The fresh weight of greengrocery in treatments with 1%, 2% nanometer organic silica addition was similar and the biggest, while that of CK was the lowest.

• [结果]纳米有机二氧化硅可促进小青菜生长，添加量为1%25、2%25的处理小青菜鲜重相等，且最大，对照鲜重最低；