sws3022 UF exam 3 Study Guide with Complete Solutions
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Course
SWS3022
Institution
SWS3022
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....
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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