Hong Kong | Singapore | Malaysia | Australia

Ocean Humistem SG

Ocean Humistem SG

PK compound fertiliser containing the  organic matter of grass after abiotic stress

Ocean Humistem SG is a root stimulant and bio-nutrient that is easily and rapidly assimilated by the plant. Highly concentrated PK, humic acids, amino acids, and microelements facilitate the turf’s nutrient availability and increase the soil’s overall characteristics.


Key Benefits

  • Promotes primary & secondary root development during initial stages
  • Efficient anti-stress effect in adverse climatic situations (hydric or thermal stress, transplanting etc.)
  • Growth stimulating effect during initial stages
  • Improves water retention and physical characteristics of the soil (better soil oxygenation and aeration, drainage, aggregates formation)
  • Improves fertiliser use enhancing chemical characteristics (improved cation exchange capacity, better nutrients availability and root uptake)
  • Biological improvement (microbial life, promotion of cell division)


About Ocean Knowledge

Established in 2018, we are a Donegal based company who specialize in the distribution of a high quality seaweed/kelp fertilizer to the sportsturf and agricultural markets.


In the near future, we aim to continue our growth in becoming the main supplier of seaweed/kelp fertilizer to the sports turf and agriculture markets. We expect to more than double our full-time workforce and distribute to 35 countries worldwide over the next five years. In doing so, we aim to be entirely carbon neutral by the year 2025.

We have already made significant progress toward this objective, thanks to our ethical harvesting techniques, sustainable packaging, and our employees & shared ideals of decreasing carbon emissions in their everyday operations.


Producing and distributing high quality organic bio-stimulants and speciality fertilizers for the global amenity and sports turf market.



Centaur Asia Pacific is the distributor for Ocean Knowledge range of products in Hong Kong, Macau, Singapore, Malaysia, Vietnam, Thailand, Taiwan, and Philippines.

Updated on: 24 June 2022

Technical Specifications

Total humic extract 29.10% w/w
Humic acids 14% w/w
Fulvic acids 15.1% w/w
Free amino acids 22.2% w/w
Organic nitrogen (N) 3% w/w
Phosphorus (P2O5) soluble in water 16.4% w/w
Potassium (K2O) soluble 18% w/w
Iron (Fe) Soluble in water and chelated by EDDHA 0.1% w/w 
Manganese (Mn) soluble in water and chelated by EDTA 0.2% w/w 
Zinc (Zn) soluble in water and chelated by EDTA 0.2% w/w 
Molybdenum (Mo) soluble in water 0.25% w/w



Soluble micro-granules (WG)


Application Rates

10kg - 15kg per Ha

3.5 ounces - 5 ounces per 1000sq feet