Intervention effectmodel-written summary

Combined Azolla, straw and full NPKS application produced higher rice grain yield.

A claim from Rice straw incorporation and Azolla application improves agronomic nitrogen-use-efficiency and rice grain yields in paddy fields · 2024

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined Azolla, straw and full NPKS application produced higher rice grain yield.

Treatment
Azolla, rice straw +100 kg N ha -1 + 30 kg P ha -1 + 30 kg K ha -1 + 20 kg S ha -1e0
Outcome
rice grain yielde0
Direction
highere0

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

“combination of Azolla, rice straw +100 kg N ha -1 + 30 kg P ha -1 + 30 kg K ha -1 + 20 kg S ha -1 resulted in higher rice grain yield, nitrogen uptake and agronomic efficiency of N”

✓ located verbatim in the source · abstract, characters 1513–1693

Title

Rice straw incorporation and Azolla application improves agronomic nitrogen-use-efficiency and rice grain yields in paddy fields

Said H. Marzouk; Johnson M. Semoka; Nyambilila A. Amuri; et al. Frontiers in Soil Science 2024. doi:10.3389/fsoil.2024.1378065

Other claims from this paper (4)

Record rev-f98bd57ae3a27c9a67d55a93620bd16f532c07670495a95d65c05a6540e8623a · schema claims-v0.9 · position 1 in the model’s answer

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

47 papers: 43 positive, 4 negative or no effect

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

  1. positive
    The integrated treatment gave rice 457 panicles per m2, the highest among treatments.

    Integrated rice farming systems for improved growth, yield and pest reduction · 2024

    Same directionCites this paper

  2. positive
    Azolla with 40 kg N ha⁻¹ produced 3.7 t ha⁻¹ grain yield, 68% above control.

    Integrating Azolla with Reduced Nitrogen Fertilizer Improves Weed Suppression, Productivity and Profitability of Lowland Rice Systems · 2026 · compared with the control

    Same directionCites this paper

  3. no effect
    Azolla did not significantly increase rice yield.

    POTENSI AZOLLA SEBAGAI SUBSTITUSI PUPUK KANDANG PADA BUDIDAYA PADI ORGANIK · 2018

    Opposite direction

  4. no effect
    NK plus Azolla produced rice yield comparable to inorganic fertilizer alone.

    Effect of the Biofertilizer (Azolla pinnata) in Combination with Inorganic Fertilizers on Growth and Yield of Rice · 2021 · compared with inorganic fertilizer only

    No difference from an alternative

  5. no effect
    Double incorporation of Azolla alone gave a rice grain yield equivalent to that of 60 kg N/ha ammonium sulphate.

    Research and Development Note: The utilization of Azolla as a source of nitrogen for rice production in Ghana · 1996 · compared with 60 kg N/ha ammonium sulphate

    No difference from an alternative

  6. no effect
    Incorporation of 10 t pressmud ha−1 + 1 t Azolla ha−1 gave rice grain yield at par with hand weeding twice (5.72 t ha−1).

    WEED MANAGEMENT IN RICE AND ITS CARRY OVER EFFECT ON SUCCEEDING BLACK GRAM · 2006 · compared with hand weeding twice

    No difference from an alternative

  7. positive
    Sesbania plus Azolla in 1986/87 increased rice yield over split urea.

    Integrated management of Sesbania, Azolla and urea nitrogen in lowland rice under a rice–wheat cropping system · 1989 · compared with split application of 80 kg N/ha as PU

    Same direction

  8. positive
    Azolla application increased rice grain and straw yields.

    Comparative studies on different methods of Azolla utilization in rice culture · 1986

    Same direction

38 papers more in this group

See all 47 papers →

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. positive
    At high density, rice grain yield was highest at 180 kg ha-1 nitrogen.

    Improving rice population productivity by reducing nitrogen rate and increasing plant density · 2017

    Same directionCited by this paper

  2. positive
    Sulphur coated urea produced the highest kernel yield relative to granular urea in both years.

    Sulphur coated urea improves morphological and yield characteristics of transplanted rice (Oryza sativa L.) through enhanced nitrogen uptake · 2021 · compared with UG

    Same directionCited by this paper

  3. positive
    Rice grain yield responded positively to 138–276 kg ha−1 nitrogen rates, reaching 4.2–5.2 tons ha−1.

    Influence of nitrogen on the growth and use efficiency of rainfed lowland rice in northwest Ethiopia · 2020

    Same directionCited by this paper

  4. positive
    The integrated treatment gave rice 457 panicles per m2, the highest among treatments.

    Integrated rice farming systems for improved growth, yield and pest reduction · 2024

    Same directionCites this paper

  5. positive
    Azolla with 40 kg N ha⁻¹ produced 3.7 t ha⁻¹ grain yield, 68% above control.

    Integrating Azolla with Reduced Nitrogen Fertilizer Improves Weed Suppression, Productivity and Profitability of Lowland Rice Systems · 2026 · compared with the control

    Same directionCites this paper

  6. negative
    Green manure and rice straw nitrogen, alone or in combination with inorganic N, gave lower grain yield, agronomic efficiency and apparent nitrogen uptake than a standard split application of prilled urea.

    Long-term Comparison of the Agronomic Efficiency and Residual Benefits of Organic and Inorganic Nitrogen Sources for Tropical Lowland Rice · 1996 · compared with a standard split application of prilled urea

    Opposite direction

  7. negative
    Chaffy grain number and chaffy grain weight per 5 panicles increased significantly with enhancing nitrogen doses.

    Physiological response of rice (Oryza sativaL.) genotypes to elevated nitrogen applied under field conditions · 2014

    Opposite direction

  8. negative
    Excessive nitrogen yielded 2.68–6.31% less than appropriate nitrogen application.

    Excessive Nitrogen Application Leads to Lower Rice Yield and Grain Quality by Inhibiting the Grain Filling of Inferior Grains · 2022 · compared with appropriate nitrogen application (270 kg N ha−1)

    Opposite direction

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.