JINGFENG HUMIC ACID  > 12% Seaweed Extract Fertilizer

12% Seaweed Extract Fertilizer Overview

The raw materials of 12% seaweed extract are kelp and brown alga. After processed by Physical crushing, biochemical extraction, absorption concentration, film drying, etc, the seaweed is finally made to flake or powder.

The seaweed extract has special quality, quick dissolution rate, high activity and good absorptivity. It has many functions including growth promoting, production increase, disease prevention, insect expelling, etc. Seaweed extract can be used for root irrigation, water flushing irrigation, foliar spray, etc. It can also be used as raw materials for biological fertilizer, compound fertilizer, organic fertilizer, etc. 

More kinds of seaweed extract: 14%-16%18%, 20%.

Seaweed Extract Micro Granule

Seaweed Extract Flakes

12% Seaweed Extract Technical Details

AppearanceBlack flakes/Micro granule
Product codeJFHA-SE-4-F/P
Alginic acid 1≥12% w/w
Algal oligosaccharides≥25% w/w
Mannitol≥3% w/w
pH9-11
K2O≥10% w/w
Amino acid≥2% w/w

* 1 is the test methods, NY/T 2266 – 2012 Analysis method

Recommended Applications for 12% Seaweed Extract Fertilizer

Application Scope

Agricultural Crops

Field crops such as wheat, corn, rice, cotton, and oilseeds, soybeans, sugar beet, barley, and so on.

Vegetables

Open-field and greenhouse vegetables including tomatoes, cucumbers, peppers, lettuce, and broccoli.

Fruit Trees

Pome fruits (apple, pear), stone fruits (peach, cherry), citrus, grapes, and berries, Tropical & Subtropical Fruits.

* Other Scenarios: Hydroponics, substrate cultivation, lawn & landscape greening, seed treatment, nursery production, and flower farming.

Recommended Dosage & Application Methods

Dosages may vary slightly based on soil properties, crop varieties, and local climate conditions. Adjustments are recommended according to actual field conditions.

Application Area

Recommended Dosage

Application Methods

Agricultural – Soil Application

1 – 2 liters/acre (general soil), 2 – 3 liters/acre (poor soil), diluted 1:200 – 1:300 with water

Apply with watering can or sprayer on soil surface before sowing/transplanting; incorporate during tillage

Agricultural – Foliar Spray

0.5 – 1 liter of solution (diluted 1:300 – 1:500) per 1000 sq ft of foliage area

Use fine – mist sprayer on both leaf surfaces in early morning or late afternoon, repeat every 7 – 14 days

Horticultural – Potted Plants (Small – Medium)

5 – 10 ml in 1 – 2 liters of water

Water plants with diluted solution once every 2 – 3 weeks at plant base

Horticultural – Potted Plants (Large)

10 – 15 ml in 2 – 3 liters of water

Water plants with diluted solution once every 2 – 3 weeks at plant base

Horticultural – Greenhouse Cultivation

1.5 – 2.5 liters per 100 sq m, diluted 1:250 – 1:400 with water

Use automated irrigation or handheld sprayer; apply to soil in soil – based systems, add to nutrient solution in hydroponics

Packaging & Storage

We offer a range of standard packaging solutions: 1kg, 5kg, 10kg, 20kg, 25kg bags,and 1ton jumbo bags.Custom packaging services are also available. Our team will provide tailored recommendations based on your specific requirements to ensure proper storage and transportation, maintaining product integrity throughout the process.

1kg bag

10kg 20kg 25kg bag

Jumbo ton bag

Certifications & Compliance

Safety Data Sheet / Technical Data Sheet

Successful Cases

Farm Background

  • Case Name: Case of 12% Seaweed Extract Fertilizer Improving Tomato Yield and Quality at Sunshine Farm
  • Time: Planting season in 2022
  • Person in Charge: [Name: Li Ming]
  • Position: Agronomy Supervisor of Sunshine Farm
  • [Sunshine Farm] is a commercial tomato – growing farm covering 50 acres in [Beijing]. The soil in this area was initially of medium fertility, with challenges in maintaining consistent moisture and nutrient availability for optimal tomato growth.

Application of 12% Seaweed Extract Fertilizer

  • Soil Application: At the beginning of the planting season, the farm applied the 12% seaweed extract fertilizer at a rate of 1.5 liters per acre. The fertilizer was diluted with water at a ratio of 1:250. This diluted solution was evenly distributed across the soil surface using a tractor – mounted sprayer before transplanting the tomato seedlings.
  • Foliar Spray: During the vegetative and flowering stages, a foliar spray was carried out. The 12% seaweed extract fertilizer was diluted at a ratio of 1:400 with water. Approximately 0.8 liters of the diluted solution was applied per 1000 square feet of tomato foliage area every 10 days.

Results

  • Yield Increase: Compared to the previous season when a traditional fertilizer was used, the tomato yield increased by 25%. The average yield per acre rose from 30 tons to 37.5 tons. The increase was attributed to enhanced root development, which allowed the plants to access more nutrients and water from the soil. The seaweed extract also improved the plants’ resistance to stress, enabling them to better withstand temperature fluctuations and occasional drought conditions.
  • Quality Enhancement: The tomatoes had a more intense color, better firmness, and a sweeter taste. The market price of the tomatoes increased by 15% due to their improved quality. The seaweed extract – treated tomatoes also had a longer shelf – life, reducing post – harvest losses.

Nursery Background

  • Case Name: Case of 12% Seaweed Extract Fertilizer Promoting Rose Growth and Flowering at Starlight Horticultural Nursery
  • Time: The whole year of 2023
  • Person in Charge: [Name: Wang Li]
  • Position: Technical Director of Starlight Horticultural Nursery
  • [Starlight] specializes in cultivating roses for cut – flower production. The nursery has a controlled – environment greenhouse covering 10,000 square feet. Maintaining the health and beauty of the roses, especially in terms of flower size, color, and stem strength, is crucial for their market competitiveness.

Application of 12% Seaweed Extract Fertilizer

  • Potted Plant Application: For potted roses, 8 ml of the 12% seaweed extract fertilizer was mixed with 1.5 liters of water for small – to – medium – sized pots (8 – 12 inches in diameter). This solution was used to water the roses once every two weeks.
  • Greenhouse – wide Application: In the greenhouse, 2 liters of the 12% seaweed extract fertilizer per 100 square meters were diluted with water at a ratio of 1:300. This diluted solution was applied through an automated irrigation system once a month.

Results

  • Growth Promotion: The roses treated with the seaweed extract fertilizer showed more vigorous growth. The stems were 20% longer and 15% thicker on average compared to those not treated with the seaweed – based fertilizer. The plants also had more abundant foliage, creating a fuller and more attractive appearance.
  • Flowering Improvement: The number of flowers per plant increased by 30%. The flowers were larger, with a diameter increase of about 15%. The color of the roses was more vivid, and the fragrance was more intense. These improvements led to a 20% increase in the nursery’s revenue as the higher – quality roses commanded a better price in the cut – flower market.

Field Background

  • Case Name: Case of 12% Seaweed Extract Fertilizer Enhancing Wheat Stress Resistance and Yield on Bountiful Plain
  • Time: Planting cycle from 2021 – 2022
  • Person in Charge: [Name: Zhang Feng]
  • Position: Technical Advisor of Fengyuan Agricultural Cooperative
  • A large – scale wheat – growing field in [Fengyuan] covers 500 acres. The area is prone to occasional pest attacks and waterlogging during the rainy season, which often affects wheat growth and yield.

Application of 12% Seaweed Extract Fertilizer

  • Soil Drench: Prior to sowing, 2 liters of the 12% seaweed extract fertilizer per acre were diluted with water at a ratio of 1:200. This solution was used to drench the soil, ensuring that the nutrients penetrated deep into the root zone.
  • Foliar Application during Growth Stages: During the tillering and heading stages, a foliar spray of the 12% seaweed extract fertilizer, diluted at a ratio of 1:350 with water, was applied. Approximately 1 liter of the diluted solution was used per 1000 square feet of wheat field area.

Results

  • Resilience Against Stress: The wheat crops treated with the seaweed extract fertilizer showed increased resistance to pests. The incidence of aphid infestation was reduced by 40% compared to the control fields. Additionally, the plants were more resilient to waterlogging, with a faster recovery rate after the water receded.
  • Yield Boost: The overall wheat yield increased by 22%. The improved root structure and enhanced nutrient uptake due to the seaweed extract contributed to better – filled grains and higher biomass production. The farmer’s profit margin increased significantly as a result of the increased yield and reduced need for pest control chemicals.

12% Seaweed Extract Fertilizer FAQ

This fertilizer is rich in essential nutrients. It contains a variety of vitamins such as A, B, C, and E. Additionally, it has minerals like potassium, calcium, magnesium, and trace elements that are crucial for plant growth. These nutrients support various plant functions, from photosynthesis to cell development.
Unlike traditional fertilizers that mainly focus on macronutrients like nitrogen, phosphorus, and potassium, 12% seaweed extract fertilizer offers a more comprehensive nutrient profile. It contains bio – active substances such as plant growth regulators (auxins, cytokinins, and gibberellins) that can stimulate plant growth, improve soil structure, and enhance plant immunity. Also, its slow – release nature provides a long – term and stable nutrient supply, reducing the risk of over – fertilization.
Generally, it can be used for a wide range of plants, including vegetables, fruits, flowers, and field crops. However, different plants may have different nutrient requirements. For some specialized plants, it may be necessary to adjust the application method or dosage according to their specific needs. For example, acid – loving plants might require a slightly different approach compared to alkaline – tolerant ones.
  • Soil application: For general garden soil or farmland, apply 1 – 2 liters of the 12% seaweed extract per acre. Dilute it with water at a ratio of 1:200 – 1:300 (seaweed extract : water).
  • Foliar spray: Dilute the 12% seaweed extract with water at a ratio of 1:300 – 1:500. Apply 0.5 – 1 liter of the diluted solution per 1000 square feet of plant foliage area.
  • Potted plants: For small – to – medium – sized potted plants (up to 12 inches in pot diameter), mix 5 – 10 ml of the 12% seaweed extract with 1 – 2 liters of water. For larger potted plants (12 – 24 inches in pot diameter), increase the amount to 10 – 15 ml and mix with 2 – 3 liters of water.
  • Soil application: It can be applied once at the beginning of the planting season, and for longer – growing crops, a top – up application may be done mid – season.
  • Foliar spray: Repeat every 7 – 14 days during the growing season, depending on the plant’s growth stage and nutrient requirements. For potted plants, water with the diluted solution once every 2 – 3 weeks.
Yes, it is. Made from natural seaweed sources, it is biodegradable. It does not contain harmful chemicals that could pollute the soil, water, or air. Using this fertilizer contributes to sustainable gardening and farming practices, as it helps maintain a healthy soil ecosystem and reduces the environmental impact associated with synthetic fertilizers.
Absolutely. The seaweed extract can enhance soil structure. It improves soil porosity, allowing better air and water penetration. This creates a more favorable environment for root growth and the activity of beneficial soil microorganisms. Over time, it can also increase soil organic matter content, which is essential for long – term soil fertility.
The time to observe effects can vary depending on the plant type, growth stage, and environmental conditions. Generally, for foliar applications, you may start to notice improvements in leaf color and texture within 1 – 2 weeks. For soil applications, significant changes in plant growth, such as stronger root development and increased plant vigor, may become visible within 3 – 4 weeks. However, for long – term benefits like soil improvement, it may take several months or even a full growing season.
In most cases, it can be mixed with other fertilizers and pesticides, but it is advisable to conduct a small – scale compatibility test first. Some chemicals may react with the components of the seaweed extract, so it’s important to ensure that they do not reduce the effectiveness of either product. Always follow the manufacturer’s instructions regarding mixing, and if in doubt, consult an agricultural expert.
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Store it in a cool, dry place away from direct sunlight. Keep it out of reach of children and pets. Make sure the container is tightly sealed to prevent moisture from entering, as this could affect the quality and shelf – life of the fertilizer. If stored properly, it can maintain its effectiveness for up to [X] years as indicated on the product label.

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12% Seaweed Extract Fertilizer

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