Question

For what purpose Lazer leveler is used?
A. Resource conservation
B. Pest management
C. Land leveling
D. Enhancing land and water use efficiency
Choose the correct answer from the options given below:

• A. A, B and D only
• B. A, C and D only
• C. B, C and D only
• D. A, B and C only

Hint:

Laser levelers save up to 20--30% of irrigation water and increase crop yields by improving nutrient and water distribution uniformity across the field.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Precision agriculture utilizes advanced technologies to optimize input use and improve farm efficiency.
Laser land leveling is a process of leveling agricultural fields with high precision using a laser-guided transmitter and receiver system.

Step 2: Detailed Explanation:
Let us evaluate the purposes and benefits of using a laser land leveler:
- C. Land leveling: This is the primary physical function of the machine.
The laser transmitter guides the bucket scraper to automatically level the soil surface with millimeter-level accuracy.
- A. Resource conservation: This is a major benefit of precise leveling.
By creating a flat surface, water spreads uniformly across the field.
This prevents waterlogging in low spots and dry conditions in high spots, conserving irrigation water, diesel fuel, and labor.
- D. Enhancing land and water use efficiency: This is a direct consequence of a level field.
Water application efficiency is improved because less water is wasted as deep percolation or runoff.
Land use efficiency is also increased because redundant field channels and bunds can be removed, expanding the cultivable area.
- B. Pest management: A laser leveler is not designed or used for pest management.
Therefore, A, C, and D are correct, while B is incorrect.

Step 3: Final Answer:
A laser leveler is used for resource conservation, land leveling, and enhancing land and water use efficiency, corresponding to Option (B).