Format:Double CD Audio Lecture

Time: 134 min.

Dr. Elaine Ingham discusses the effect chemically intensive agriculture has had on soil life, why pesticides are effective initially, but with continued use, result in the destruction of beneficial soil life, with direct negative impacts on sustainable agriculture.

Included in this Double CD set:

1. What is Soil? Parent Material? Dirt?
   
2. The plant production gradient and succession
   
3. Soil Foodwebs in different systems. What's different in deserts vs. tropical rain forests?
   
4. Deserts to grasslands to old-growth: Biomass, numbers of individuals, number of species of each soil foodweb functional group.
   
5. Agriculture: How did we get where we are today?
   
6. Why does improving the foodweb in degraded soil mean increased yields?
   
7. Different crops require different foodwebs for best production: Examples from agricultural fields and orchards.
   
8. Summary