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Plant Nutrition
Just like humans and other animals, plants need a certain amount of nutrients to thrive and grow. In this Lesson, well learn about these required nutrients and find out what happens when theyre missing from a plants diet.
Because plants get most of their nutrients from soil, well discuss how soil is created and how its composition can vary depending on water flow, plant life, and the numerous organisms that live there.
The nitrogen gas in the air is unusable by plants, so they rely on bacteria to fix it into a usable form. In the last part of the Lesson, well focus on the process of nitrogen fixation. Well learn about the different kinds of nitrogen-fixing bacteria and their relationships with plants and soil.
Well also find out how farmers can improve the usable nitrogen content of their land with crop rotation and fertilizers, and well take a look at the environmental consequences of commercial fertilizer use.