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sws3022 UF exam 3 Study Guide with Complete Solutions

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sws3022 UF exam 3 Study Guide with Complete Solutions Note the various forms of N - Answer️️ -1. Ammonium (NH4+) cation in the soil solution and fixed in secondary clays 2. Nitrate (NO3-) anion in the soil solution 3. Organic N in the soil 4. Ammonia (NH3) gas (released to atmosphere) 5....

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  • September 16, 2024
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sws3022 UF exam 3 Study Guide with
Complete Solutions


Note the various forms of N - Answer✔️✔️-1. Ammonium (NH4+) cation in the soil

solution and fixed in secondary clays

2. Nitrate (NO3-) anion in the soil solution

3. Organic N in the soil

4. Ammonia (NH3) gas (released to atmosphere)

5. NO, N2O, N2 gases (released to atmosphere)

anion- nitrogen - Answer✔️✔️-it is not held by soil colloids and can be lost from the soil

through leaching. However in well aerated soils (plenty of oxygen), most of the NH4+-N

(applied for example as fertilizer) changes to the NO3--N form by a process called

nitrification

cation-nitrogen - Answer✔️✔️-it can be held on the exchange sites of soil colloids which

makes it available for plant uptake over a long period of

time.

Describe one reaction that leads to loss of N from the soil: - Answer✔️✔️-Nitrate leaching

into ground

water.

symbiotic N2 fixation that occurs between legumes and rhizobium




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