The quality of your food depends on the quality of the soil in which it
is grown. Is organically produced food superior to conventionally grown
food? How do earthworms and trace minerals benefit soil, and the food
and feed grown on it? How do intentionally applied fertilizers,
pesticides, and sludge, as well as inadvertent contaminants, affect
soil? This book is important reading for understanding how quality soil
relates to good health.