問題一覧
1
Protein synthesis
Nitrogen
2
Conversion from organic to inorganic
Mineralization
3
High surface area is equivalent to high soil holding capacity
TRUE
4
Also called as nutrient mining
crop removal
5
Major components of organic compound
All of the above
6
Conversion from inorganic materials back to organic
immobilization
7
The rate of replenishment of the nutrients in the soil solution as they are absorbed by plant roots
Rate factor
8
Is a term which describes in a general way the relative ease in which a nutrient element is supplied by the soil to the plant
Availability
9
Stomatal movements; osmotic potential in plant cells
Potassium
10
Capacity to sustain plant life with required nutrients
Soil Fertility
11
Reduction of NO3 into gaseous forms of Nitrogen
Denitrification
12
Movement of nutrients from higher to lower concentration
Diffusion
13
The ability of the soil to replenish the ions in the soil solution as they are absorbed by the root
Capacity factor
14
Used by fertiliser companies to manufacture most nitrogen carriers
Haber- Bosch process
15
How many essential elements
18
16
Key role in ATP reactions or energy transformation
Phosphorus
17
Conversion from NH4 to NH3 or ammonium to ammonia
Volatilization
18
Mechanisms by Which nutrients are made available to plant roots
All of the above
19
A process wherein there is an intimate contact with soil surfaces so that ions are exchange directly between the soil particles and the root surface
Contact exchange
20
Soil Fertility is edapological approach
TRUE
21
Denitrification caused by what kinds of bacteria
Chemoautotrophic bacteria
22
The nutrients are absorbed by the roots as they ramify through the soil
Root interception
23
These 2 micronutrients involves in nitrogen cycle
Iron, Molybdenum
24
Most abundant minerals containing Al, O and Si
Silicates or alumino- silicates
25
Phosphorus comes from apatite minerals
TRUE
26
Ammonium ion to nitrite will become nitrogen gas
Anammox
27
The process of which running water on the soil surface, wind, ice or other agents transport soil from one place to another
soil erosion
28
The concentration of the nutrients in the soil solution
intensity factor
29
When the nutrients dissolved in soil water is transported to the root surface
mass flow