Why do plants contain minerals?

Question

Do plants simply pull mineral content from soil? Example, kale is a source of potassium. If I was able to remove all of the potassium out of the soil and ground in my garden, would a kale plant grow if I planted the seeds and watered it? (Assuming correct climate conditions)

In: Chemistry

Answer 1

This is why we use fertilisers. To replenish the minerals and other stuff that our crops extract from the soil.