... acid≥ 100 g/L, mannitol ≥10 g/L, N≥5 g/L, P2O5 ≥ 0.5 g/L, K2O≥50 g/L, I≥200ppm ... IIAlginic acid≥20 g/L, Organic matter≥90 g/L, N≥1.5 g/L, P2O5 ≥ 80 g/L, K2O≥140 g ... /LPH=5-8, specific gravity: 1.27-1.31Efficacy:Have double efficacy ... with water for 800-1000 times. Dosage: 2.8-3.5 L/ha. To apply 3~4 times in whole growing ...