At the same level of potassium fertilization, plant K uptake increased with N increasing, at the same level of nitrogen fertilization, plant K uptake obviously increase with K addition increasing.

• 在相同施钾水平下，植株吸钾随着氮水平提高而增加。在相同施氮水平下，植株吸钾量随着施钾量提高而增加。