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18% Potassium 80 Mesh Seaweed Extract Fertiliser

Categories Seaweed Extract Powder Fertilizer
Brand Name: New-Nutri
Model Number: Seaweed Extract
Certification: OMRI
Place of Origin: China
Payment Terms: T/T, L/C, D/P, Western Union
Supply Ability: 500 Metric Tons per Week
Delivery Time: 5-8 Work Days
Packaging Details: 1kg/5kg/10kg/20kg/25kg/Jumbo bag
Appearance: Black Powder
Alginic Acid: ≥18%
Total Nitrogen: 1%-3%
Phosphorus: 1%-5%
Potassium: ≥18%
Micro-Elements: ≥1%
Organic Matter: ≥45%
PH: 8-10
Water Solubility: 100%
Size: 80-100 mesh
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18% Potassium 80 Mesh Seaweed Extract Fertiliser

OMRI Listed Seaweed Extract Powder Fertilizer , Alginic Acid , Ascophyllum Nodosum

Kelp Extract is 100% natural and widely used in organic practices around the globe. It is extracted from fresh kelp seaweed (algae), Ascophyllum nodosum.

This pure and unadulterated seaweed extract is suitable for all crops and applications, including field crops, potting soil, vegetable and flower gardens, orchards, and turfgrass.

It promotes a balanced growth of crops, boosts the capacity of immunity and resistance of the crops, improves overall crop quality, and increases the crop yield.

RankAlginic AcidTotal NitrogenPhosphorusPotassiumMicro-ElementsOrganic MatterPHWater SolubilityAppearance
1≥18%1%-3%1%-5%≥18%≥1%≥45%8-10100%Black Powder
216-18%1%-3%1%-5%≥16%≥1%≥45%8-10100%Black Powder
310-16%1%-3%1%-5%≥16%≥1%≥45%8-10100%Black Powder
48-10%1%-3%1%-5%≥13%≥1%≥45%8-1098%Black Powder
54-8%1%-3%1%-5%≥10%≥1%≥45%8-1098%Black Powder


1. Promoting root growth, alleviating successive cropping obstacles, increasing the fertilizer application efficiency, and slowing plant senescence.
2. Controlling and balancing the growth of plants, preventing excessive growth of branches, decreasing pruning.
3. Improving the growth of leaves and photosynthesis, which is good for nutrient accumulation, trans- portion, and storage.
4. Promoting budding and flowering, decreasing, preventing bud, flower, and fruit decreasing and abnormal fruit, small fruit, and rotten fruit.
5. Promoting to keep a good shape, bright and colorful peel, high sugar content, and long-term storage.


This product needs to be diluted twice before using, ensure fully dissolved and add the right amount of water in a small container, then add Kelp Extract with stirring, diluted to be 100-200 times as mother liquor, then pour the mother liquor into the container and add water dilute to use multiple.

Application PeriodApplication MethodsDilute RatioDosageInterval
Avoiding full-bloom stageSprayingDiluted as 2000-3000 times300-900g/ha≥10days
The whole growth periodIrrigationDiluted as 1500-2000 times3000-9000g/ha≥10days
The whole growth periodWateringDiluted as 1200 times400-600g/ha≥25days


  • 1kg/5kg/10kg/20kg/25kg/Jumbo bag
  • Custom packaging is available based on quantity.


  • Store in a cool and dry damp-proof place.

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