answer

irrigation · yield · Triticum aestivum (wheat)Positive and negative results

989 papers: 798 positive, 191 negative or no effect

797 papers in the same direction as this claim · 184 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
    Minimum irrigation lowered average winter wheat yield by 14% versus full irrigation.

    Performance of Double‐Cropped Winter Wheat–Summer Maize under Minimum Irrigation in the North China Plain · 2006 · compared with fully irrigated treatment (FI)

    Opposite direction

  2. no effect
    Moderately saline water substituted for good quality water during part of the season maintained total wheat grain yield.

    Time of Salt Stress Affects Growth and Yield Components of Irrigated Wheat · 1994 · compared with good quality water

    Opposite direction

  3. negative
    Saline irrigation caused soil salinization and reduced wheat growth and yield.

    Effect of Straw Biochar on Soil Properties and Wheat Production under Saline Water Irrigation · 2019

    Opposite direction

  4. negative
    Deficit irrigation in salt-affected soil reduced wheat productivity.

    Collaborative Impact of Compost and Beneficial Rhizobacteria on Soil Properties, Physiological Attributes, and Productivity of Wheat Subjected to Deficit Irrigation in Salt Affected Soil · 2022

    Opposite direction

  5. negative
    Wastewater irrigation decreased plant height, leaf area and grain yield in wheat.

    Effect of Wastewater Irrigation on Photosynthesis, Growth, and Anatomical Features of Two Wheat Cultivars (Triticum aestivum L.) · 2020

    Opposite direction

  6. no effect
    An additional 33 mm of irrigation did not increase grain yield.

    Source–sink balance and manipulating sink–source relations of wheat indicate that the yield potential of wheat is sink-limited in high-rainfall zones · 2010

    Opposite direction

  7. no effect
    DI water saving had no effect on wheat yield.

    Yield and water productivity of maize and wheat under deficit and raised bed irrigation practices in Egypt · 2012

    Opposite direction

  8. negative
    Limited irrigation yielded 99% of full irrigation for winter wheat.

    Cropping Systems for Stretching Limited Irrigation Supplies · 1993 · compared with fully irrigated

    Opposite direction

980 papers more in this group

See all 989 papers →

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this claim · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
    Current high nitrogen practices do not significantly raise crop yields relative to optimum fertilization.

    Reducing environmental risk by improving N management in intensive Chinese agricultural systems · 2009 · compared with knowledge-based optimum N fertilization

    Opposite direction

  2. negative
    Wheat yield declined by 0.04 Mg ha −1 yr −1 with 75 and 100% N-P-K fertilizer.

    Yield and Soil Nutrient Changes in a Long‐Term Rice‐Wheat Rotation in India · 2002

    Opposite direction

  3. negative
    The authors concluded that N fertiliser could not compensate for the yield reduction in canola and wheat due to late sowing.

    Effects of sowing time and nitrogen fertiliser on canola and wheat, and nitrogen fertiliser on Indian mustard. I. Dry matter production, grain yield, and yield components · 2001

    Opposite direction

  4. negative
    Genetic gain in winter wheat yield without fertiliser N was 0.021 t ha −1 y −1, smaller than at 215–250 kg/ha N.

    Responses of grain yield, biomass and harvest index and their rates of genetic progress to nitrogen availability in ten winter wheat varieties · 2006 · compared with 215–250 kg/ha N

    Opposite direction

  5. no effect
    The fertilizing substances did not significantly change plant yields.

    The influence of chlorothalonil on the activity of soil microorganisms and enzymes · 2018

    Opposite direction

  6. no effect
    Compost did not significantly affect wheat grain yield, biomass or harvest index.

    Responses of Wheat Yield, Macro- and Micro-Nutrients, and Heavy Metals in Soil and Wheat following the Application of Manure Compost on the North China Plain · 2016

    Opposite direction

  7. no effect
    Wheat yields were similar in fertilized fallow and unfertilized green-manure plots.

    Wheat Yields, Nitrogen Uptake, and Soil Moisture Following Winter Legume Cover Crop vs. Fallow · 1998 · compared with unfertilized plots following a green manure crop

    Opposite direction

  8. no effect
    Incorporation timing of feedlot cattle manure had no impact on soil or crop performance.

    Effect of rate, frequency and incorporation of feedlot cattle manure on soil nitrogen availability, crop performance and nitrogen use efficiency in east-central Saskatchewan · 2004

    Opposite direction

3,429 papers more in this group

See all 3,438 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.