... 6-8, specific gravity: 1.10-1.15Main ingredient:Alginic acid≥20 g/L, organic matter≥100 g/L, mannitol≥10 ... much secondary element and microelements, cytokinin, betaine, vitamine, trehalase, amino acid.Efficacy:Supply organic nitrogen, increase soil fertility, enhance crop's ... 's yield, enhance crop's resistance to disease and bacilli.Method of application:Spraying: to dilute it with water for 1500-2000 ...