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1997～1998年在高水肥地进行了钾肥用量试验研究．结果表明，含速效钾245mg·kg-1的土壤施钾增产不显著，含速效钾209mg·kg-1的土壤施钾达到了显著的增产效果。施钾后，小麦植株干重、吸钾强度、吸钾数量明显提高。适宜施肥量（K2O）7．5～10kg／667m2，增产幅度18％～25％。
From 1997 to 1998, potash fertilizer experiment was carried out on high water and fertilizer. The results showed that the yield of potassium in the soil with available potassium 245 mg · kg-1 was not significantly increased, and the yield of potassium with soil available potassium 209 mg · kg-1 was significantly increased. After applying potassium, dry weight of wheat plant, potassium absorption intensity, potassium absorption increased significantly. Appropriate amount of fertilizer (K2O) 7.5 ~ 10kg / 667m2, increase rate of 18% to 25%.