Intervention effectmodel-written summary

N, P, K and B produced the highest marketable head yield.

A claim from Effect of Nutrient Management on the Growth and Yield of Cabbage (Brassica oleracea var. capitata L.) in Calcareous Soils of Bangladesh · 2015

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N, P, K and B produced the highest marketable head yield.

Treatment
N, P, K and Be0
Outcome
marketable head yielde0
Direction
higheste0
Value
76.53 t/hae0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest plant spread (70.76 cm), height (37.89 cm), leaf length (37.83 cm), leaf breadth (27.13 cm), head thickness (12.85 cm), head diameter (23.02 cm), marketable head yield (76.53 t/ha) which is 191% increase over control), early head formation and maturity were recorded from the plot receiving N, P, K and B at the rate of 150, 50, 100 and 3 kg/ha, respectively”

✓ located verbatim in the source · abstract, characters 435–805
t0

“cabbage”

✓ located after whitespace/quote normalisation · title, characters 57–64

Title

Effect of Nutrient Management on the Growth and Yield of Cabbage (Brassica oleracea var. capitata L.) in Calcareous Soils of Bangladesh

M N A Naher; M N Alam; N Jahan The Agriculturists 2015. doi:10.3329/agric.v12i2.21728

Other claims from this paper (11)

Record rev-dd072cb1d8d5ea238ce8b618c9da37acc0c9a04214b1e002a9beaf220dc979c2 · schema claims-v0.9 · position 7 in the model’s answer

phosphorus · quality: postharvest · Brassica oleracea (wild cabbage)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. negative
    Fertigation with N, with total P and K pre-plant broadcast, gave the lowest marketable yield of Hermes F1 (20.9 t ha-1).

    effect of fertigation on yield and quality of four white cabbage (Brassica oleracea var. capitata L.) cultivars · 2004

    Opposite direction

  2. positive
    Phosphorus substantially increased total marketable yields.

    EFFECT OF NITROGEN, PHOSPHORUS, POTASSIUM, AND MANURE ON SIZE, RATE OF DEVELOPMENT, AND YIELD OF BRUSSELS SPROUTS · 1967

    Same direction

  3. positive
    The same nutrient combination gave significantly high head size, head weights and marketable yield.

    Integrated nutrient management studies in cabbage (Brassica oleracea) under subtropical plains of Jammu · 2022 · compared with other treatment combinations and control

    Same direction

  4. positive
    Recommended NPK combined with Azotobacter and phosphorus solubilizing bacteria gave 9% higher marketable curd yield than the recommended NPK dose alone.

    Bio-inoculants amendment substitutes synthetic fertilizers in Cauliflower (Brassica oleracea L. var. botrytis I.) and influences growth, yield, nutrient uptake and residual soil fertility · 2009 · compared with recommended dose of NPK

    Same direction

  5. positive
    Recommended NPK combined with Azotobacter and phosphorus solubilizing bacteria gave significantly higher marketable curd yield (9%) than recommended NPK alone.

    EFFECT OF BIO-INOCULANTS AND GRADED LEVEL OF FERTILIZERS ON GROWTH, YIELD AND NUTRIENT UPTAKE IN CAULIFLOWER (BRASSICA OLERACEA L. VAR. BOTRYTIS L.) · 2009 · compared with recommended dose of NPK

    Same direction

See all 6 papers →

potassium · quality: postharvest · Brassica oleracea (wild cabbage)Positive and negative results

8 papers: 5 positive, 3 negative or no effect

4 papers in the same direction as this claim · 3 in the opposite direction

  1. no effect
    Potassium had no significant effect on the proportion of cabbage placed in storage that remained marketable.

    EFFECTS OF ADDED LIMESTONE AND POTASSIUM ON YIELD AND STORAGE LOSSES OF CABBAGE · 1984

    Opposite direction

  2. no effect
    Potassium did not influence sprout maturity or firmness.

    Nitrogen and potassium fertilizer requirements of Brussels sprouts · 1971

    Opposite direction

  3. negative
    Fertigation with N, with total P and K pre-plant broadcast, gave the lowest marketable yield of Hermes F1 (20.9 t ha-1).

    effect of fertigation on yield and quality of four white cabbage (Brassica oleracea var. capitata L.) cultivars · 2004

    Opposite direction

  4. positive
    Weekly spraying with 1.5x or 2x N and K increased fall and winter marketable yield over on demand spraying.

    Impact of Insecticide Schedule, N and K Rates, and Transplant Container Size on Cabbage Yield · 1993 · compared with on-demand schedule

    Same direction

  5. positive
    Under the low irrigation regime, a low K/N ratio increased marketable yield and inflorescence weight in broccoli.

    INFLUENCE OF DIFFERENT SUBSTRATES AND NUTRIENT SOLUTIONS ON THE YIELDS AND THE INCIDENCE OF ABIOTIC DISORDERS OF BROCCOLI · 2005

    Same direction

  6. positive
    Marketable knob yield per plot was highest (7.86 kg) under 40 t cowdung/ha and 80 kg potassium per hectare.

    Effects of cowdung and potassium on growth and yield of Kohlrabi · 2012

    Same direction

  7. positive
    The highest marketable cabbage head yield, 81.58 t/ha, was obtained with combined potassium humate and reasil forte carb-nitrogen-humic.

    WATER CONSUMPTION AND YIELD OF LATE WHITE CABBAGE AGRESSOR F1 BY APPLICATION OF HUMIC FERTILIZERS ON IRRIGATED DARK CHESTNUT SOILS OF THE SARATOV TRANS-VOLGA REGION · 2025

    Same direction

See all 8 papers →

nitrogen · quality: postharvest · Brassica oleracea (wild cabbage)Positive and negative results

40 papers: 34 positive, 6 negative or no effect

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

  1. no effect
    Mineral nitrogen rate had no significant effect on broccoli marketable yield.

    Broccoli yield and its quality in spring growing cycle as dependent on nitrogen fertilization. · 2005

    Opposite direction

  2. no effect
    Marketable head yield often did not respond significantly above 112 kg·ha -1 nitrogen, especially at 30-cm spacing.

    Force to Shear the Stalk, Stalk Diameter, and Yield of Broccoli in Response to Nitrogen Fertilization and Within-row Spacing · 1991

    Opposite direction

  3. negative
    Reduced N rates lowered marketable yield of cabbage by 15% compared with the control.

    Cole crop yield response to reduced nitrogen rates · 1999 · compared with control

    Opposite direction

  4. negative
    The highest nitrogen rate, 391 kg N ha-1, produced the highest postharvest weight loss of 33.7%.

    Growth, yield, and postharvest quality of cabbage (Brassica oleracea L.) in response to different levels of nitrogen fertilizer · 2021

    Opposite direction

  5. no effect
    Nitrogen-enriched packaging did not affect kale shelf life.

    Shelf Life of Greenhouse- and Garden-grown Kale in Nitrogen-enriched and Nonenriched Packaging · 2022

    Opposite direction

  6. negative
    Nitrogen addition generally decreased marketable yields.

    EFFECT OF SOIL-APPLIED POLYMER AND NITROGEN APPLICATION ON CAULIFLOWER GROWTH · 1990

    Opposite direction

  7. positive
    Increasing the N rate from 56 to 224 kg/ha at any population linearly increased broccoli head weight and marketable yields.

    Interaction of Nitrogen Fertility and Plant Populations on Transplanted Broccoli and Cauliflower Yields · 1985

    Same direction

  8. positive
    Broccoli marketable yield increased with nitrogen application rate.

    Influence of nitrogen fertilization on yield, hollow stem incidence and sap nitrate concentration in broccoli · 2001

    Same direction

31 papers more in this group

See all 40 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.