Intervention effectmodel-written summary

Co-application of N and K significantly increased rice yield.

A claim from Optimizing rice yield, quality and nutrient use efficiency through combined application of nitrogen and potassium · 2024

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Co-application of N and K significantly increased rice yield.

Treatment
Co-application of N and Ke1
Outcome
rice yielde1
Direction
increasede1

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

t0

“Optimizing rice yield, quality and nutrient use efficiency through combined application of nitrogen and potassium”

✓ located verbatim in the source · title, characters 0–113
e1

“Co-application of N and K increased rice yield significantly and the highest yield (6745.02-7010.27 kg ha -1) was obtained under N2K2”

✓ located after whitespace/quote normalisation · abstract, characters 1325–1459

Title

Optimizing rice yield, quality and nutrient use efficiency through combined application of nitrogen and potassium

Guangyi Chen; Qiang Duan; Chaoyue Wu; et al. Frontiers in Plant Science 2024. doi:10.3389/fpls.2024.1335744

Other claims from this paper (15)

Record rev-11d130faeeea55692eed6736db1fe9e75cac381bbdb55fbc70da15bf51ccb9a2 · schema claims-v0.9 · position 8 in the model’s answer

cobalt atom · yield · Oryza sativa (rice)Positive and negative results

11 papers: 10 positive, 1 negative or no effect

9 papers in the same direction as this claim · 1 in the opposite direction

  1. negative
    Co-applied GR24 canceled TIS13-induced tiller bud outgrowth.

    A New Lead Chemical for Strigolactone Biosynthesis Inhibitors · 2010 · compared with TIS13-induced

    Opposite direction

  2. positive
    Cobalt ion or ABA application significantly increased grain filling rate.

    Involvement of abscisic acid and ethylene in the responses of rice grains to water stress during filling · 2004

    Same direction

  3. positive
    Combined salicylic acid and cadmium treatment produced higher rice yield than cadmium alone in pots.

    Salicylic acid mediated reduction in grain cadmium accumulation and amelioration of toxicity in Oryza sativa L. cv Bandana · 2020 · compared with only Cd exposed plants

    Same direction

  4. positive
    Cobalt enhanced yield attributes in both varieties.

    Cobalt enhanced the drought-stress tolerance of rice (Oryza sativa L.) by mitigating the oxidative damage and enhancing yield attributes · 2023

    Same direction

  5. positive
    Combined BC and MT enhanced rice growth and yield under arsenic stress.

    Biochar and Melatonin Partnership Mitigates Arsenic Toxicity in Rice by Modulating Antioxidant Defense, Phytochelatin Synthesis, and Down-Regulating the Transporters Involved in Arsenic Uptake · 2025

    Same direction

  6. positive
    Co-application of N and Mg increased rice grain yield by 53.5%.

    Magnesium and zinc fertilisation improves rice yield and yield component responses to nitrogen, phosphorus, and potassium · 2023

    Same direction

  7. positive
    CO 52 yielded 6,501 kg ha-1, 10.51 per cent more than BPT 5204.

    Evaluation of CO 52 Rice Variety for Enhanced Productivity in Cuddalore District of Tamil Nadu, India · 2024 · compared with BPT 5204

    Same direction

  8. positive
    Boron, cobalt, manganese, copper, molybdenum and zinc fertilizers increased rice productivity, depending on rate and time of application.

    Yield of rice grain and alfalfa green mass with application of microfertilizers · 2010

    Same direction

2 papers more in this group

See all 11 papers →

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

383 papers: 344 positive, 39 negative or no effect

343 papers in the same direction as this claim · 34 in the opposite direction · 5 reporting no difference from an alternative

  1. no effect
    Nitrogen and potassium application levels did not significantly affect the potassium harvest index of rice.

    Effects of Different Proportions of Nitrogen and Potassium Amounts on the Potassium Absorption and Utilization Efficiency in Direct-seeded Rice · 2014

    Opposite directionCited by this paper

  2. positive
    The 1∶0.8 basal N:K2O ratio significantly raised earbearing tiller percentage, setting percentage, and K efficiencies.

    Effects of Potassium Fertilizer Application Rates on Plant Potassium Accumulation and Grain Quality of Japonica Rice · 2004

    Same directionCited by this paper

  3. positive
    The 75 kg N and 100 kg K combination produced significantly higher biomass at maximum tillering and heading.

    Optimizing Rice Yield and Nutrient Uptake: Investigating the Interaction Between Nitrogen and Potassium in Wet Season Rice Cultivation · 2024

    Same directionCites this paper

  4. positive
    NPK increased straw dry mass by 2 152 kg/hm2 versus CK.

    Effects of Combined Application of N,P,K on Nutrient Uptake and Distribution of Rice · 2010 · compared with CK(without fertilizer)

    Same directionCited by this paper

  5. positive
    Split potassium increased grain yield by 3.06% versus basal-only application.

    Effects of N-K management strategies on nutrient uptake efficiency, lodging resistance, and yield in machine-transplanted rice · 2025 · compared with basal-only application (K1)

    Same directionCites this paper

  6. positive
    Under moderate nitrogen supply, more basal potassium application improved dry matter accumulation in both cultivars.

    Effects of Potassium Management on Yield Formation and Nutrient Utilization in Japonica Rice Cultivars with Contrasting Nitrogen Efficiency Under a Simplified Nitrogen Regime · 2026

    Same directionCites this paper

  7. no effect
    Following green manure, reduced P, K, S and Zn doses did not reduce T. Aman yield.

    Long‐Term Integrated Nutrient Management for Rice‐Based Cropping Pattern: Effect on Growth, Yield, Nutrient Uptake, Nutrient Balance Sheet, and Soil Fertility · 2007

    Opposite direction

  8. negative
    Low K (3 mg/kg) decreased allelochemical production in rice.

    Nutritional Stresses and Varietal Resistance in Rice: Effects on Whitebacked Planthopper · 1991

    Opposite direction

374 papers more in this group

See all 383 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
    Nitrogen management alleviated heat-induced yield losses.

    Rice Yield and Nitrogen Use Efficiency Under Climate Change: Unraveling Key Drivers with Least Absolute Shrinkage and Selection Operator Regression · 2025

    Same directionCites this paper

  2. positive
    Chemical fertilizer plus vermicompost improved mean rice grain yield by 28.5% versus chemical fertilizer alone.

    Combined application of chemical fertilizers, organics and foliar spray of zinc and iron on yield, quality and water productivity of aerobically grown rice (Oryza sativa) in calcareous soil · 2022 · compared with alone 100% RDN through chemical fertilizer

    Same directionCited by this paper

  3. positive
    The 75 kg N and 100 kg K combination produced significantly higher biomass at maximum tillering and heading.

    Optimizing Rice Yield and Nutrient Uptake: Investigating the Interaction Between Nitrogen and Potassium in Wet Season Rice Cultivation · 2024

    Same directionCites this paper

  4. positive
    NPK increased straw dry mass by 2 152 kg/hm2 versus CK.

    Effects of Combined Application of N,P,K on Nutrient Uptake and Distribution of Rice · 2010 · compared with CK(without fertilizer)

    Same directionCited by this paper

  5. 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

  6. 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

  7. 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

  8. negative
    SCU reduced rice yield, though not significantly.

    Effects of different types of slow- and controlled-release fertilizers on rice yield · 2021

    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.