All nutrients cycle, but the nutrients in highest demand &#151; phosphorus, potassium, and nitrogen, for example &#151; cycle rapidly through many steps Nitrogen available to trees and other plants comes from dead organic matter, from the atmosphere through precipitation, or from the activity of certain microorganisms (Figure 2).
(cycle rapidly through many steps Nitrogen available to trees and other plants; comes; from dead organic matter)
cycle rapidly through many steps Nitrogen available to trees and other plants
comes
from dead organic matter