Seaweed extract(flake)

*Product character:Black brown powder or flake
*Alginate :18%min ,
*N:1%min ,
*P2O5:1.5%min ,
*K2O :18-21%min ,
*Mannitol:0.5%min ,
*I ;720ppm ,
*Organic matter :45% -50% ,
*Moisture:1%max