Chitosan oligosaccharide could be considered as water-soluble chitosan oligomer which is made from depolymerizing chitosan by enzyme hydrolysis. And its average molecular weight (â?¤3kDa) is muc lower than chitosan's (â?¥100KDa). The low molecular weight benefits prominent water solubility and bioactivities which attracting the interest of many researchers and companies to utilize chitooligosaccharide for agricultural applications. 1. Activate Plant Defense Responses against Fungal, Bacterial, Vivus Diseases & Environment Stress - Activate and induce plant immune reactions & plant self-defence machinery to increase the resistance ability under environment stress(heat, cold, drought, etc) - Activate plants' defense response in the treated plants and stimulate additional biochemical pathways that strengthen the plant structure and act against the fungal, bacterial and vivus diesases. 2. Promote Plant Growth and Enhance Yield Potential - Promote plant seed germination and seeling growth - Promote plant root, stalk and leaf growth - Promote plant fruit growth, and improve yield & profits - Mineral absorption accelerant 3. Improve Soil Structure - Prevente and Restrain nematodes - Activating the growth of useful microbes, suppressing harmful microbes - Restoration of soil ecology