Impacts of "Zhuanggenling" and Chlormequat Chloride("Aizhuangsu" )on Yield and Polysaccharide Content of Polygonatum odoratum Animal Husbandry and Feed Science . 2016, (5): 7 -7 .  DOI: 10.12160/j.issn.1672-5190.2016.05.003