Intervention effectmodel-written summary

Partial factor productivity, agronomic efficiency and recovery efficiency of applied nitrogen were high in rice receiving FYM + neem cake at 90 kg N ha-1.

A claim from Evaluation of various sources of organic manures on nitrogen use efficiency in rice-rice cropping system · 2013

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Partial factor productivity, agronomic efficiency and recovery efficiency of applied nitrogen were high in rice receiving FYM + neem cake at 90 kg N ha-1.

Material
ADT 36e0
Treatment
FYM + neem cake applied at 90 kg N ha-1e2
Outcome
partial factor productivity (PFPN), agronomic efficiency (AEN), recovery efficiency of applied nitrogen (REN)e1
Direction
highe2

Not reportedGeneCompoundOrgan / 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

“ADT 36 rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 175–204
e1

“partial factor productivity (PFPN), agronomic efficiency (AEN), recovery efficiency of applied nitrogen (REN)”

✓ located verbatim in the source · abstract, characters 809–918
e2

“values were high in the treatment receiving FYM + neem cake applied at 90 kg N ha-1 level”

✓ located verbatim in the source · abstract, characters 1021–1110

Title

Evaluation of various sources of organic manures on nitrogen use efficiency in rice-rice cropping system

Krishnakumar S; Muthukrishnan R; Rajendran V; et al. Scientific Research and Essays 2013. doi:10.5897/sre2013.5634

Other claims from this paper (1)

Record rev-f364c1b293e39505ddd7e58625f3fad120692f221e6f61fc6aac76bc13b4c991 · schema claims-v0.9 · position 1 in the model’s answer

fertilization · nutrient: efficiency · Oryza sativa (rice)Positive and negative results

220 papers: 202 positive, 18 negative or no effect

201 papers in the same direction as this claim · 12 in the opposite direction · 6 reporting no difference from an alternative

  1. no effect
    N use efficiency indices except PFPN did not differ significantly between fertilizer treatments.

    Effects of single basal application of coated compound fertilizer on yield and nitrogen use efficiency in double-cropped rice · 2017

    Opposite direction

  2. no effect
    Agronomic and recovery nitrogen use efficiencies and unaccounted nitrogen did not differ significantly between mineral and slurry at the same ammonium rate.

    Response of paddy rice to fertilisation with pig slurry in northeast Spain: Strategies to optimise nitrogen use efficiency · 2017 · compared with mineral

    Opposite direction

  3. negative
    Green manure and rice straw nitrogen gave lower agronomic efficiency than split 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 standard split application of prilled urea

    Opposite direction

  4. negative
    Increasing N fertilizer rates decreased apparent N recovery and N use efficiency of rice.

    Effect of nitrogen rates on rice growth and biological nitrogen fixation · 1996

    Opposite direction

  5. negative
    The farmers practice of applying half of the recommended N as basal dose recorded the least agronomic efficiency and response ratio.

    Judicious Fertilizer N Split for Higher Use Efficiency in Transplanted Rice · 2001

    Opposite direction

  6. negative
    Higher fertilizer nitrogen decreased N recovery efficiency.

    Impact of different fertilizer-N application on growth and yield formation of transplanted rice under zero tillage and conventional tillage conditions · 2004

    Opposite direction

  7. no effect
    Rice nitrogen use efficiency at 65 to 75% PCF was not different from the control.

    Effects of PAA (Polyaspartic Acid) Contained Complex Fertilizer on Rice Growth and CH4emission from Rice Cultivation · 2013 · compared with control

    Opposite direction

  8. no effect
    Phosphorus fertilization had no significant effect on nitrogen use efficiency in upland rice landraces.

    Variation in nitrogen uptake efficiency in upland rice landraces as influenced by P fertilization · 2016

    Opposite direction

211 papers more in this group

See all 220 papers →

nitrogen · nutrient: efficiency · Oryza sativa (rice)Positive and negative results

262 papers: 217 positive, 45 negative or no effect

216 papers in the same direction as this claim · 41 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
    Reducing the nitrogen rate lowered nitrogen use efficiency.

    Effect of side deep placement of nitrogen on yield and nitrogen use efficiency of single season late japonica rice · 2021

    Opposite direction

  2. negative
    One basal nitrogen split gave the lowest agronomic efficiency.

    Optimizing Nitrogen Options for Improving Nitrogen Use Efficiency of Rice under Different Water Regimes · 2019

    Opposite direction

  3. no effect
    At low N application rates, crop yields and NUE did not significantly increase with manure substitution.

    Effect of replacing synthetic nitrogen fertilizer with animal manure on grain yield and nitrogen use efficiency in China: a meta‐analysis · 2023

    Opposite direction

  4. negative
    Rice N partial factor productivity was about 20% lower in fields with inefficient N management than in fields with efficient N management.

    Rice yield gaps and nitrogen-use efficiency in the Northwestern Indo-Gangetic Plains of India: Evidence based insights from heterogeneous farmers’ practices · 2021 · compared with fields with efficient N management

    Opposite direction

  5. negative
    Agronomic nitrogen use efficiency decreased as nitrogen rate increased.

    Effects of nitrogen application rate and hill density on rice yield and nitrogen utilization in sodic saline–alkaline paddy fields · 2021

    Opposite direction

  6. negative
    Zero nitrogen gave significantly higher PNUE.

    Genotypic variation in traditional rice varieties for chlorophyll content, SPAD value and nitrogen use efficiency · 1970

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  7. negative
    High nitrogen application led to lower nitrogen use efficiency.

    Intensification of rice-based farming systems in Central Luzon, Philippines: Constraints at field, farm and regional levels · 2018

    Opposite direction

  8. negative
    160 kg N/ha reduced agronomic efficiency of N use at both sites.

    Nitrogen and Zinc Interaction Improves Yield and Quality of Submerged Basmati Rice (Oryza sativa L.) · 2014

    Opposite direction

253 papers more in this group

See all 262 papers →

botanical · nutrient: efficiency · Oryza sativa (rice)Results agree

16 papers: 16 positive, 0 negative or no effect

15 papers in the same direction as this claim

  1. positive
    LCC-guided NCU resulted in higher nitrogen use efficiency.

    Nitrate leaching, nitrous oxide emission and N use efficiency of aerobic rice under different N application strategy · 2017

    Same direction

  2. positive
    Pusa Neem Golden Urea was superior for nitrogen uptake, nitrogen use efficiency and apparent recovery.

    Coating of prilled urea with ecofriendly neem (Azadirachta indica A. Juss.) formulations for efficient nitrogen use in hybrid rice · 2003 · compared with other sources

    Same direction

  3. positive
    Neem-coated urea gave higher apparent N recovery than commercial prilled urea.

    Coating of prilled urea with neem (Azadirachta indica) for efficient nitrogen use in lowland transplanted rice (Oryza sativa) Y.S. SHIVAY, R. PRASAD, S. SlNGH , S.N. SHARMA · 2001 · compared with commercial prilled urea

    Same direction

  4. positive
    Neem cake-coated urea improved apparent N recovery relative to commercial prilled urea.

    Coating of prilled urea with neem (Azadirachta indica) for efficient nitrogen use in lowland transplanted rice (Oryza sativa) · 2001 · compared with commercial prilled urea

    Same direction

  5. positive
    Neem-cakecoated USG was superior to prilled urea for apparent nitrogen recovery.

    Relative efficiency of prilled urea, urea supergranules (USG) and USG coated with neem cake or DCD for direct-seeded rice · 1986 · compared with prilled urea

    Same direction

  6. positive
    Applying 100% RDN as neem coated urea with a 50:25:25 or 33.3:33.3:33.3 split enhanced agronomic efficiency (AE) and partial factor productivity (PFP) of applied nitrogen over existing practice.

    Growth, yield, economics, and nitrogen use efficiency of transplanted rice (Oryza sativa L.) as influenced by different nitrogen management practices through neem (Azadirachta indica) coated urea · 2024 · compared with existing practice

    Same direction

  7. positive
    Neem cake at 120 kg N/ha increased agronomic efficiency by 9.9 and 15.8% over nitrogen with and without FYM.

    Nitrogen management in transplanted rice (Oryza sativa) in mid hill acidic soils of Sikkim Himalayas · 2001 · compared with N with and without FYM

    Same direction

  8. positive
    NCU nitrogen rates up to 100 kg/ha significantly improved rice nitrogen use efficiency.

    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 direction

7 papers more in this group

See all 16 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.