The application of potassium fertilizer decreased the amylose content, while the content of amylopectin and starch increased, especially for the middle level of potassium.

• 增施钾肥，面粉中直链淀粉含量下降，而支链淀粉和总淀粉含量显著上升，因此直／支链淀粉含量比例显著下降，但以中钾条件下支链淀粉和总淀粉含量最高。