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Nitrogen in Ecosystems . Nitrogen:Essential for plant and animal growth.Animals gain N by consumption.Plants generally obtain N by root uptake.Available N tends to be in short supply in ecosystems (therefore competition for N). Abundant supply of N in air, but available N pool is in soil.. N S
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1. Nitrogen and other Nutrients in Agroecosystems
2. Nitrogen in Ecosystems Nitrogen:
Essential for plant and animal growth.
Animals gain N by consumption.
Plants generally obtain N by root uptake.
Available N tends to be in short supply in ecosystems (therefore competition for N).
Abundant supply of N in air, but available N pool is in soil.
3. N Supply Critical for Plants