Intervention effectmodel-written summary

Broccoli yield reached 30.07 Mg ha−1, 143.87% above control.

A claim from Effect of humic acid, calcium and poultry waste on growth and yield of broccoli · 2024

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Broccoli yield reached 30.07 Mg ha−1, 143.87% above control.

Treatment
humic acid, incorporating poultry manure, plant calcium sprayinge0
Outcome
plant yielde1
Direction
remarkablee1
Value
30.07 Mg ha −1e1
Qualifier
143.87%e1
Comparator
controle1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSetting

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

Brassica oleracea var. italica
Brassica oleracea var. italica · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“humic acid, incorporating poultry manure, plant calcium spraying, their interactions”

✓ located verbatim in the source · abstract, characters 620–704
e1

“plant yield reached 30.07 Mg ha −1 , representing a remarkable of 143.87% compared to control”

✓ located verbatim in the source · abstract, characters 1048–1141
e2

“growth and yield of broccoli”

✓ located verbatim in the source · abstract, characters 126–154

Title

Effect of humic acid, calcium and poultry waste on growth and yield of broccoli

S S Juma; F W Ahmed; A H Alsalman IOP Conference Series Earth and Environmental Science 2024. doi:10.1088/1755-1315/1302/1/012119

Other claims from this paper (4)

Record rev-07e52bcf8e9f4ebe4c07637df3c3aed3ff7b71241c43021cd8d232515815cee2 · schema claims-v0.9 · position 5 in the model’s answer

calcium atom · yield · Brassica oleracea (wild cabbage)Positive and negative results

10 papers: 8 positive, 2 negative or no effect

7 papers in the same direction as this claim · 2 in the opposite direction

  1. no effect
    Sulphur or calcium fertilizer source made no apparent yield difference.

    The response of late storage cabbage and broccoli to applications of sulphur and calcium · 2003

    Opposite direction

  2. negative
    Calcium nitrate did not mitigate the salt effect on kale leaf fresh matter yield.

    Leaf gas exchanges and production of kale under Ca(NO3)2 concentrations in salinized nutrient solution · 2022

    Opposite direction

  3. positive
    Higher calcium increased cabbage and lettuce root yield.

    Effect of aluminium on growth and nutrient uptake of cabbage, lettuce and kikuyu grass in nutrient solution · 1980 · compared with control

    Same direction

  4. positive
    Cabbage-head yield increased with higher Ca, Mg or S concentration in the culture solution.

    The role of macronutrients in cabbage-head formation · 1981

    Same direction

  5. positive
    Low calcium nutrition reduced yield only in the Sartori strain of Brussels sprouts.

    Calcium nutrition in relation to the occurrence of internal browning in Brussels sprouts · 1966

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

  6. positive
    An extra 50% Ca(NO3)2 addition in saline solution reduced the effect of NaCl addition on kale production.

    Mineral nutrition and hydroponic kale production under saline stress and calcium nitrate · 2023 · compared with saline nutrient solution

    Same direction

  7. positive
    Medium and high calcium rates increased cabbage yield on sand in the first year.

    543 Effect of Calcium and Sulfur on Yield of Late-storage Cabbage · 2000

    Same direction

  8. positive
    Calcium fertilizer gave the highest cauliflower growth and yield relative to control.

    Impact of Foliar Spray with Some Nutrients as Nano-Particles on Growth, Yield, Enzymatical and Anatomical Changes of Cauliflower · 2024 · compared with control

    Same direction

1 paper more in this group

See all 10 papers →

other · yield · Brassica oleracea (wild cabbage)Results differ

37 papers: 33 positive, 4 negative or no effect

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

  1. no effect
    The lower seaweed application rate did not increase broccoli yield.

    Effect on yield, total phenolic, total flavonoid and total isothiocyanate content of two broccoli cultivars (Brassica oleraceae var italica) following the application of a commercial brown seaweed extract (Ascophyllum nodosum) · 2014

    Opposite direction

  2. no effect
    Seaweed extracts did not significantly increase cabbage yield.

    Enhancement of phenolic and flavonoid compounds in cabbage (Brassica oleraceae) following application of commercial seaweed extracts of the brown seaweed, (Ascophyllum nodosum) · 2013

    Opposite direction

  3. no effect
    Fine particle amendments had little effect on field cauliflower yield.

    Effects of textural amendment of coarse soils on crop growth and water use · 1980 · compared with unamended soil

    Opposite direction

  4. negative
    Humic acid gave lower cabbage yield (57.53 Mg ha-1) than compound fertilizer in the second stage (106 days).

    The effect of adding compound fertilizer of NPK and Humic acid on the availability of NPK soil and cabbage yield · 2022 · compared with compound fertilizer

    Opposite direction

  5. positive
    The combined full-dose treatment significantly increased head yield to 54.38 tonnes/ha over the half-dose treatment with Pseudomonas.

    Integrated effect of bio-organics with chemical fertilizer on growth, yield and quality of cabbage (Brassica oleracea var capitata) · 2014 · compared with 50% recommended dose of fertilizer with Pseudomonas fluorescens applied

    Same direction

  6. positive
    Brussels sprouts dry matter yield increased significantly with annual farm compost in year four.

    Farm Compost Application: Effects on Crop Performance · 2012

    Same direction

  7. positive
    Pseudomonas fluorescens alone or with humic acid gave considerable improvement in cabbage productivity and nutrient status.

    Enhancing Production Potential of Cabbage and Improves Soil Fertility Status of Indo-Gangetic Plain through Application of Bio-organics and Mineral Fertilizer · 2017

    Same direction

  8. positive
    Combined biostimulants at 2 ml.L-1 gave the highest main head weight of broccoli (674.46 g).

    Effect of Plant Biostimulants on Growth, Yield and Some Mineral Composition of Broccoli Plants (Brassica oleracea var. Italica) · 2023

    Same direction

28 papers more in this group

See all 37 papers →

application · yield · Brassica oleracea (wild cabbage)Positive and negative results

110 papers: 104 positive, 6 negative or no effect

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

  1. positive
    The ozone enrichment and the foliar application of 2% Moringa leaf extract (O3T3) increased broccoli yield to 919.33 versus O2T0.

    EFFECT OF OZONE ENRICHMENT AND SPRAYING WITH ORGANIC NUTRIENT ON NUTRIENT AND WATER USE EFFICIENCY AND FERTILIZER PRODUCTIVITY OF BROCCOLI PLANT CULTIVATED HYDROPONICALLY WITH MODIFIED NFT TECHNOLOGY. · 2022 · compared with O2T0

    Same directionCited by this paper

  2. no effect
    Foliar application of all boron treatments had no significant effect on plant height, number of leaves per plant and average plant spread of broccoli.

    Influence of foliar fertilization of boron on broccoli (Brassica oleracea var. italica) in boron deficient soil of Doon Valley, India · 2017

    Opposite direction

  3. no effect
    Foliar sprays of seaweed, fish and fertilizer products did not affect plant nutrient levels or yields in sweet peppers, broccoli or lettuce.

    The Use of Marine Derived Products and Soybean Meal as Fertilizers in Organic Vegetable Production · 2004 · compared with water control

    Opposite direction

  4. negative
    Combining root and transplant dipping caused benomyl phytotoxicity and reduced yield.

    Clubroot control in cabbage and cauliflower using mechanised transplanting drenches · 1982

    Opposite direction

  5. no effect
    SADH treated plants yielded equally to untreated plants.

    Brussels Sprouts Growth and Yields as Influenced by Succinic Acid-2,2-dimethylhydrazide1 · 1972 · compared with untreated plants

    Opposite direction

  6. negative
    Open conditions with water spray gave the lowest growth and yield.

    Effect of different coloured shade net and organic foliar sprays on growth and yield of cauliflower (Brassica oleracea var. botrytis) under low tunnel structure · 2023

    Opposite direction

  7. no effect
    Micronutrient foliar spray had a non-significant effect on the number of leaves per plant and on the days to curd initiation and maturity.

    Effect of foliar spray of micronutrients on growth, yield and quality of cauliflower (Brassica oleracea var. botrytis L.) under protected structure · 2024 · compared with T1 (control)

    Opposite direction

  8. positive
    The combined foliar spray yielded the maximum gross return of BDT 420300 ha −1.

    Influence of foliar spray and post-harvest treatments on head yield, shelf-life, and physicochemical qualities of broccoli · 2023

    Same direction

101 papers more in this group

See all 110 papers →

3 of 4 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.