1. Soil Organisms
Chapter 11

3. And the relationship among
soil organisms may be discussed
in terms of their position in the
food web.

5. log 104 = 4, right? That’s a lots a bugs. Assuming
a density of ~ 1 g cm-3, maybe
up to 30 m3 per ha!

8. The latter can be disputed –linings of channels are highly adsorptive of chemicals.

17. Gotta be at surface, right?

31. → →

32. → → → →

33. Nutrient elements like N, S and P are released in simple inorganic (mineral)
forms that are available to plants and other soil organisms, including other
microorganisms.

34. Yes, microbes do compete with plants for same nutrients.