Question

Crop Production And Management.


1.What do you mean by “Nitrification”?
1 point
[A]. Conversion of air nitrogen into nitrites and nitrates by nitrogen microbes,
[B]. Conversion of dead decaying matter into ammonia and then into nitrites and nitrates by nitrifying microbes,
[C]. Conversion of nitrites and nitrates from decaying organic matter into gaseous nitrogen by denitrifying microbes,
[D]. All the above
2. The process of Loosening and turning of soil is called *
1 point
[A]. Irrigation and manuring
[B]. Digging and winnowing
[C]. Tilling and ploughing
[D]. Harvesting and storage
3 The conversion of nitrogen into nitrates is known as *
1 point
[A] Nitrogen fixation
[B] Ammonification
[C] Nitrate Assimilation
[D] Nitrogen cycle
4 In which of the following methods of irrigation rotating nozzles are used? *
1 point
[A]Moat
[B] Drip system
[C] Chain Pump
[D] Sprinkler system​

Answer 1

Explanation:

1. A Conversion of air nitrogen into nitrites and nitrates by nitrogen microbes

2. C Tilling and Ploughing

3. A Nitrogen Fixation

4. D Sprinkle System

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Answer 2

Answer:

1. option C- Conversion of nitrites and nitrates from decaying organic matter into gaseous nitrogen by denitrifying microbes.

2. option C- Tilling and ploughing

3. option A- nitrogen fixation

4. option D- Sprinkler system