Quick guide to fertilizing plants | UMN Extension
https://extension.umn.edu/manage-soil-nutrients/quick-guide-fertilizing-plants
WebHow-to. Managing soil and nutrients. Quick guide to fertilizing plants. Quick facts. There are 17 essential nutrients that all plants need, including carbon, hydrogen, and oxygen, which plants get from air and water. Nitrogen, phosphorus, and potassium are needed in larger amounts than other nutrients; they are considered primary macronutrients.
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