Cengage Advantage Books: Sustaining the Earth 10th Edition by Tyler Miller,Scott Spoolman

Exercise 13

Describe two ways in which governments influence food production. What is soil conservation ? Describe five ways to reduce soil erosion. Distinguish among the uses of organic fertilizer, manufactured inorganic fertilizer, animal manure, green manure , and compost as ways to help restore soil fertility. Describe ways to prevent and clean up soil salinization.