The randomized block design was used to research the relationship of fertilization with starch content.The results showed that the medium combined application of nitrogen,phosphorus and potassium could increase the starch content and the amylopectin-amylose ratio significantly.The combined applications of high-nitrogen and low-phosphorus,low-nitrogen and low-potossium,medium-phosphorus and medium-potassium could increase the content of amylopectin,but were not benefit to the accumulation of the amylose.