Flax variety "Fanni"with high quality as material,three treatments of "topping + inhibiting sprout",topping,inhibiting sprout were taken on anti-lodging and yield at flowering stage in flax was studied.The results showes:the anti-lodging effect significantly increased after three treatments respectively,anti-lodging effect,processing yield and fiber quality were the best after the treatment of by topping + inhibiting sprout.Compared with conventional flax cultivation,the lodging rate decreased 85.40%,Rawfiber yield incre...