Intervention effectmodel-written summary

USG at 78 kg ha-1 maximized apparent N recovery, N use efficiency, gross margin and marginal benefit-cost ratio.

A claim from Study of nitrogen use efficiency and yield of rice influenced by deep placement of nitrogen fertilizers · 2019

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

USG at 78 kg ha-1 maximized apparent N recovery, N use efficiency, gross margin and marginal benefit-cost ratio.

Treatment
USG 78 kg ha-1e0
Outcome
maximum apparent N recovery, N use efficiency, gross margin and marginal benefit-cost ratioe0
Direction
maximume0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“USG 78 kg ha-1 showed maximum apparent N recovery, N use efficiency, gross margin and marginal benefit-cost ratio.”

✓ located verbatim in the source · abstract, characters 1222–1336
t0

“rice”

✓ located verbatim in the source · title, characters 46–50

Title

Study of nitrogen use efficiency and yield of rice influenced by deep placement of nitrogen fertilizers

RS Rea; MR Islam; MM Rahman; et al. SAARC Journal of Agriculture 2019. doi:10.3329/sja.v17i1.42764

Other claims from this paper (9)

Record rev-6c3e4f883c2cd07b898e09d96b5a8ce17c3bc86de0d24d412f0be7699005e004 · schema claims-v0.9 · position 9 in the model’s answer

nitrogen · yield · Oryza sativa (rice)Positive and negative results

2,045 papers: 1,803 positive, 242 negative or no effect

1,802 papers in the same direction as this claim · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. no effect
    Further nitrogen supply did not increase yield and nitrogen efficiencies.

    Eco-friendly cellulose hydrogels as controlled release fertilizer for enhanced growth and yield of upland rice · 2023

    Opposite directionCites this paper

  2. positive
    Grain and straw yields increased with nitrogen rate up to 120 kg ha-1.

    Effect of Organic and Inorganic Sources and Doses of Nitrogen Fertilizer on the Yield of Boro Rice · 2012

    Same directionCited by this paper

  3. positive
    T2 at 282 kg urea ha-1 gave the highest grain yield of 5.34 t ha-1.

    Soil and foliar application of nitrogen for Boro rice (BRRIdhan 29) · 1970

    Same directionCited by this paper

  4. positive
    T5 gave the maximum grain yield, statistically similar to T3.

    Effect of deep placement of nitrogen fertilizers on rice yield and N use efficiency under water regimes · 2016 · compared with USG, 156 kg N ha-1

    Same directionCited by this paper

  5. positive
    Treatment of 56 kg N ha-1 USG with 3 t ha-1 poultry manure gave the highest grain yield, compared with the control.

    Effects of Integrated Use of Prilled Urea, Urea Super Granule and Poultry Manure on Yield of Transplant Aus Rice and Field Water Quality · 2014 · compared with T1 (control)

    Same directionCited by this paper

  6. positive
    NCU nitrogen rates up to 100 kg/ha significantly improved rice grain yield.

    Effect of Neem Oil Coated and Common Urea with Different Nitrogen Levels on Rice Yield and Nitrogen Use Efficiency (NUE) in Kaski, Nepal · 2023

    Same directionCites this paper

  7. positive
    Urea super granule increased rice grain yield by 6–18% compared with the recommended dose of N across sites and seasons.

    Village level fertilizer management for increasing nitrogen use efficiency, rice yield and household income · 2025 · compared with RDN

    Same directionCites this paper

  8. positive
    USG at 7 DAT under AWD produced the highest plant height, effective tiller number and panicle length.

    Effects of nitrogenous fertilizers on rice yield under continuous flooding and alternate wetting and drying conditions · 2021

    Same directionCites this paper

2,036 papers more in this group

See all 2,045 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.