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potassium fertiliser A chemical fertilizer containing potassium. Potassium (K) is required by all plant and animal life. Plants require potassium for photosynthesis, osmotic regulation and the activation of enzyme systems
environ.	钾肥 (含有钾的化学肥料。钾(K)是维持所有植物和动物生命必须的化学元素。植物的光合作用和活化酶系统需要钾渗透调节。)