Intervention effectmodel-written summary

Compost tea plus seaweed spray gave the richest leaves in N, Zn and Mn.

A claim from Impacts of Effective Microorganisms, Compost Tea, Fulvic Acid, Yeast Extract, and Foliar Spray with Seaweed Extract on Sweet Pepper Plants under Greenhouse Conditions · 2021

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Compost tea plus seaweed spray gave the richest leaves in N, Zn and Mn.

Taxon
Sweet pepper plantsCapsicum annuume0
Treatment
compost tea and seaweed extract foliar spray at 3 g/Le0
Outcome
leavesrichest in N, Zn, and Mne0
Direction
richeste0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Sweet pepper plants supplemented with compost tea and seaweed extract foliar spray at 3 g/L were the most promising for inducing the highest values of fruit fresh and dry weights, fruit length and diameter, and the leavesrichest in N, Zn, and Mn”

✓ located verbatim in the source · abstract, characters 1335–1580

Title

Impacts of Effective Microorganisms, Compost Tea, Fulvic Acid, Yeast Extract, and Foliar Spray with Seaweed Extract on Sweet Pepper Plants under Greenhouse Conditions

Mostafa H. M. Mohamed; Rokayya Sami; Amina A. M. Al-Mushhin; et al. Plants 2021. doi:10.3390/plants10091927

Other claims from this paper (9)

Record rev-783cd8f2a8cdba0ee17e4026677599d4b8357305019e02d5e9a4cb8983bef4d7 · schema claims-v0.9 · position 9 in the model’s answer

other · nutrient: content · Capsicum annuum (sweet pepper)Positive and negative results

11 papers: 9 positive, 2 negative or no effect

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

  1. positive
    SWE and IAA at 2000 and 120 mg/l respectively produced the highest fruit N, P and K contents among tested combinations.

    Seaweed Extract and Indoleacetic Acid Foliar Application in Relation to The Growth Performance of Sweet Pepper Grown Under Net House Conditions · 2019 · compared with other tested combinations

    Same directionCited by this paper

  2. no effect
    Increasing the compost rate from 40 to 80 Mg/ha did not increase soil or plant N levels.

    Compost for Nitrogen Fertility Management of Bell Pepper in a Drip-irrigated Plasticulture System · 2005 · compared with from 40

    Opposite direction

  3. no effect
    Excreta-derived amendments did not significantly affect groundwater contamination by E. coli and nitrate during the trial

    Closing the loop: crop yield response and soil health implications of human excreta-derived fertilizer application in dryland agriculture · 2025

    Opposite direction

  4. positive
    Uptake of K+, Ca2+ and Mg2+ by red pepper was higher with each clay mineral treatment than in the control.

    Effects of the Applications of Clay Minerals on the Early Growth of Red Pepper in Growing Medium · 2012 · compared with control

    Same direction

  5. positive
    On rice straw under I3 irrigation, seaweed extract significantly increased N, P, and Ca concentrations.

    EFFECT OF RICE STRAW AND APPLICATIONS OF POTASSIUM SILICATE, POTASSIUM HUMATE AND SEAWEED EXTRACT ON GROWTH AND SOME MACRONUTRIENTS OF SWEET PEPPER PLANTS UNDER IRRIGATION DEFICIT · 2018

    Same direction

  6. positive
    Leaf K and Ca contents were highest in the medium with 25% LRR (SPCL) + 15 g/l HA.

    Effects of organic amendment with licorice ( Glycyrrhiza glabra ) root residue and humic acid on the vegetative growth, fruit yield, and mineral absorption of bell pepper ( Capsicum annum) · 2024

    Same direction

  7. positive
    Seaweed extract at 4 milliliters/liter gave the highest N, P and K percentages.

    Influence of Seaweed Extract, Fulvic Acid and Poly Amino Acid on the Growth and Productivity of Capsicum annuum L. ″Super Nar″ Cultivar · 2025 · compared with other treatments

    Same direction

  8. positive
    The treatment increased bell pepper calcium relative to control.

    Combined use of humic acids and Trichoderma harzianum as sustainable alternatives to alliviate salt stress in bell pepper · 2025 · compared with control

    Same direction

2 papers more in this group

See all 11 papers →

fertilization · nutrient: content · Capsicum annuum (sweet pepper)Positive and negative results

36 papers: 32 positive, 4 negative or no effect

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

  1. negative
    Increasing salinity of the nutrient solution reduced potassium, phosphorus and sulfur contents in sweet pepper leaf tissues.

    FRUIT YIELD AND NUTRITIONAL CHARACTERISTICS OF SWEET PEPPER GROWN UNDER SALT STRESS IN HYDROPONIC SYSTEM · 2018

    Opposite direction

  2. no effect
    Foliar nutrient levels were largely unaffected by the fertilizer program.

    Fertilizer Program Impacts Yield and Blossom End Rot in Bell Pepper · 2019

    Opposite direction

  3. negative
    P and Zn fertilizers affected micronutrient content in the soil of sweet pepper pots and interacted antagonistically.

    Study on synergistic and antagonistic interactions of P and Zn fertilization on sweet pepper · 2024

    Opposite direction

  4. no effect
    Soil N mineralization and ammonium and nitrate concentrations did not differ significantly among fertilizer treatments

    Closing the loop: crop yield response and soil health implications of human excreta-derived fertilizer application in dryland agriculture · 2025

    Opposite direction

  5. positive
    Increasing compost reduced boron concentration in soil solution.

    Effect of Composted Organic Matter on Boron Uptake by Plants · 2001

    Same direction

  6. positive
    Pepper leaf N rose with fertilizer rate.

    Composts from Various Municipal Solid Waste Feedstocks Affect Vegetable Crops. II. Growth, Yields, and Fruit Quality · 1997

    Same direction

  7. positive
    Cow manure and vermicompost improved surface-soil organic carbon and available N and P after three years.

    Integrated Nutrient Management for Production, Economics, and Soil Improvement in Winter Vegetables · 2008

    Same direction

  8. positive
    The N2 fertilization rate had an optimal effect on uptake, translocation and assimilation of nitrate in pepper leaves.

    Metabolism and efficiency in nitrogen utilization during senescence in pepper plants: Response to nitrogenous fertilization · 2000

    Same direction

27 papers more in this group

See all 36 papers →

application · nutrient: content · Capsicum annuum (sweet pepper)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this claim

  1. positive
    Foliar urea in root N-limited sweet pepper plants increased total N concentration in the fruits.

    Influence of foliar urea on the antioxidant response and fruit color of sweet pepper under limited N supply · 2008

    Same direction

  2. positive
    Foliar potassium silicate combined with 2600 or 1800 m3 fed-1 irrigation increased NPK uptake by sweet pepper foliage.

    INFLUENCE OF IRRIGATION LEVELS, ANTITRANSPIRANTS AND POTASSIUM SILICATE ON GROWTH, FRUIT YIELD AND QUALITY OF SWEET PEPPER PLANTS (Capsicum annuum L.) GROWN UNDER DRIP IRRIGATION · 2013

    Same direction

  3. positive
    Drench treatments significantly increased leaf N, P, and Ca concentrations versus untreated controls.

    EFFECT OF RICE STRAW AND APPLICATIONS OF POTASSIUM SILICATE, POTASSIUM HUMATE AND SEAWEED EXTRACT ON GROWTH AND SOME MACRONUTRIENTS OF SWEET PEPPER PLANTS UNDER IRRIGATION DEFICIT · 2018 · compared with untreated control

    Same direction

  4. positive
    Leaf total nitrogen of red-pepper at 150 days after transplanting was highest (4.4%) under foliar application of the selected liquid manure.

    Selection of Useful Organic Materials as an Additional Fertilizer for Organic Red-pepper Production and the Application Effect · 2008

    Same direction

  5. positive
    Ergostim at 3 ml L-1 increased phosphorus to 2.32%.

    Effect of the ergostim and amino acids on vegetative growth characteristics and mineral content of hot pepper (Capsicum annuum L.) · 2023

    Same direction

  6. positive
    Spraying with chitosan at 2 ml/l, with mineral and organic nitrogen fertilization, increased N, P and K contents and their uptake by shoot.

    Effect of Mineral and Organic Nitrogen and some Natural Substances on Productivity and Fruit Quality of Sweet Pepper · 2020

    Same direction

  7. positive
    The CTS-Cu nanocomposite at 200 mg L –1 kept Cd uptake through the root reduced by 36% relative to Cd stress.

    Chitosan-Copper Nanocomposites Exterminate Cd Toxicity in Capsicum annuum L. through Improving Photosynthetic Attributes, Antioxidant Defense, and Reduced Cd Uptake · 2025 · compared with Cd stress

    Same direction

  8. positive
    Foliar boron at 100 ppm with 75% mineral and 25% organic nitrogen gave the highest N, P and K contents in leaves.

    EFFECT OF BORON FOLIAR APPLICATION AND DIFFERENT COMBINATIONS OF MINERAL AND ORGANIC NITROGEN FERTILIZATION ON GROWTH, CHEMICAL COMPOSITION AND YIELD OF SWEET PEPPER (Capsicum annuum L.). · 2009

    Same direction

2 papers more in this group

See all 11 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.