potassium is a kind of nutrient for plant growth
cabbage is plant. potassium_phosphate is inorganic_substance. potassium is mineral. potassium_phosphate is salt. potassium is element. potassium_nitrate is inorganic_compound. potassium_32 is potassium. potassium_chlorate is salt. potassium is alkaline_metal. angraecum is plant.