Fertilizers and the Environment

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

After completing this lesson, students will be able to recognize that farmland is a resource; appreciate that the world's growing population demands an increase in food productivity; describe the role fertilizer plays in increasing food productivity; distinguish between organic and commercial fertilizers; describe how excess nutrients are harmful to the environment; and identify different sources of nutrient pollution.

Free

Nourishing the Planet in the 21st Century

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

After completing this lesson, students will be able to appreciate how soil properties contribute to plant health; recognize that nutrient deficiencies limit crop productivity; understand the role of fertilizer in growing crop plants and in restoring nutrient balance to agricultural soils; relate crop productivity to the need for more farmland; and describe challenges associated with feeding the world's growing population.

Free