In order to probe into the suitable sowing stage of ratooning rice,two hybrid rice combinations (Peiliangyou500 and Shanyou63) were used to study the effects of sowing stage on the sprouting of axillary bud and yield of ratooning rice.The result showed that there were significant effects of different sowing stage on the growth stage,the sprouting of axillary bud and yield of ratooning rice,rice sowed on March 31 was best,and the grain yield was highest that sowed on April 11 was worse,but it could mature normally,that sowed on April 19 could not reach full heading stage before safely full eari...