Soil Organisms Chapter 11
And the relationship among soil organisms may be discussed in terms of their position in the food web.
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!
The latter can be disputed –linings of channels are highly adsorptive of chemicals.
Gotta be at surface, right?
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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.
Yes, microbes do compete with plants for same nutrients.