Seaweed Extract Liquid/powder with customized packing Black or ... %,mannitol: 1-6%,N≥0.5%,P2O5≥3.0%,K2O:18-22%,I≥400ppm; much secondary element and microelements, ... cytokinin,betaine,vitamine,trehalase,amino acid.Efficacy: Improve crop's quality ... 3~4 times in whole growing period.Warning:1. Good effect can be received if used in the evening or ...