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Tue 16 Jan 2018
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What is LSO Seaweed?



LSO Seaweed is a 100% fresh seaweed extract from brown seaweed such as Sorgassum, Ascophyllum nodosum, and Laminaria. It contains various natural nutrient substances, trace minerals, carbohydrates such as alginic acids, polysaccharide and etc.

It is suitable for all crops including field crops, potting soil, vegetable and flower gardens, orchards and turf grass, and suitable for most methods of application, such as foliar application, irrigating application (including irrigation in drops, irrigation by infiltration and spray irrigation etc.), soil application, soaking seed and so on.


Typical Analysis

Analysis of Soluble Seaweed Powder               Wt/Vol


Dry Matter

> 98.0

Organic Matter (%)                   45.0~55.0
Total Nitrogen 1.69%
Potassium (K2O) 10.00%
Magnesium (Mg) 0.42%
Calcium (Ca)  0.17%
Iron (Fe)    0.06%
Copper (Cu) 0.003%
S 3.1%
Na 2.2%
PH 9-11
Specific Gravity 1:0.53-0.55
Solubility in water 100%

Carbohydrates: Alginic Acid Mannitol Laminarin



The characteristics of LSO Seaweed enable it to have the following effects on the plants:

  • Rapidly complement the nutrients, improve the quality of product
  • Improve blossom and fruit
  • Thicken, enlarge and balance the leaf growth, supply well-balanced crop nutrients
  • Helping plants to ensure environmental stress
  • Improve the fruit size


Foliar Application: see next side

Fertirrigation: (irrigating application): Fertirrigation using hose pipe: as synergizing action of mineral fertilization, dosage: 1.5-2.0 lbs/Acre. Irrigation methods includes spray irrigation, drip irrigation, and flow irrigation.

Seed-soaking: It also can be used to soak crop seed before planting, suitable foe the pre-germination of seeds, dilution rate is 1:3000-5000. And the time of soak is determined according to the thickness of seed skin. In general, it should be soaked 5-8h. It can reduce the mortality rate, using it for several minutes before transplanting shrubs, plants or trees. (see next page)

Tank Mixing Compatibility:

LSO Seaweed is compatible with most, but not all, pesticides, growth regulators and micronutrients with regards to physical tank mixing and biological effects on the crop. However, Land & Sea Organics, Inc. cannot accept any liability for any loss or damage as not all pesticides have been tested and because the efficacy of any mix will depend on, among other factors, the pesticide concerned, crop conditions, growth stage, weather, and volumes of water used.


LSO Seaweed should be stored in frost-free condition with optimum storage range between 5-40°C. Soluble Seaweed Extract Powder is a non-hazardous and non-flammable foliar fertilizer. Gloves and face shield should be worn when handling the concentrate. Soluble Seaweed Powder is hygroscopic and must be kept in sealed (air tight) containers at all times. As a natural product, strict and scientific inspection and controlling can guarantee steady & high quality.

Packaging: LSO Seaweed is packaged in 20 kg boxes.



204 Kerr Avenue
Modesto, CA 95354

Phone: (209) 527-0607

Toll-Free: (800) 278-7423

Fax: (209) 527-1279

LSO Seaweed Documents

LSO Seaweed MSDS(Material Safety Data Sheets)


LSO Seaweed Label


LSO Seaweed OMRI Certificate


LSO Seaweed Information

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