Phyllostachys shoot grown from seed were sprayed by lanthanon multiple fertilization, naphthalin acetic acid, GGR and KH_2PO_4 with random group sample method.
采用随机区组设计方法,对毛竹实生幼苗喷施稀土多元复合肥、萘乙酸、GGR和复混磷酸二氢钾。
Serials of naphthalin and tripolycyanamide have low water reducing efficiency, bad flow degree under low water cement ratio and sharp loss of concrete slump.