Potassium application raised not only grain yield, but fatty acid, protein and their constituents.However, starch and its constituents of amylopectin, declined due to the application of potassium.

• 施钾在提高产量的同时,增加了子粒中脂肪和蛋白质及其组分含量,但减少了淀粉总量和支链淀粉含量。