Seaweed Extract Powder Specification

seaweed extract powder is one kind of 100% water soluble bio-organic fertilizer, it is dark powder. It is extract from brown seaweed Ascophyllum nodosum or other kelp. In addition to alginic acid, seaweed extract also contains essential plant elements nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), and manganese (Mn), copper (Cu), zinc (Zn), molybdenum (Mo), boron (B), etc.; it also contains 18 protein amino acids that can be directly absorbed and utilized by plants and plant growth substances that have significant effects on plant physiological processes ( Auxin, cytokinin, gibberellin, etc.); also contains vitamins, nucleotides, humic acid and plant stress resistance factors. Seaweed extract integrates plant nutrients, biologically active substances, and plant stress resistance factors. It is an ideal full-function seaweed fertilizer.

seaweed extract powder

Seaweed extract powder specification

Alginic Acid,%≥18.0
Organic matters, %≥ 45
N,%2.9
P2O5,%0.5
K2O,%18.7
N+P2O5+K2O,%≥20.0
PH8.0-10.0
As,mg/kg≤10
Cd,mg/kg≤10
Pb,mg/kg≤50
Cr,mg/kg≤50
seaweed extract specification

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