[Objective]The study aimed to insure the appropriate range of phosphate application rate of rape in Guichi of Anhui Province. [Method]The field test was conducted in Guichi of Anhui Province,in the conditions of npk fertilizer application,the effects of different phosphate fertilizer application amount(0,45,90,180 kg/hm~2)on the biological characteristics,yield and economic effect of rape were studied. [Result]Increasing P application amount could promote growth and development of rape.With the increased ph...