Abstract: Effects of silicon,boron and other trace elements on the physiological properties of lily were studied.The results showed that silica and trace elements,silicon in particular,increased the lily’s plant height by 2-8 cm,stem diameter by 1.98-2.05 cm,number of flowers by 8.3%-23.6%,and bud size by 2.1%-4.0%.And at the same time,they improved the N,P,K and chlorophyll contents in the plant.As the silica application increased(≤450 kg·hm-2),the above indexes increased correspondingly.