Intervention effectmodel-written summary

Sunflower stem girth was maximum at 6.66 cm with 150-50 NP kg ha-1.

A claim from INTEGRATED MANAGEMENT OF NP FERTILIZERS CAN BOOST THE GROWTH AND YIELD PERFORMANCE OF SUNFLOWER (HELIANTHUS ANNUS L.) · 2021

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sunflower stem girth was maximum at 6.66 cm with 150-50 NP kg ha-1.

Taxon
sunflowerHelianthus annuuse1
Material
HO-1e1
Treatment
150-50 NP fertilizer kg ha-1e0
Outcome
stem girthe0
Direction
maximume0
Value
6.66 (cm)e0

Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“maximum 184.25 (cm) plant height, 6.66 (cm) stem girth, 28.19 (cm) head diameter, 1161.92 seeds head-1, 90.33 (g) seed index and 2172.00 (kg ha-1) seed yield was achieved by applying 150-50 NP fertilizer kg ha-1”

✓ located verbatim in the source · abstract, characters 790–1001
e1

“sunflower variety HO-1”

✓ located verbatim in the source · abstract, characters 428–450

Title

INTEGRATED MANAGEMENT OF NP FERTILIZERS CAN BOOST THE GROWTH AND YIELD PERFORMANCE OF SUNFLOWER (HELIANTHUS ANNUS L.)

Ayaz Khan Leghar; Umed Ali Laghari; Abdul Qayoom Majidano; et al. PLANT ARCHIVES 2021. doi:10.51470/plantarchives.2021.v21.no2.013

Other claims from this paper (10)

Record rev-7bb58e43c4b8becac279040d91768480ef0d54a2e762535f3e17f73e812e529f · schema claims-v0.9 · position 3 in the model’s answer

nitrogen · growth · Helianthus annuus (common sunflower)Results differ

76 papers: 63 positive, 13 negative or no effect

62 papers in the same direction as this claim · 12 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Greater nitrogen did not affect canopy extinction coefficient (0.88) in sunflower.

    Effect of Specific Leaf Nitrogen on Radiation Use Efficiency and Growth of Sunflower · 1997

    Opposite direction

  2. negative
    Sunflower growth was considerably reduced at zero nitrate.

    ABSORPTION OF NITROGEN DIOXIDE BY SUNFLOWER PLANTS GROWN AT VARIOUS LEVELS OF NITRATE · 1986 · compared with 5 mM nitrate

    Opposite direction

  3. negative
    Shoot growth was critically damaged when soil containers were placed in nitrogen at early stages of growth before roots were well established.

    Effect of Duration and Timing of Low Soil Oxygen Content on Shoot and Root Growth · 1962

    Opposite direction

  4. negative
    Nitrogen addition damaged sunflower seedling growth, especially under high salinity

    Effects of Sodium Chloride and Mineral Nutrients on Initial Stages of Development of Sunflower Life · 2007

    Opposite direction

  5. no effect
    Nitrogen above 25 ppm did not increase stem diameter.

    Effect of Fertilizer‐N and Herbicides on the Growth and N Content of Sunflower1 · 1976

    Opposite direction

  6. negative
    High ammonium rates reduced sunflower root volume.

    Soluble fractions and kinetics parameters of nitrate and ammonium uptake in sunflower ("Neon" Hybrid) · 2015

    Opposite direction

  7. no effect
    Direct immersion in liquid nitrogen left germination of air-dried H. annuus seeds without a significant difference from non-cooled controls.

    Cryopreservation of lipid-rich seeds: effect of moisture content and cooling rate on germination. · 2002 · compared with control seeds (air-dried, non-cooled)

    Opposite direction

  8. negative
    Lower nitrogen significantly reduced sunflower leaf area.

    Interactive Effect of Nitrogen and Water Stress on Leaf Area of Sunflower (Helianthus annuus L.) · 2000

    Opposite direction

67 papers more in this group

See all 76 papers →

phosphorus · growth · Helianthus annuus (common sunflower)Positive and negative results

38 papers: 32 positive, 6 negative or no effect

31 papers in the same direction as this claim · 6 in the opposite direction

  1. positive
    Irrigation at 0.8 IW:CPE ratio with N at 120 kg ha-1 and P2O5 at 80 kg ha-1 gave maximum leaf area index at 90 days after sowing.

    Effect of irrigation, N, and P on yield and yield attributes of spring sunflower (Helianthus annuus L.) · 2016

    Same directionCited by this paper

  2. negative
    Low medium phosphate inhibited plant growth rate.

    Photosynthesis and chlorophyll fluorescence in sunflower (Helianthus annuus L.) leaves as affected by phosphorus nutrition · 1994

    Opposite direction

  3. negative
    Omitting phosphorus severely impaired sunflower vegetative growth and development.

    Effect of nutrient omission in the development of sunflower BRS-122 in greenhouse conditions · 2019

    Opposite direction

  4. negative
    Low P reduced sunflower total dry weight to 82% after 42 days.

    Understanding leaf area expansion in sunflower and wheat grown under low-phosphorus conditions · 1998

    Opposite direction

  5. no effect
    Grain size did not change with N and P.

    Root System, Phenology and Yield of Sunflower in Relation to Nitrogen and Phosphorus · 2015

    Opposite direction

  6. no effect
    PSB or phosphorus levels applied alone did not markedly influence sunflower growth parameters.

    EFFECTS OF PHOSPHORUS LEVELS, PHOSPHATE SOLUBILIZING BACTERIA APPLICATIONS AT VARYING DOSES AND TECHNIQUES ON PLANT STAND, OIL CONTENT AND YIELD OF SUNFLOWER (HELIANTHUS ANNUS L.) · 2024

    Opposite direction

  7. no effect
    Superphosphate phosphorus had no significant effect on studied growth parameters.

    EFFECT OF CADMIUM ON GROWTH OF SUNFLOWER PLANT GROWN IN CALCAREOUS SOIL · 1994

    Opposite direction

  8. positive
    Phosphate deficiency decreased leaf ATP, ADP, and adenylate energy charge.

    In vivo photosynthetic electron transport does not limit photosynthetic capacity in phosphate‐deficient sunflower and maize leaves · 1993

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

29 papers more in this group

See all 38 papers →

fertilization · growth · Helianthus annuus (common sunflower)Positive and negative results

146 papers: 134 positive, 12 negative or no effect

133 papers in the same direction as this claim · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    The highest rate of foliar B fertilization had no other evident detrimental effect on sunflower plant growth.

    Effects of Boron Foliar Applications on Vegetative and Reproductive Growth of Sunflower · 2003

    Opposite direction

  2. no effect
    Yield, LAI, total N uptake and N use efficiency did not differ statistically between the two fertilized treatments.

    Quality and Nitrogen Use Efficiency of Sunflower Grown at Different Nitrogen Levels Under Mediterranean Conditions · 2005

    Opposite direction

  3. no effect
    Molybdenum fertilization did not increase Romania HS-52 growth.

    Responses of Sunflower Genotypes to Aluminum in Acid Soil and Nutrient Solution1 · 1974

    Opposite direction

  4. negative
    Decreasing organic fertilizer application adversely affected sunflower growth characters, with significant differences at the 5% level.

    Evaluate the Response of Sunflower Productivity to Modern Chemigation systems in New Reclaimed Lands · 2015

    Opposite direction

  5. negative
    Reducing fertilizer to 75% or 50% significantly reduced sunflower Plant height.

    Influence of conjuctive use of organic and inorganic source of nutrients in rice (Oryza sativa) on crop growth, yield components, yield and soil fertility in rice- sunflower (Helianthus annuus) sequence · 2001 · compared with recommended level of 80, 50 and 30 kglha NPK

    Opposite direction

  6. no effect
    Nitrogen and phosphorus fertilizers compensated little, if at all, for small soil volumes that reduced sunflower growth.

    SOIL VOLUME AND FERTILIZER EFFECTS ON GROWTH AND NUTRIENT CONTENTS OF SUNFLOWER PLANTS · 1970

    Opposite direction

  7. negative
    Combined furfural plus NPK significantly decreased sunflower shoot weight.

    Comparative study on the integrated application of environmental friendly compounds and a chemical- nematicide in controlling root knot nematode Meloidogyne incognita infecting sunflower plants; a field study · 2017

    Opposite direction

  8. negative
    Humic acids in nutrient solution reduced root section growth rate relative to either component alone.

    Efecto de los ácidos húmicos sobre el crecimiento de las raíces y los niveles endógenos de auxina y sustancias similares a inhibidores · 1990 · compared with humic acids or nutrient solution alone

    Opposite direction

137 papers more in this group

See all 146 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.