英语语法分析

Kalium in the soil doesn't vary clearly.

研究区土壤中钾素含量变化不明显。

The content of kalium was more than sodium.

中华绒螯蟹钾的含量明显高于钠。

Fertilizer handling accelerated the absorption of nitrogen, phosphorus and kalium in cole.

肥料处理促进油菜对全氮、全磷、全钾的吸收。